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
Curable sublimation marking material and sublimation transfer process using same
Method for media access controlling and system and method for channel time reservation in distributed wireless personal area network
Grounding fitting
Digital photographing apparatus, method of controlling the same, and recording medium for the method
Software self-checking systems and methods
Compositions and methods for inhibition of MMP13:MMP-substrate interactions
Image forming apparatus having a primary transfer unit, a secondary transfer unit, and a direct transfer unit
  Randomly Featured Patents
Surgical jig
Low loss electrical steel strip
Toy with a smoke detector
Variable light source device for pointer-type meter
Tableted detergent, method of manufacture and use
Signal converting apparatus
Integrated method for creating a refreshable Web Query
Variable valve timing system and method for controlling the same
Method for seaming packed cans
Surveillance television camera