Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Flow control valve










Image Number 2 for United States Patent #5706849.

In a flow control valve, a valve spool is movable for variably controlling an opening area of a port portion of a drain passage so that a necessary flow rate of fluid is conducted from a first pressure chamber to an outlet passage through a control orifice while a surplus flow rate of fluid is returned from the first pressure chamber to the drain passage. A movable sleeve is installed in a valve spool accommodation hole and around the valve spool. The movable sleeve has through holes communicable with the drain passage and an inlet passage, respectively. The movable sleeve has a first axial end portion disposed in the first pressure chamber and a second axial end portion disposed in a low pressure chamber. A spring is disposed in the low pressure chamber for urging the movable sleeve toward the first pressure chamber side. The movable sleeve is movable relative to the valve spool in response to a variation of pressure in the first pressure chamber for varying the opening area of the port portion of the drain passage.








 
 
  Recently Added Patents
Mobile communication terminal provided with handsfree function and controlling method thereof
Digital rights management for media streams
Method of fabricating CIGS by selenization at high temperature
Method and apparatus for management and analysis of services in VoIP networks
Memory device, test operation method thereof, and system including the same
Rear body panel cover for a motor vehicle
Pixel structure of organic light emitting device
  Randomly Featured Patents
Facsimile apparatus with message-board function
Method for acoustic signal detection
Modular manufacturing chain including a utility transfer module and method of operation therefor
System and method for handling a production disturbance/opportunity event in a production execution system
Agricultural and construction utility blade
Sun shield system
Receive antenna interface for an RF transceiver
Glass fiber containing polymer sheet and process for preparing same
Combined transmitter and receiver for traffic control of emergency vehicles
Amino substituted hydroxyphenyl benzophenone derivatives