Cylinder deactivation apparatus incorporating a distributed...

Details Cylinder deactivation apparatus incorporating a distributed... Cylinder deactivation apparatus incorporating a distributed...

2006-03-14

2009-02-03

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090520, C123S090430

Reexamination Certificate

active

07484484

ABSTRACT:
A variable displacement internal combustion engine having a cylinder block and a cylinder head attached thereto. The variable displacement internal combustion engine includes at least one switching hydraulic lash adjuster. A lash adjuster oil feed passage is at least partially defined by one of the cylinder block and the cylinder head. The lash adjuster oil feed passage is operable to communicate pressurized oil to the at least one switching hydraulic lash adjuster. A distributed accumulator is disposed within the lash adjuster oil feed passage and operates to attenuate oil pressure spikes within the lash adjuster oil feed passage.

REFERENCES:
patent: 4584976 (1986-04-01), Hillebrand
patent: 4886022 (1989-12-01), Nakai
patent: 6755162 (2004-06-01), Marriott
patent: 1143120 (2001-10-01), None

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