Resources Contact Us Home
Multifunction valve for use in a hydraulic component

Image Number 5 for United States Patent #7451780.

A valve apparatus is disclosed for use in regulating the flow of fluid between a closed hydraulic loop and a fluid source in a hydraulic circuit, where the valve apparatus provides up to four different functions including a check valve, a neutral valve, a relief valve and a pressure rise rate valve. The apparatus includes a valve seat for selectively permitting fluid communication between the closed hydraulic loop and the fluid source, a sleeve member and a relief poppet in the valve seat, a relief compression spring inside the sleeve and positioned adjacent the relief poppet and the base of the slidable member, a valve guide and an accumulator piston slidably mounted within the valve guide to define an accumulator volume therein.

  Recently Added Patents
Methods for the production of aligned carbon nanotubes and nanostructured material containing the same
Method and apparatus for optimizing paging in a communication network
Tube lighting fixture
Encoding method, decoding method, encoding device, decoding device, program, and recording medium
Pet grooming brush and vacuum attachment
Signal routing dependent on a loading indicator of a mobile node
System and method for video encoding
  Randomly Featured Patents
Switch assembly
Method and apparatus for sending scheduling information for broadcast and multicast services in a cellular communication system
Method for generating concealment frames in communication system
Waste container with perforation band
Manifold-type solenoid valve with external port
Synchronization of multiphase synthetic ripple voltage regulator
Methods for maintaining laser performance at extreme temperatures
Keyboard having changeable decoration
Knee walker
Aqueous urethane polyol and coating composition containing the same