Switchable hydraulic lash adjuster with spherical locking pins

Details Switchable hydraulic lash adjuster with spherical locking pins Switchable hydraulic lash adjuster with spherical locking pins

Filed on

2011-08-09

Date issued

2011-08-09

Examiner

Eshete, Zelalem (Department: 3748)

Patent Class

Internal-combustion engines

SubClass

Poppet valve operating mechanism

SubSubClass

Tappet

Other Related Categories

C123S090480, C123S090160

Type

Reexamination Certificate

Status

active

Patent number

07992532

Description

ABSTRACT:
The switchable hydraulic lash adjuster uses balls that move radially in order to lock and unlock the switchable elements in the hydraulic lash adjuster. An axially movable piston acts on the ball to force it to engage and to allow it to disengage the inner housing.

REFERENCES:
patent: 6732687 (2004-05-01), Djordjevic

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