Silent Exhaust Systems Incorporated http://www.silxsys.com Celebrating 10 years of excellence in design, development, and customer service Sun, 17 Jan 2010 14:02:52 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 SES Muffler Reduces Carbon Footprint http://www.silxsys.com/2009/11/17/68/ http://www.silxsys.com/2009/11/17/68/#comments Tue, 17 Nov 2009 20:59:12 +0000 Paul Sammut http://www.silxsys.com/?p=68 ?Ǭ†

?Ǭ†SES Muffler Reduces?Ǭ†Carbon Footprint

What is?Ǭ†carbon footprint?

A carbon footprint is a measure of the impact our activities have on the environment, and in particular climate change. It relates to the amount of greenhouse gases produced in our day-to-day lives through burning fossil fuels for electricity, heating and transportation etc.The carbon footprint is [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.]]> ?Ǭ†

?Ǭ†SES Muffler Reduces?Ǭ†Carbon Footprint

What is?Ǭ†carbon footprint?

A carbon footprint is a measure of the impact our activities have on the environment, and in particular climate change. It relates to the amount of greenhouse gases produced in our day-to-day lives through burning fossil fuels for electricity, heating and transportation etc.The carbon footprint is a measurement of all greenhouse gases we individually produce and has units of tonnes (or kg) of carbon dioxide equivalent.?Ǭ†

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?Ǭ†A carbon footprint is made up of the sum of two parts, the primary footprint (shown by the green slices of the pie chart) and the secondary footprint (shown as the yellow slices).?Ǭ†

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?Ǭ†1. The primary footprint is a measure of our direct emissions of CO2 from the burning of fossil fuels including domestic energy consumption and transportation (e.g. car and plane). We have direct control of these.?Ǭ†

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2. The secondary footprint is a measure of the indirect CO2 emissions from the whole lifecycle of products we use – those associated with their manufacture and eventual breakdown. To put it very simply ?¢‚Ǩ‚Äú the more we buy the more emissions will be caused on our behalf.
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How does the SES muffler reduce carbon footprint?
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The SES muffler reduces the primary footprint by increasing the horsepower output of an engine due to its low backpressure design. This in turn reduces the fuel consumption, enabling the engine to discharge less CO2 into the atmosphere.
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?Ǭ†As for the secondary footprint, SES Muffler reduces the component count by close to 40% over traditional mufflers, requiring less energy consumption in the manufacturing process. Additionally, this muffler is manufactured from T1-25 aluminized steel, which considerably extends the life of the product due to resistance to thermal breakdown of the muffler material plus maintenance of the appearance of the product as a result of the rust-inhibiting characteristics of this material.?Ǭ†
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EPA plans to classify carbon dioxide as pollutant

The EPA kick-started the regulatory process in April-09 when it proposed declaring carbon dioxide and five other greenhouse gases as pollutants that jeopardize the public health and welfare. EPA scientists believe the greenhouse gases contribute to global warming by trapping heat in the atmosphere.

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]]> http://www.silxsys.com/2009/11/17/68/feed/ 0 Patent Pending on SES Twin Cylinder Muffler http://www.silxsys.com/2008/11/14/ses-twin-cylinder-muffler-for-under-20-00/ http://www.silxsys.com/2008/11/14/ses-twin-cylinder-muffler-for-under-20-00/#comments Fri, 14 Nov 2008 22:55:37 +0000 Webmaster http://silxsys.raphsammut.ca/?p=30 ?Ǭ†

Patented modular design delivers performance at an incredible price. SES has had the best performing muffler on the market for the past few years but it came at a price that was too expensive for most OEM applications. As a result, SES spent the last 2 years developing a manufacturing process [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.]]> ?Ǭ†

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Patented modular design delivers performance at an incredible price.

SES has had the best performing muffler on the market for the past few years but it came at a price that was too expensive for most OEM applications.

As a result, SES spent the last 2 years developing a manufacturing process that would deliver the same muffler performance at half the price. The result was USPTO Patent Application No. 12/256,610 INTEGRATED MODULAR EXHAUST SYSTEM.

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Calll 1-888-875-3790 to order your muffler today.
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Conclusion

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SES is committed to offer the best value muffler on the market ?¢‚Ǩ‚Äú a perfect candidate for cost saving initiatives.

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]]> http://www.silxsys.com/2008/11/14/ses-twin-cylinder-muffler-for-under-20-00/feed/ 0 Manifolds decrease performance and increase cost! http://www.silxsys.com/2008/11/10/manifolds-decrease-performance-and-increase-cost/ http://www.silxsys.com/2008/11/10/manifolds-decrease-performance-and-increase-cost/#comments Mon, 10 Nov 2008 22:53:30 +0000 Webmaster http://silxsys.raphsammut.ca/?p=28

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Manifolds on twin cylinder engines channel the exhaust gases into one outlet. Several 90 degree [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.]]> ?Ǭ†

Manifolds should only be used when there is no other option.?Ǭ†?Ǭ†

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Manifolds on twin cylinder engines channel the exhaust gases into one outlet. Several 90 degree bends and weld joints are used to achieve this,?Ǭ†resulting in higher backpressure. Higher backpressure results in loss of performance and an increase in fuel consumption.

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Manifolds typically increase the cost of an exhaust system by 25% to 50%. This extra cost includes?Ǭ†material?Ǭ†and labor to manufacture the actual manifold. It also includes the extra hardware required to mount the muffler to the manifold such as clamps, mounting brackets and heat shields. Finally, there is the added cost of the muffler itself which now requires a mounting bracket and extra heat shielding due to its close proximity to air filter housings?Ǭ†and, in?Ǭ†some cases, fuel pumps.
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On?Ǭ†manual start engines, the?Ǭ† manifold/muffler is often located dangerously close to the recoil starter assembly. An inattentive or tired operator could easily use the hot muffler as a support while starting. In fact, rumor has it that there are a number of landscapers operators?Ǭ†with “TOH” (think of “HOT” in a mirror)?Ǭ†branded in the palm of their left hand.
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The advantages?Ǭ†of a dual mount muffler.

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Among the advantages of a dual mount muffler over a manifold are the following:
  • Lower cost
  • Increased horsepower
  • Better fuel consumption
  • Quicker installation time
  • Better sound performance due to larger muffler can volume
  • Less heat shielding required

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Regarding the last advantage, BS EN 836 Garden Equipment – Powered Lawnmowers – Safety section 4.1.3 states;

“A guard shall be provided to prevent accidental contact with any exposed engine exhaust ?Ǭ†components larger than 10 cm2 which have a surface temperature greater than?Ǭ† 80OC at (20+/-3)OC ambient temperature during normal starting, mounting and operation of the machine.”

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This means that as long as the operator cannot touch a hot surface during normal starting, mounting and operation of the unit, a heat shield is not required to meet CE requirements. Over-shielding of the muffler?Ǭ†always results in extra cost and?Ǭ†makes the muffler susceptible to backfiring and/or after-bang.
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Conclusion

SES has successfully designed a dual inlet muffler for?Ǭ†many applictions where formerly a manifold/muffler combination was the only option for an exhaust system.

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]]> http://www.silxsys.com/2008/11/10/manifolds-decrease-performance-and-increase-cost/feed/ 0 It is a material world for exhaust systems! http://www.silxsys.com/2008/11/03/it-is-a-material-world-%e2%80%93-for-exhaust-systems/ http://www.silxsys.com/2008/11/03/it-is-a-material-world-%e2%80%93-for-exhaust-systems/#comments Tue, 04 Nov 2008 00:43:50 +0000 Webmaster http://silxsys.raphsammut.ca/?p=18 ?Ǭ†

The Choice of Material Forms the Foundation of Small Engine Mufflers

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The exhaust system on your equipment is a tiny portion of the overall machine, yet if it doesn’t function as it should or if it fails in service, the symptoms are [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.]]> ?Ǭ†

The Choice of Material Forms the Foundation of Small Engine Mufflers

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The exhaust system on your equipment is a tiny portion of the overall machine, yet if it doesn’t function as it should or if it fails in service, the symptoms are immediately noticeable.

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A large portion of service failures are due to degradation of the materials in the muffler.
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Up until the late 1990′s, most small engine exhaust products were made from Mild Steel, which is a very inexpensive commodity. When used in light-duty applications, this material may well suffice, with low annual hourly use and non-demanding applications.

But when used on severe-duty equipment (commercial turf products, landscape mowers, construction products), degradation of the mild steel internals and muffler bodies can lead to failure in just a few short hours often in less than 100 hours of operation. As well, mild steel exhaust products oxidize very quickly when exposed to moisture, chemicals and the heat of the combustion gases. Typically, painting the complete system was a requirement, not an option, in order to maintain the appearance of the system components. Painting the external surfaces, however, does not prevent thermal failure of the internals.

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Material Options Available for Exhaust Products

The most commonly available exhaust system materials are:
  • Mild Steel: low cost, limited life
  • Stainless Steel: high cost, but an unlimited effective service life
  • Aluminized Steel: an excellent compromise incorporating durability with moderate cost.
In both Stainless Steel and Aluminized Steel, several grades are available, each with distinct benefits. Stainless Steel exhaust components are commonly made with 409 Stainless Steel.

Aluminized Steel offers far superior properties and durability than Mild Steel, with various grades available. Aluminized Steel Type 1 is an excellent heat resistant material effective to at least 1,250 F. Surface rust is reduced or eliminated, so that full muffler paint finishes are not required adding to the long term maintenance of the muffler appearance. Most important is that fact that aluminized steel can be welded using MIG welding and only assembly weld joints need to be paint-finished to keep rust to a minimum.

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Aluminized Steel Type 1 is continuously hot dip coated on both sides with an aluminum/silicon alloy coating. The hot dip process provides a tight metallurgical bond between the steel and the alloy costing. This process results in a material with the strength of steel plus the corrosion protection of aluminum, and the synergistic heat protection of an aluminum/silicon alloy.

All of the muffler products from Silent Exhaust Systems are fabricated from Aluminized T125 Steel.

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]]> http://www.silxsys.com/2008/11/03/it-is-a-material-world-%e2%80%93-for-exhaust-systems/feed/ 0 Performance – Low Back Pressure or Low Sound? http://www.silxsys.com/2008/10/13/performance-low-back-pressure-or-low-sound/ http://www.silxsys.com/2008/10/13/performance-low-back-pressure-or-low-sound/#comments Mon, 13 Oct 2008 19:39:44 +0000 Webmaster http://silxsys.raphsammut.ca/?p=14 It the past OEMs had to sacrifice power in order to achieve lower sound emissions when using traditional muffler designs. With SES’ new patented design, OEMs can now have more power while maintaining existing or achieving lower sound levels

Back Pressure ?Ǭ† The [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.]]>
Why choose when you can have BOTH!

It the past OEMs had to sacrifice power in order to achieve lower sound emissions when using traditional muffler designs. With SES’ new patented design, OEMs can now have more power while maintaining existing or achieving lower sound levels


Back Pressure

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The article www.HowStuffWorks.com explains how back pressure effects performance;

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“During the exhaust stroke, a good way for an engine to lose power is through back pressure. The exhaust valve opens at the beginning of the exhaust stroke, and then the piston pushes the exhaust gases out of the cylinder. If there is any amount of resistance that the piston has to push against to force the exhaust gases out, power is wasted.“

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When tested, an SES muffler measures approximately half the maximum allowable back pressure of 40″H2O (40 inches of water or 1.5psi), required by most non-road engine manufacturers.

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Sound

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Sound is energy and a muffler needs to eliminate it. The best way to do this is with a silencer which consists of a large enclosed chamber (the larger the better). In order to achieve this a huge amount of space is required. Stationary applications can afford have a silencer that is larger than the engine itself but is not feasible for mobile equipment.

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Sound cancellation and resonators are other techniques used to reduce sound. These techniques only work for specific frequencies at certain engine RPMs. Sound insulation (glass pack) is another technique but tends to deteriorate over time. Insulation increases the internal temperature of the muffler making it prone to backfire.

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The only option left is back pressure which is used to muffle sound. Traditional designs use many different components such as baffles to make different chambers and tubes to create a maze in an effort to reduce sound. The only result of using these components is increased back pressure.
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SES’ design maximizes the volume of the muffler which results in lower back pressure.

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Other benefits include;
  • More torque and power
  • Less emissions
  • Better fuel consumption
  • Lower skin temperature
Conclusion
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SES’ unique muffler design out performs all other traditional muffler designs by reducing back pressure and lowering sound in the same amount of given space. What is even more amazing is that this is achieved by using 40% less components. While many of our competitors tend to refer to muffler design as a dark art, SES sees it as pure science.

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]]> http://www.silxsys.com/2008/10/13/performance-low-back-pressure-or-low-sound/feed/ 0 Safety – Do Heat Shields Work? http://www.silxsys.com/2008/10/05/safety-do-heat-shields-work/ http://www.silxsys.com/2008/10/05/safety-do-heat-shields-work/#comments Sun, 05 Oct 2008 21:22:19 +0000 Paul Sammut http://www.silxsys.com/?p=85 ?Ǭ†As one customer put it “A heat shield attached to a muffler is not a heat shield!”. One cannot argue with this simple logic. Based on laws of thermal conduction, a heat shield mounted directly to the muffler will eventually become as [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.]]> Safety – Do Heat Shields Work?
It all depends on the objective.

?Ǭ†As one customer put it “A heat shield attached to a muffler is not a heat shield!”. One cannot argue with this simple logic. Based on laws of thermal conduction, a heat shield mounted directly to the muffler will eventually become as hot as the muffler itself.

Some heat shield designs will actually increase the internal temperature of the muffler by reducing heat loss due to thermal radiation. This will make the muffler more susceptible to backfires and flame outs especially on shut down.

Protecting the end user.

?Ǭ†According to BS EN 836 Garden Equipment – Powered Lawnmowers – Safety section 4.1.3; ?Ǭ†

“A guard shall be provided to prevent accidental contact with any exposed engine exhaust components larger than 10 cm2 which have a surface temperature greater than?Ǭ† 80OC at (20+/-3)OC ambient temperature during normal starting, mounting and operation of the machine.” ?Ǭ†

Any surface over 200OF, that can be touched accidentally, needs to be protected. A heat shield mounted to a muffler is typically over 500OF and needs to be guarded! ?Ǭ† The best solution to protect the end user would be a wire guard, not a heat shield. ?Ǭ†

Protecting electrical, fuel and hydraulic components.

Heat shields have limited success in reducing heat radiation to components in close?Ǭ†proximity. This is mainly done to protect hydraulic lines, wire harnesses, fuel lines, fuel pumps and solonoids. The components would still need to be a certain distance away. Contact with the heat shield will result in damage. ?Ǭ†

?Ǭ†Reduce temperature under the hood.

?Ǭ† This is where heat shields fail miserably because energy is neither created nor destroyed. The heat produced by a muffler in a closed compartment will be the same with or without a heat shield. Some short term success can be achieved by using fibre glass insulation in an effort to push more heat energy out the tailpipe. The major drawback with this solution is that fibre glass insulation deteriorates over time when exposed to heat. ?Ǭ† Scoop or venturi heat shields can reduce under the hood temperature by channelling engine cooling air over the muffler surface. These designs though effective tend to be complex and expensive. ?Ǭ†

?Ǭ†Conclusion
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In a nut shell, heat shields tend to be ineffective and at best, act as a visual warning. Caution signs can be displayed on heat shields but makes them even more expensive. ?Ǭ† The best solution would be to design the unit with the muffler located inside a bumper guard or underneath the unit (like a car). The performance of a muffler would be even better if it could have the engine cooling air directed towards it to help dissipate the heat. Otherwise, a wire guard would offer the best protection.
SES has a full range of heat shields but would me more than willing to recommed wire guard manufacturers to its customers if requested.

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]]> http://www.silxsys.com/2008/10/05/safety-do-heat-shields-work/feed/ 0 How is competitive pricing achieved? http://www.silxsys.com/2008/09/28/how-is-competitive-pricing-achieved/ http://www.silxsys.com/2008/09/28/how-is-competitive-pricing-achieved/#comments Mon, 29 Sep 2008 00:18:33 +0000 Webmaster http://silxsys.raphsammut.ca/?p=7 ?Ǭ†

Through extended testing and development, internal components were?Ǭ†?Ǭ†reduced by 40%, and we made it easier to automate the assembly of the ?Ǭ†remaining pieces.?Ǭ†?Ǭ†?Ǭ†

The stamped can reduced the [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.]]> ?Ǭ†Design for manufacture principals used to develop muffler

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?Ǭ†?Ǭ†?Ǭ†Too few products, even great products, are designed for ease of manufacturing.
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  • Modular DesignThrough extended testing and development, internal components were?Ǭ†?Ǭ†reduced by 40%, and we made it easier to automate the assembly of the ?Ǭ†remaining pieces.?Ǭ†?Ǭ†?Ǭ†

  • The stamped can reduced the quantity of muffler body components from 4 pieces to only 2 pieces, a 50% reduction. The stamped can was designed so that both of those pieces could be produced from the same tool.?Ǭ†?Ǭ†?Ǭ†

  • By introducing the exhaust gases through an offset entry, the inlet to muffler body junction ?Ǭ†was made significantly stronger by increasing the weld cross section. An added benefit was reorienting the exhaust gas flow in a ?جø¬?freeway on-ramp effect?جø¬?, reducing the sound levels generated by exhaust gas pulses hitting the opposing wall of the muffler body.?Ǭ†?Ǭ†?Ǭ†

  • The Silent Exhaust Systems new muffler body and internals reduces overall component count by 40%, saving not only the material costs but also the labor in set-up and assembly. Support bracketing is reduced or eliminated, a significant cost advantage.

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This muffler is truly an exhaust system available from a North American assembly source at offshore assembly prices.
Assembled Muffler
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Case in point: exhaust products. Traditionally, small engine mufflers consist of up to 14 individual components welded together. Silent Exhaust Systems designed and developed a muffler to address issues such as high ?Ǭ†assembly labor costs, large outlays for component ?Ǭ†product set-ups, and high component counts.
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]]> http://www.silxsys.com/2008/09/28/how-is-competitive-pricing-achieved/feed/ 0 Muffler from Silent Exhaust Systems Inc at Offshore Pricing http://www.silxsys.com/2008/09/14/muffler-from-silent-exhaust-systems-inc-at-offshore-pricing/ http://www.silxsys.com/2008/09/14/muffler-from-silent-exhaust-systems-inc-at-offshore-pricing/#comments Mon, 15 Sep 2008 01:25:27 +0000 Webmaster http://silxsys.raphsammut.ca/?p=4 Yet Another Related Posts Plugin.]]> North American Quality,
Offshore Pricing
Over 10 years in research and development
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Our new exhaust was developed over a 10 year period, and tested for hundreds of hours on every engine in the industry, including Briggs & Stratton, Generac, Honda, Kawasaki, Kohler and Subaru.The new Silent Exhaust Systems muffler was designed for ease of manufacture, using fewer components and reduced manufacturing labor. With?جø¬? our patent-pending modular design, the standard muffler body can be used on any engine from 15 to 30 Horsepower. With final assembly performed at our North American plant, we can assist our customers to maintain flexibility in their ordering requirements, with greatly improved production lead times.

Exceptional Service
Muffler – built better. Faster, too!
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The final assembly of the muffler is carried out in a state of the art, ISO- certified facility in North America . With the modular design of the muffler, the lead time from concept to production can be as?جø¬?short as 4 weeks for the standard muffler design. SES can respond quickly to changes in demand due to our unique production cell process.

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Best Value
Premium material and high performance

SES mufflers are manufactured exclusively from T125 aluminized steel, which offers ?جø¬?similar to stainless?جø¬? corrosion and oxidation resistance. Most of our product is shipped with only the welds protected by matching high-temperature paint, with the good looks of the exhaust maintained for the life of the muffler.

Can you say the same about the mufflers you?جø¬?re using after just a few hours of operation?Another benefit:?جø¬? Testing by engine manufacturers has demonstrated increased engine efficiency and power output compared with traditional muffler designs, on many of the engines you use in your applications.

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How did we do all this? Simple ?جø¬? we rethought the whole concept of small engine exhaust!

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