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| Number | Title | Issue Date |
| 7540299 | Apparatus and method for cooling a clutch of a motor vehicle A method and apparatus for cooling a clutch of a motor vehicle by controlling a valve through which a coolant circuit is coupled with a pump circuit. The valve includes a control piston that is movable at least to actuate a connection between the coolant circuit and... | 06/02/2009 |
| 7370630 | Engine with a plurality of operating modes including operation by compressed air The present invention relates (with reference to FIG. 1) to an internal combustion engine in which a combustion chamber (12) can be connected to a reservoir (16) for storing compressed air. Gas flow control valve means (15) controls flow ... | 05/13/2008 |
| 7246862 | Compressed air treatment device that is designed to be installed in an industrial vehicle A compressed air treatment device is designed to be installed in an industrial vehicle consisting of a motor vehicle that can pull a trailer. The device comprises a set of electropneumatic components that are controlled by an electronic command/control unit which is... | 07/24/2007 |
| 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 53 are l... | 12/12/2006 |
| 7080891 | Safety device for an automotive pneumatic system The invention relates to a safety device for an automotive pneumatic system, whereby a safety valve comprising a restoring element is provided. The invention also relates to a method which enables an automotive pneumatic system to operate in a safety mode. Component... | 07/25/2006 |
| 7036625 | Integrated hydraulic control system An integrated hydraulic control system includes a steering control unit and a priority flow divider integrated into a unitary casing. An interface fluidly couples the casing for the steering control unit and priority flow divider directly to a control valve casing. ... | 05/02/2006 |
| 7007588 | Device for adjusting the pressure in a hydraulic jack The invention relates to a device for adjusting the pressure in the chambers of a hydraulic jack comprising a hollow valve seat extending substantially longitudinally between two end sections, the body of the valve seat being connected to a source of pressurised flu... | 03/07/2006 |
| 7007708 | Flow control valve A valve mechanism to control fluid flow between a fluid pumping device and a system that includes an inlet from the fluid pumping device, a first valve, a second valve, a first outlet fluidly connected to the system, and a second outlet. The first valve prevents bac... | 03/07/2006 |
| 7000638 | Diverter valve with multiple valve seat rings A diverter valve includes a valve bore having a set of valve seats associated with each fluid outlet port. Each set of valve seats is at least partially separated from one another by a flow channel. The valve seat configuration increases the impact area for the valv... | 02/21/2006 |
| 6837047 | Hydraulic devices for smooth operations of hydrostatic transmission A hydraulic valve assembly, for use in a hydrostatic transmission, for controlling fluid transfer between a first, a second and a third line, wherein two of the lines define first and second pressure lines, within a closed-loop circuit. The valve assembly comprises:... | 01/04/2005 |
| 6758043 | Turbomachine injectors A fuel injector for a turbomachine engine, the injector comprising an injector body having pressurized fuel admission means, a first valve mounted downstream from the pressurized fuel admission means and arranged to admit fuel into the injector body, a second valve ... | 07/06/2004 |
| 6748965 | Double directional check valve and flow restrictor combination A double directional check valve and flow restrictor combination including a housing which contains a pair of axially-aligned check valves and a flow restrictor disposed between the check valves. Dry purge air flows into the housing through the flow restrictor, whic... | 06/15/2004 |
| 6725874 | Delayed triple pressure flow valve A delayed triple pressure flow valve for controlling the hydraulic fluid passing to two work stations. ... | 04/27/2004 |
| 6679281 | Switching device for a machine A switching device for a machine, especially a digger, has at least one supply connection and one useful connection in addition to at least one hydraulic accumulator. An on-off valve is arranged between the supply connection and the useful connection, and... | 01/20/2004 |
| 6672262 | Piston cooling nozzle A cooling nozzle in accordance with the invention cools the piston of an internal combustion engine. The nozzle includes a nozzle body with a penetrating part shaped to engage in a bore of the engine and to receive a cooling fluid. The nozzle includes an ... | 01/06/2004 |
| 6619311 | Microfluidic regulating device Microfluidic flow control devices are provided. In one embodiment, a regulating device includes overlapping channel segments separated by a deformable membrane in fluid communication with one another. Pressure differentials between the channel segments de... | 09/16/2003 |
| 6145535 | Air priority valve for a compressed air supply system A priority valve for a compressed air system in a tire retreading plant includes a solenoid controlled, diaphragm operated valve connected at an inlet to an autoclave. A solenoid controls whether the valve is opened or closed. A switch has a pressure sens... | 11/14/2000 |
| 6126818 | Filter system for the lubricant of an internal combustion engine A filter system, in particular for filtering the lubricant of an internal combustion engine, having at least two filter elements (19, 25) which can be connected successively to the oil circuit and a changeover valve (21) which feeds the oil to be cleaned ... | 10/03/2000 |
| 6092546 | Fuel flow divider and pressurizing valve for gas turbine A combination pressurizing valve (27) and fuel flow divider for a gas turbine is operable in three different fuel distribution modes utilizing three windows which are successively opened to control the flow distribution to the engine atomizing or start-up... | 07/25/2000 |
| 6041808 | Compressed air control device for a source of compressed air on motor vehicles A compressed air control device for a source of compressed air on motor vehicles, forming a unit of an electro-pneumatic unloader, an integrated electro-pneumatic multi-circuit control valve and an air-drier, comprising an inlet and an outlet provided in ... | 03/28/2000 |
| 5924432 | Dishwasher having a wash liquid recirculation system A dishwasher having a fluid recirculation system which operates in a wash mode for spraying liquid onto objects supported on dishwasher upper and lower racks. The dishwasher includes a pump having a pump impeller disposed within a pump chamber for supplyi... | 07/20/1999 |
| 5871338 | Vacuum pump with a gas ballast device The invention pertains to a vacuum pump (1) with a closable line (63, 102) through which gas ballast can be fed into the pump chamber (8, 9); to eliminate the danger that a recipient hooked up to the vacuum pump may be charged with air in the event of a p... | 02/16/1999 |
| 5765291 | Compressed-gas system with a gas drier A compressed gas system comprises a pressure generator and a consuming installation, a gas drier disposed between the pressure generator and the consuming installation, and an in-flow line connecting the pressure generator to the gas drier. Desirably, an ... | 06/16/1998 |
| 5732730 | Combined check valve and metering valve assembly A pressure-actuated valve of the type used in the fuel systems of gas turbine engines and the like combines the functions of check valve and metering valve in a housing forming a single assembly. A movable valve actuator is slidably movable along a centra... | 03/31/1998 |
| 5678900 | Unloader for a source of air under pressure on vehicles A compressed air unloader for unloading compressed air used in the compressed air braking and suspension circuits of a motor vehicle is disclosed. The unloader includes a housing with an internal air chamber, an air inlet for passing compressed air into t... | 10/21/1997 |
| 5564455 | Hydraulic circuit for automatic control of a horizontal boring machine A hydraulic circuit (10) is disclosed for use in controlling a horizontal boring machine which requires hydraulic fluid under pressure for rotating a drill bit or backreamer through a rotation circuit and hydraulic fluid under pressure for thrusting the d... | 10/15/1996 |
| 5546975 | Control device for a fluid passing through a bypass and system equipped with such a device to regulate the supercharging air of an internal combustion engine A device for controlling the circulation of a fluid through a fluid bypass (3) consists of an actuator (14) which is actuated pneumatically and directly by the fluid located in the bypass so as to close, at least partially, bypass outlet (3c) when the pre... | 08/20/1996 |
| 5307832 | Method and apparatus for automatically transferring and measuring wet steam between priority and secondary users A system by which a supplier of wet steam may allocate and measure the mass flow rate and quality of steam delivered to a demand user and one or more secondary users with the wet steam delivered to each user being measured for purposes of billing. Pressur... | 05/03/1994 |
| 5289843 | Hydraulic safety valve A hydraulic safety valve adapted to cut or divert the flow of pressurized fluid A hydrau/sudden rupture occurs in the hydraulic system. The valve has a valve body with an inlet port, first and second outlet ports and a sump port. A first valve member cont... | 03/01/1994 |
| 5286095 | Air brake emergency control valves Control valve assemblies for regulating the parking/emergency spring brakes of a tractor trailer air brake system which include valve components for insuring that the spring brakes are not released until pressurization of the system's service reservoir is... | 02/15/1994 |
| 5213131 | Vented mixing-type diverter faucet A diverter-type mixing valve has a body formed with a chamber having opposite ends, a mixed-water feed passage opening into the chamber between its ends, a faucet outlet port opening into the chamber at one end thereof, a vent port opening into the chambe... | 05/25/1993 |
| 5209255 | Accumulator loading valve An accumulator loading valve is provided which is adapted for elevated pressures, which requires but little space, and which has a pump connection (1), a reservoir connection (20), a priority valve (7) between the consumer connection and the accumulator c... | 05/11/1993 |
| 5172624 | Hydraulic device A hydraulic device is furnished for an automatic connection of the pressure means source, either preferably to the primary user or to the secondary user depending on the pressure in the circuit of the primary user. A switching valve can be actuated by way... | 12/22/1992 |
| 5135161 | Reduced noise trim air system Audio noise created by trim valves (66a-72a) in a warm air trim system (24) of an air cycle air conditioning system (10) is reduced by controlling the pressure drop across the trim valves as a function of the position of the valves (66a-72a). A proportion... | 08/04/1992 |
| 4953585 | Tub transfer-diverter valve with built-in vacuum breaker and back-flow preventer A transfer-diverter valve assembly is provided including vacuum breaker and back-flow prevention structure. The valve is formed as a single unit for mounting on the deck or flange of a tub, bath or similar fixture and is designed for ready installation as... | 09/04/1990 |
| 4883084 | Pressure fluid control system The supply of a pressure fluid to one or more outlets additional to a permanent outlet is controlled by the provision for the or each additional outlet of a pressure fluid circuit including sources of higher and lower reference pressure fluids and three c... | 11/28/1989 |
| 4867194 | Control system for alleviating shock in automatic transmission An accumulator designed to alleviate a so-called N-D select shock is connected in a hydraulic control system for an automatic transmission such that it can also alleviate a 3-4 shift shock. The accumulator includes a piston and a spring biasing the piston... | 09/19/1989 |
| 4817656 | Multi-port distribution valve with gear driven rotary distribution cylinders A fluid distribution apparatus includes an impeller-driven gear reduction mechanism and a plurality of outlet valves controlled in response to the gear reduction mechanism. Each valve includes a hollow stationary cylinder with an open top and an open bott... | 04/04/1989 |
| 4800906 | Washing apparatus A washing apparatus for providing a fluid such as hot water to either a spray nozzle or a dishwasher. A thermostatically controlled heated water storage tank supplies fluid to a piping system having a first branch and a second branch. The first branch is ... | 01/31/1989 |
| 4784320 | Metal hydride thermostat A thermostat (10) comprising a metal hydride (26) encased in a bellows (16) and a second bellows (20) encasing available hydrogen gas (32) to be adsorped and desorped by the metal hydride (26). The metal hydride (26) mechanically expands its encasing bell... | 11/15/1988 |
