Exhaust system of a combustion engine
First Claim
1. An exhaust system of a combustion engine comprising at least one exhaust manifold with a plurality of inlet pipes made of flexible material for connection to exhaust ports of the combustion engine and comprising a collector device for the merging of the inlet pipes which has one outlet opening which is connected to a subsequent catalytic converter housing, wherein the collector device is made as a one-piece collector housing of a material stiff in bending, and separate from the inlet pipes and from the subsequent housing of the catalytic converter including its inlet funnel, the flexible inlet pipes effective for permitting length compensation due to a different thermal expansion from the collector device made of stiff material, wherein an outlet pipe is connected to the outlet opening, the outlet pipe being made as a catalytic converter inflow pipe curved towards the catalytic converter.
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Accused Products
Abstract
An exhaust system for a combustion engine which comprises at least one exhaust manifold with a plurality of inlet pipes for connection to exhaust ports of the combustion engine. The exhaust system comprises a collector device for merging of the inlet pipes, which has one outlet opening. The outlet opening is connected to subsequent elements of the exhaust system, such as catalytic converter housing. The catalytic converter inflow pipe is guided up to just before the catalytic converter; and the catalytic converter housing is connected directly to the collector housing via a pipe surrounding the catalytic converter inflow pipe. The collector device is made as a one-piece collector housing of a material stiff in bending.
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Citations
22 Claims
- 1. An exhaust system of a combustion engine comprising at least one exhaust manifold with a plurality of inlet pipes made of flexible material for connection to exhaust ports of the combustion engine and comprising a collector device for the merging of the inlet pipes which has one outlet opening which is connected to a subsequent catalytic converter housing, wherein the collector device is made as a one-piece collector housing of a material stiff in bending, and separate from the inlet pipes and from the subsequent housing of the catalytic converter including its inlet funnel, the flexible inlet pipes effective for permitting length compensation due to a different thermal expansion from the collector device made of stiff material, wherein an outlet pipe is connected to the outlet opening, the outlet pipe being made as a catalytic converter inflow pipe curved towards the catalytic converter.
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22. An exhaust system of a combustion engine comprising at least one exhaust manifold with a plurality of inlet pipes made of flexible material for connection to exhaust ports of the combustion engine and comprising a collector device for the merging of the inlet pipes which has one outlet opening which is connected to a subsequent catalytic converter housing, wherein the collector device is made as a one-piece collector housing of a material stiff in bending, the collector housing having at least two apertures for the connection of inlet pipes, one outlet opening, and an aperture for the insertion of a lambda probe, the collector housing separate from the inlet pipes and from the subsequent housing of the catalytic converter including its inlet funnel, the flexible inlet pipes formed as single-walled pipes and effective for permitting length compensation due to a different thermal expansion from the collector device made of stiff material, wherein an outlet pipe is connected to the outlet opening, the outlet pipe being made as a catalytic converter inflow pipe curved towards the catalytic converter.
Specification