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US 6,637,397 B2Granted
Intake manifold for an engine
AssigneeBorgWarner Inc.
InventorsLyle Ward, Kevin Beach, Mike Ruthenberg, Michael Jones
Life of this patent
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Abstract
The present invention relates to a modified intake manifold having short runner valves in the manifold tuning valve. Anti-chatter devices are disclosed for reducing shaft chatter without placing friction on the shafts. A lost motion linkage is used to ensure closure of the short runner valves. Radiused seating surfaces are used for seating of the manifold tuning valve.
Claims9
An intake manifold for a vehicle, comprising:
- an intake housing having a plurality of short runner valves for metering air intake;
- said short runner valves being attached to at least a pair of shafts for opening and closing said plurality of short runner valves substantially in unison;
- and
- a linkage connecting said shafts for synchronized movement therebetween;
- said linkage including a lost motion device such that said valves continue to be closed after a valve attached to one of said shafts has reached a closed position, wherein said lost motion device comprises a biasable member operably connected with said linkage to provide continued travel of said valves.
2 more elements
An intake manifold for an engine comprising:
- an intake plenum including a manifold tuning valve orifice for receiving a manifold tuning valve;
- and
- a manifold tuning valve operatively coupled with said orifice;
- said tuning valve having a valve plate for selectively tuning the airflow into said orifice;
- said valve plate including at least an outer peripheral sealing surface;
- said orifice including seating surfaces formed thereon for engaging said outer peripheral sealing surface of said valve plate, wherein said seating surfaces have a radius offset from the pivot point of said valve plate.
3 more elements
Dependencies are inferred from the claim text.