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
Negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same
Reconfigurable barrel shifter and rotator
Arrangements and method relating to communication bearers
Power converter with a variable reference voltage and inrush current limiting
Housekeeping cart
Method and system for Bluetooth low power link layer connection setup
Method for producing carrier on which microorganisms capable of conducting multiple parallel mineralization are immobilized, column reactor and solid medium for cultivating plants
  Randomly Featured Patents
Substituted naphthopyrans
Cap for the bed of a pickup truck
Backlight unit for liquid crystal display device
Audio fidelity amplifier and preamplifier systems
Low frequency filter in a monolithic integrated circuit
Mailbox mounting assembly
Method for treating or eliminating a parasitic disease
Antigen delivery system and method of production
Power feed for Ethernet telephones via Ethernet link
Method and apparatus for bone mineral measurement using a measurement region defined at a selected distance from a styloid bone tip