V-Type engine intake with vibration isolated manifold connector
AssigneeGeneral Motors Corporation
InventorsHarry S. Ford, Jr., Nshan Hamparian
Life of this patent
Estimating the term…
Abstract
The noise level of a V-type diesel engine is reduced by providing a multi-piece intake manifold system including a pair of separate intake manifolds mounted on the inside valley defining walls of the engine cylinder banks and joined by an air supplying manifold connector mounted on both manifolds with isolation mounting means that limit the transmission of noise creating vibrations to the connector and between the manifolds and their respective cylinder banks.
Claims5
In combination in a V-type engine having a pair of angularly disposed cylinder banks extending from a common crankcase and defining an intermediate valley,
- a pair of air intake manifolds secured one to each of said cylinder banks and spaced laterally from one another on opposite sides of the valley to deliver air charges to the engine cylinders,
- a manifold connector mounted upon and connecting with both said intake manifolds to carry charging air from a common supply to the manifolds, and
- isolation mounting means between said connector and said manifolds to limit the transmission of noise creating vibrations between the manifolds and cylinder banks and to the manifold connector, said isolation mounting means including resilient gaskets operatively disposed between each of said manifolds and said connector to seal the joints therebetween and isolated controlled compression securing means operatively connected between said connector and each associated manifold member and resiliently isolated from at least one of them, while retaining said connector on said manifolds with predetermined partial compression of said gaskets so as to provide complete resilient isolation of the connector from both the manifolds on which it is mounted.
In combination in a V-type engine having a pair of angularly disposed cylinder banks extending from a common crankcase and defining an intermediate valley,
- a pair of air intake manifolds secured one to each of said cylinder banks and spaced laterally from one another on opposite sides of the valley to deliver air charges to the engine cylinders,
- a manifold connector mounted upon and connecting with both said intake manifolds to carry charging air from a common supply to the manifolds and the associated cylinder banks, and
- isolation mounting means operatively effective between said connector and said cylinder banks to limit the transmission of noise creating vibrations between the cylinder banks and to the manifold connector, said isolation mounting means including resilient gaskets operatively disposed between each of said cylinder banks and said connector to seal joints therebetween and isolated controlled compression securing means operatively connected between said connector and each associated cylinder bank and resiliently isolated from at least one of them, while retaining said connector on said cylinder banks with predetermined partial compression of said gaskets so as to provide complete resilient isolation of the connector from both the cylinder banks on which it is operatively mounted.
In combination in a V-type engine having a pair of angularly disposed cylinder banks extending from a common crankcase and defining an intermediate valley,
- intake manifold means operatively secured to and connecting with both said cylinder banks to carry charging air from a common supply to cylinders in said cylinder banks, and
- isolation mounting means operatively connected between said manifold means and said cylinder banks to limit the transmission of noise creating vibrations between the cylinder banks and to the manifold means, said isolation mounting means including resilient vibration isolating gaskets operatively disposed between each of said cylinder banks and said manifold means to seal joints therebetween and isolated controlled compression securing means operatively connected between said manifold means and each associated cylinder bank and resiliently isolated from at least one of them, while operatively retaining said manifold means on said cylinder banks with predetermined partial compression of said gaskets so as to provide complete resilient isolation of the manifold means from both the cylinder banks on which it is operatively mounted.
Dependencies are inferred from the claim text.