Invention of a charge Motion control valve apparatus
Publication Date: 2016-Mar-24
The IP.com Prior Art Database
The present invention relates to a charge motion control valve apparatus for throttling and swirling air flow into the intake valves of an internal combustion engine.
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INVENTION OF A CHARGE MOTION CONTROL VALVE APPARATUS TECHNICAL FIELD
 The present invention relates to a charge motion control valve apparatus for throttling and swirling air flow into the intake valves of an internal combustion engine.
BACKGROUND OF THE INVENTION
 The invention relates to a charge motion control valve (CMCV) apparatus as applied to the air intake system of an internal combustion engine. It is possible to improve engine performance and fuel economy of internal combustion engines by controlling the amount of gas turbulence, for example swirl and/or tumble), within the combustion chamber(s) of the engine. Even with properly configured fuel injectors, the use of a controlled turbulence may be effective in improving the air/fuel mixture within the combustion chamber, reducing emissions and improving engine performance.
 Prior art, US Patent 6,155,229 teaches a charge motion control valve arranged in the upper intake manifold; however it is desirable to instead position the CMCV apparatus relatively close to the intake valve ports on the engine so as to produce a more desirable swirling effect of gases entering the combustion chamber. CMCV assemblies located in the upper manifold are less able to provide this function.
 Another variation of a charge motion control valve system is disclosed in published US patent application 2008/0271697A1. This patent publication discloses a CMCV valve assembly installed into mating shell components arranged in the lower portion of an intake manifold system. In this application shaft bearings are provided in which O-rings are fitted over the bearings and the bearings are supported in vertical stubs having U-shaped head portions, adding components and cost to the assembly.
 Prior art CMCV apparatus require the use of additional fastener and sealing components to assemble the CMCV and seal between valve body chambers and the outside.
 It is therefore an object of the present invention to provide a CMCV apparatus which installs advantageously into the lower portion of the intake manifold system and further provides a simple solution for assembly of the CMCV apparatus with an innovative bearing and shell design.
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SUMMARY OF THE INVENTION
 The problems with the prior art approaches are overcome by providing a charge motion control apparatus of the present disclosure, arranged in the lower intake manifold in which the valve assembly includes dual component bearings having an outer elastomeric layer configured to be captured in the groove between the shells and a seal between the bearings and the shell or shells.
 According to at least one aspect of the invention, a charge motion control valve (CMCV) apparatus includes an upper shell having an upper sealing surface, a shell mating surface and at least one first gas flow passage extending through the upper shell between the upper sealing surface and the shell mating surface. The CM...