Small engine catalytic converter

The catalytic converter is part of the exhaust system, processing all exhaust leaving the engine before it can escape into the atmosphere. A bad or clogged catalytic converter can ultimately lead to engine failure, so it's important to address the issue promptly.

However, having catalytic converter problems doesn't necessarily mean that the converter has to be replaced. You may be able to fix your catalytic converter without replacing it using one of the following methods.

In your engine, fuel combines with oxygen in the air, set off by a spark or the heat of compression. Ideally, this chemical reaction would result in only motive energy, water vapor H2O , and carbon dioxide CO2. However, In real-world driving conditions, the ideal is difficult to achieve, resulting in harmful emissions. The catalytic converter uses precious metals and high heat to oxidize and reduce harmful emissions, converting them into safer compounds like H2O, CO2, nitrogen N2.

The "Italian Tune-Up" is a common fix for a range of automotive problems, including a clogged catalytic converter. Running a vehicle harder than usual for a few miles e. For example, if you typically fill your vehicle with the cheapest low-octane fuel, try running your vehicle on a few tanks of high-octane fuel. Adding one gallon of lacquer thinner to ten gallons of gas at your next refuel may also be effective clearing out catalytic converter deposits.

You can try either of these methods in combination with the Italian Tune-Up method. Auto parts oxygen sensor universal car engine part for for industrial and equipment catalytic sensor spacer. Cnc turning steel 90 degree eliminator catalytic o2 sensor bung tube check engine light bung catalytic converter fixed check engine lamp connector car sensor connector spacer adapter.

Catalytic converter 90 degree o2 oxygen sensor cel eliminator check engine light spacer catalytic converter Other Engine Parts. Supplier Types. Product Types. Ready to Ship. Car Fitment. Home catalyt catalytic for small engine catalytic for small engine. It is possible to insert attachment elements, such as rivets, through the holes into corresponding openings in the dividing wall 5 in order to fix the catalytic converter 7 , together with the flat layer 32 , securely to the dividing wall 5.

The attachment of the individual layers of sheet metal 19 can be carried out in a manner that is known per se. Thus, it is possible to braze or weld the layers to one another or to attach them in some other manner which is known per se. In addition, it is possible to attach the layers through the use of attachment elements, for example rivets or staples, or by spot welding or brazing, to the converter housing 6. Preferably, the points of attachment by brazing or soldering must be free of catalytically active coating.

The honeycomb bodies 12 which are discussed above may be surrounded by a casing. In FIG. Due to the use of the casing 38 , the honeycomb body 12 is constructed as a module which can be inserted into the converter housing 6 and it can be attached there in a detachable or nondetachable manner. This has the advantage of permitting honeycomb bodies to be prefabricated individually.

In this case the casing 38 may be a very thin piece of sheet metal which does not necessarily have to surround the entire outer surface of the honeycomb body either, as long as it is ensured that the pieces of sheet metal are held together in a dimensionally stable way. It is to be noted that any catalytic converter 7 may be provided with insulation material for thermal insulation. Furthermore, it is also possible to line the muffler housing 1 entirely or partially with insulation material 37 , as is indicated in FIG.

The present invention is particularly suitable for the simple manufacture of cost-effective catalytic converters for small engines emitting exhaust gas which contains considerable portions of hydrocarbons, at least some of which is to be removed catalytically and during which process other noxious substances such as carbon monoxide or nitrogen oxides, for example, can also be simultaneously reduced.

We claim: 1. In a small engine muffler housing including an upper housing component, a lower housing component and a dividing wall having at least one opening formed therein, a catalytic converter disposed on the dividing wall for cleaning exhaust gas, comprising:. The converter according to claim 1 , wherein said converter housing is attached to the dividing wall by spot welding. The converter according to claim 1 , wherein said converter housing is attached to the dividing wall by mechanical clamping.

The converter according to claim 1 , wherein said converter housing has at least one side wall and an end wall. The converter according to claim 1 , wherein said converter housing has one wall formed by the dividing wall. The converter according to claim 1 , wherein said honeycomb body has a given cross section, and said converter housing has a substantially rectangular cross section corresponding to said given cross section. The converter according to claim 1 , wherein said honeycomb body has a given cross section, and said converter housing has a substantially semicircular cross section corresponding to said given cross section.

The converter according to claim 1 , wherein said converter housing is formed of deep-drawn sheet metal. The converter according to claim 1 , wherein said converter housing has attachment webs engaging in corresponding openings formed in the dividing wall.

The converter according to claim 1 , wherein said layers of sheet metal are squeezed in said converter housing with plastic deformation. The converter according to claim 1 , including a casing around said honeycomb body. The converter according to claim 11 , wherein said layers of sheet metal are attached in said casing.

The converter according to claim 11 , wherein said casing is attached to at least one of the dividing wall and said converter housing. The converter according to claim 1 , wherein said layers of sheet metal are provided with a catalytically active surface layer before assembling the converter. The converter according to claim 1 , including a flat layer disposed within said layers of sheet metal, said flat layer having ends formed as wings disposed between said converter housing and the dividing wall.

The converter according to claim 1 , wherein said layers of sheet metal are wound. The converter according to claim 1 , wherein said layers of sheet metal are folded. The converter according to claim 1 , including an intermediate wall dividing said converter housing and said honeycomb body into two spaces, said two spaces fluidically connected to one another and the at least one opening in the dividing wall forming an inlet opening for the exhaust gas to be cleaned and an outlet opening for cleaned exhaust gas.

USB1 en. JPA en. KRB1 en. CNC en. BRA en. DEB4 en. FRB1 en. IDA en. MYA en. TWB en. WOA1 en. USB2 en. It has been customized to suit small engine applications.

One of the fundamental chemical reactions occurring in the catalyst can be written as follows:. Concentrations of pollutants in the exhaust gas depend on the fuel mixture composition. In order to achieve high simultaneous conversions of CO and NO x , their concentrations in the exhaust must be in stoichiometric proportion, as illustrated by the above equation.