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Match Document Document Title
8740316 Compressed air preparation device  
For a motor vehicle, a compressed air preparation device includes a pressure line configured to conduct compressed air, a drying device disposed in the pressure line, a governor valve coupled to...
8578967 Pressure regulating valve for aircraft engine  
The fluid pressure regulating valve is for use in an aircraft engine. The valve has at least a first fluid inlet, a first fluid outlet and a second fluid outlet. The valve comprises: a valve...
8517021 Vacuum demand valve  
A vacuum demand valve for controlling flow of exhalation gases from a patient to a vacuum line. The demand valve comprises: a housing having a housing inlet that allows exhalation gases to flow...
8499549 Exhaust gas control system and exhaust gas control method  
An exhaust gas control system and an exhaust gas control method are provided. The exhaust gas control system includes an exhaust gas throttle valve in an exhaust gas duct and an actuation device...
8118080 Control valve body of automatic transmission and manufacturing method therefor  
By pouring, by means of pressure, melted liquid of magnesium or magnesium alloy into a hollow portion which is formed using a casting mold, a valve body where a channel groove for hydraulic oil...
8096316 Valve systems for use with a fluid injector system  
A valve system for use in a system including a first source of a first pressurized fluid and a second source of a second pressurized fluid includes a valve housing including a first inlet port...
7726329 Discharge rate and pressure control solenoid valve  
The inventive discharge rate and pressure control solenoid valve (1) is used for a circuit consisting of a low pressure part and a high-pressure part and controls the discharge rate of a...
7146998 Hydraulic valve  
A stepped down groove 53 is provided around the peripheral surface of a rod portion 43 of a spool 40 which faces a third oil groove 33. Both the axial ends 53a and 53b of the stepped down groove...
6705339 Surge check unit for a liquid distribution system  
A safety check unit for use in a liquid distribution system for preventing damage to a pump and associated components of the system in event of loss in pumping pressure. The unit provides a check...
6273686 Apparatus and method for controlling a rated system pressure  
The rated system pressure in a pressure control system is adjusted through a pressure relief valve (2). In addition to the pressure relief valve (2), the system includes a check valve (4), a...
6196246 Freeze-resistant plumbing system in combination with a backflow preventer  
A plumbing system which, when ambient outdoor temperatures drop below freezing, circulates water to prevent it from freezing, utilizing a check valve to prevent water from flowing back into the...
6178998 Reverse flow prevention apparatus  
A reverse flow prevention apparatus is provided so as to drastically decrease pressure loss without installing an independent pressure regulator mechanism therein. With the reverse flow prevention...
5957148 Valve system having a deadman controlled actuating member in a vented chamber  
A main valve receives fluid at an inlet and transmits the fluid to an outlet. The main valve has a rear face. A surge control servo valve responds to a load sense signal and moves between a closed...
5950653 High pressure relief valve for use with a backflow preventer  
A backflow preventer assembly installed between a supply line and a service line, comprising one or more check valves and a high pressure relief valve operating to discharge water in the service...
5860442 Fluid pressure shutoff and relief valve  
A safety valve for a preventing over pressure in a fluid processing system utilizing a fluid pressure regulator in a fluid supply line upstream from the processing vessel is formed by a valve,...
5580817 Valve assembly  
A valve assembly for a discharge device, in particular a steering pump, including a flow control valve for controlling flow from the discharge device to an actuator, and a pressure-limiting valve,...
5549131 Automatic recirculation valve  
An automatic recirculation valve having a body portion, a central hub integral with said body portion and inlet, main outlet and recirculation outlets. A main valve element responsive to flow from...
5135020 Pressure sequence valve  
A pilot controlled sequence valve having a pilot valve and a main valve is provided. This sequence valve is preferably used for switching on and switching off a charging operation of a hydraulic...
5099871 Low friction proportional unloading valve  
A low friction proportional unloading valve mechanism for pressurized fluid circuits incorporating a valve housing forming primary and bypass fluid circuits. A normally closed unloading valve...
5065784 Valve assemblies and means  
An hydraulic valve assembly controls the supply of hydraulic fluid to an hydraulic strut of a vehicle suspension and is formed in a valve block having an hydraulic delivery line between a pump...
4848390 Switching valve having hydraulic self-holding properties  
Switching valve (1') with hydraulic self-holding properties, in which a s piston (11') having a closure piston element (15) connects or locks a pressure inlet (16') and a pressure outlet (17'), in...
4722359 Valve arrangement for high pressure pumps  
A relief valve for high pressure pumps is described which is characterized by its extremely compact construction and complete reliability against leakage. The relief valve has a valve ball in the...
4616672 Pressure relief and drain valve  
A pressure relief and drain valve includes a poppet valve on a valve body movable in a primary valve chamber between closed and open positions and spring biased to the closed position. A secondary...
4518004 Multifunction valve  
A valve combining in a single unit a multiplicity of functions including isolation, thermal and pressure relief, return check and bypass. The valve includes a pair of spool valves, one slidably...
4440189 Corrosive fluid two way check relief valve  
A check relief valve particularly suited for use with corrosive fluids includes a body having an input port and an output port connecting a fluid passageway therebetween. A ring spring is mounted...
4246924 Valve arrangement  
A valve arrangement is disclosed for controlling the supply of an operating fluid, having a casing with an inlet port, a main flow path provided with a non-return valve extending from the inlet...
4237918 Unloader and check valve  
A combined unloader and check valve for use with a motor driven air compressor (70) in which pressure trapped in the compressor head when the compressor is shut down is unloaded by means of an...
4057072 Unloader valve  
A valve housing has opposed inlet and outlet ports connected by a straight through first passageway. A one-way check valve is mounted in the passageway adjacent the outlet port. A bypass port...
3971397 Pump unloading valve device  
This invention relates to a pump unloader that includes two cylindrical valve members of the same diameter slidably mounted in the same bore and each biased in the same direction by its own...
3890996 Installation for filling several pressure reservoirs, especially in motor vehicles  
An installation for controlling the supply of fluid to a plurality of pressure reservoirs associated with respective vehicle fluid operating systems such as brake cycles, suspension systems, etc....
3848619 IMPROVEMENTS IN PRESSURE-RESPONSIVE HYDRAULIC CONTROL VALVE ASSEMBLIES  
In a pressure-responsive hydraulic control valve assembly means are provided for adjusting the force for closing the valve in opposition to opening pressure.
3834413 UNIVERSAL HIGH PRESSURE REGULATOR  
A universal high pressure air regulator which functions as a two stage constant running unloader and regulator when used in conjunction with a check valve, an excess air release and regulator...
3769791 FUEL SUPPLY SYSTEMS FOR GAS TURBINE ENGINES  
A fuel supply system for a gas turbine engine has a positive-displacement pump driven by the engine a valve downstream of the pump having an inlet and two outlets. A control element varies flow...
3599652 FLOW DIVIDER FOR THROTTLES  
A device is disclosed for reducing flow distortion in a fuel control throttle valve consisting essentially of a flow guide disposed within a throttle valve. The flow guide reduces the effects of...
3520321 VENTING VALVE FOR A BEVERAGE FILLER  
RE07333 Title is not available  
3451416 RELIEF VALVES  
3329153 Devices for maintaining the pressure in hydraulic circuits between two given values  
3283772 Backflow prevention device with improved pressure sensing means  
3270763 Pressure responsive valve  
3266426 Pump control  
3149555 Mixing and pumping apparatus  
3142259 Liquid pressure supply system  
3140722 Hydraulic unloader valves  
3114382 Backflow preventing valve  
3112757 Pressure control and unloader with air eliminator control button  
3068881 Make-up valve for air system  
3049141 Accumulator charging mechanism  
3017057 Liquid flow control system  
2997227 Unloader for rotary compressors  

Matches 1 - 50 out of 56 1 2 >