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
Endoscope apparatus
Method and apparatus for operating a storage device
Structure and method of T.sub.inv scaling for high .kappa. metal gate technology
Disposable injector with at least one tension hook
Providing pricing guidance for content items in publications
Method of manufacturing semiconductor device
Method of performing electrostatic discharge testing on a payment card
  Randomly Featured Patents
Canopy chair
Conveyor means using linear motor
Automatic tension regulating device for remote control wire
File-copying apparatus of portable storage media
Delta-8 desaturases and their use in making polyunsaturated fatty acids
Chair
Motorized lens ring adjustor for still camera lens
Device for determining the spatial distribution of radiation
Very large scale immobilized polymer synthesis using mechanically directed flow paths
Method, system and computer program product involving error thresholds