Resources Contact Us Home
Deactivation roller hydraulic valve lifter

Image Number 6 for United States Patent #6668776.

A deactivation hydraulic valve lifter includes an elongate lifter body having a substantially cylindrical inner wall. The inner wall defines at least one annular pin chamber therein. The lifter body has a first end configured for engaging a cam of an engine. An elongate pin housing includes a substantially cylindrical pin housing wall and pin housing bottom. The pin housing wall includes an inner surface and an outer surface. The pin housing bottom defines a radially directed pin bore therethrough. The pin housing is concentrically disposed within the inner wall of the lifter body such that the outer surface of the pin housing wall is adjacent to at least a portion of the inner wall of the lifter body. A deactivation pin assembly is disposed within the pin bore and includes two pin members. The pin members are biased radially outward relative to each other. A portion of each pin member is disposed within the annular pin chamber to thereby couple the lifter body to the pin housing. The pin members are configured for moving toward each other when the pin chamber is pressurized, thereby retracting the pin members from within the annular pin chamber and decoupling the lifter body from the pin housing.

  Recently Added Patents
Vaccination with killed but metabolically active (KBMA) protozoans with toll-like receptor agonists
System for and method of providing single sign-on (SSO) capability in an application publishing environment
Methods and systems for managing electronic messages
Process for the preparation of morphinane analogues
Polypeptide microparticles
Display apparatus having a semi-penetration layer and a sealing unit
Wireless refrigerant scale platform
  Randomly Featured Patents
Optically active 3-amino-2,5-dioxopyrrolidine-3-carboxylate, process for production of the compound, and use of the compound
Battery bottle
Insert-molded cover and method for manufacturing same
Configurable time borrowing flip-flops
Optical couplers for multimode fibers
Fitting for a vehicle seat
Airborne emitter/receiver arrays, and associated systems and methods
Apparatus for continuously preparing a syrup of a monomer-polymer mixture
Asymmetric dual directional steerable catheter sheath
Networked tags for tracking files and documents