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
Multi user MIMO detection utilizing averaged spatial whitening
Metal melting apparatus and method for melting metal
Handheld electronic device with text disambiguation employing advanced editing feature
Geo-coding images
Image forming apparatus assembled with a fixing member and a pressing member
Cellulose acylate laminate film, method for producing cellulose acylate laminate film, polarizer and liquid crystal display device
Visibility radio cap and network
  Randomly Featured Patents
Pressure control valve assembly for hydraulic circuit and automotive rear wheel steering system utilizing the same
Low latency and persistent data storage
Multidirectional mechanic hysteresis anti-seismic device for insulating the bases of constructional systems having high matual displacements
Sealing devices
System and method for locating resources in a distributed network
Arrow shaft end adaptor apparatus and balance pin apparatus and method
Probiotic Lactobacillus strains for improved vaginal health
Grain aeration systems and techniques
Active material for battery, non-aqueous electrolyte battery and battery pack
Massaging and relaxing device