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
Door-activated entry light fixture
Cucumber plants with a compact growing habit
Method of manufacturing semiconductor device
Late loading rich media
Specimen preparation device, and control method in specimen preparation device
Organic light emitting diode device and fabrication method thereof
Hybrid asynchronous transmission process
  Randomly Featured Patents
Tracking-resistant electrical insulators containing silica and alumina filler in a polyester resin matrix
Electrical connector
Copying machine with a variable magnification device
Intake system for internal combustion engines
Condition detection and notification systems and methods
Non-tumorigenic cell lines for expression of genes
Ball-threaded shaft anti-slipout type linear actuator
Methods for making microporous products
Clock body
Hanging container for rooting plants