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Match Document Document Title
9004444 Device for the hydropneumatic control of a valve with a pneumatic locking means  
Valve control device includes a body with a longitudinal axis, a control member housed at least partially in the body in a bottom portion along the longitudinal axis, a piston movable along the...
8794588 High pressure actuator regulating valve  
An actuator regulating valve apparatus comprising an actuator assembly operably installed within a valve body assembly, a bellows assembly operably installed adjacent to the actuator assembly, a...
8678302 Injection device  
An injection device for injecting a medium, including a valve arrangement with a valve member forming a seal at a valve seat, wherein the valve arrangement is arranged in the medium to be...
8439069 Air release valve  
A valve assembly is provided that is suitable for use as an air release valve. The valve mechanism is actuated by liquid forced through an orifice by a diaphragm under pressure from the main...
8403294 Electrostatic actuation for management of flow in micro-total analysis systems (μ-TAS) and related method thereof  
In an example, an apparatus, such as a microfluidic assembly, can include or can include using a channel including a valve seat, a valve film configured to adjust position with respect to the...
8261777 Duck beak valve  
A duck beak valve and/or pumps/pump systems that use such a valve are disclosed. The valve may include a flexible tube having an inlet portion and an outlet portion and a spigot having a spigot...
8056881 Electrostatic actuation for management of flow in micro-total analysis systems (μ-TAS) and related method thereof  
The present invention relates to microfluidic devices, and in particular, flow management in such devices. In particular, the present invention provides an electrostatic valve for flow...
7992810 Fuel injector with coupler  
The invention relates to a fuel injector having a coupler. The reciprocating movement of an actuator is transmitted by the coupler to a pin-shaped injection valve member which is guided into the...
7856333 Method for commissioning actuators  
The disclosure relates to a method for commissioning pneumatically operated actuators that are controlled by a positioner. To determine the drive type, a constant flow of pneumatic fluid is...
7832431 Valves and pumps  
A check valve (10) comprises, a flexible tube (11) having first and second end portions defining an inlet (13) and an outlet (14), respectively, and a rigid valve body (12) surrounding the...
7726625 Device, method for producing the device, chamber device and transfer device  
A transfer device for transferring an actuator displacement, has a housing with a first recess having a first and second plunger displaceably mounted. These plungers are actively connected via at...
7669783 Metering valve with a hydraulic transmission element  
The invention relates to an injection valve which has a piezo actuator that is functionally connected to a nozzle needle by a hydraulic transmission device. The hydraulic transmission device is...
7510013 Hydraulic metering valve for operation of downhole tools  
Methods and systems for operating a sliding sleeve valve or other downhole well tool that is axially shiftable among a finite number of increments between two extreme configurations such as open...
7500648 Fuel-injection valve  
A fuel injector has a piezoelectric or magnetostrictive actuator, which actuates a valve-closure member cooperating with a valve-seat surface a sealing seat. An hydraulic coupler includes a master...
7204211 Arrangement of an internal combustion engine poppet valve and an actuator therefor  
The present invention (with reference to FIG. 1) is an arrangement of an internal combustion engine poppet valve and a hydraulic actuator therefor comprising: an actuator housing (16); spring...
7198202 Differential expansion absorption mechanism and fuel injection valve comprising same  
The present invention provides a fuel injection valve which moves a needle valve (10) via a viscous fluid and a piston (7) by having an actuator (9) move a cylinder (3). The fuel injection valve...
7194990 Electro-hydraulic engine valve actuation  
Hydraulic actuator as an element of a system for controlling an engine valve is presented. The actuator includes a fluidic actuation chamber, defined by an actuation piston that increases chamber...
7100895 Travel-transmitting element for an injection valve  
Disclosed is a travel-transmitting element for an injection valve, comprising a pressure-loaded storage chamber which is filled with a hydraulic fluid and a storage element that is provided with...
7077377 Device for the translation of a displacement of an actuator, in particular for an injection valve  
A device, for the translation of a displacement of an actuator, in particular for an injection valve, essentially comprises two counter-displaceable pistons, coupled together by means of a...
7051991 Control valve  
An actuator operated by a solenoid and a force amplifying means utilizing hydraulic pressure are used in combination with a diaphragm, to thereby provide a diaphragm valve made of Teflon™, and...
7040550 Fuel injection valve  
A fuel injector for the direct injection of fuel into the combustion chamber of an internal combustion engine includes a piezoelectric or magnetostrictive actuator, a hydraulic coupler, the...
7021602 Valve, actuator and control system therefor  
A hydraulic control system for a valve actuator comprising a first control valve that regulates fluid communication from a fluid pressure source to a first fluid supply tank that is fluidly...
7011289 Valve  
A sliding spool valve (1) is provided for controlling flow of fluid especially between an inlet (2) at a relatively high pressure and an outlet (6) at a relatively low pressure. Wherein the spool...
7007860 Plunger cavity pressure control for a hydraulically-actuated fuel injector  
A fuel injector in an engine includes a spring cavity, a piston, a plunger, a spring, a fuel cavity, and a stop plate. The piston is hydraulically controlled to force the plunger down to compress...
6948463 Cylinder head  
A cylinder head for a combustion cylinder of an internal combustion engine is provided, which has at least one inlet opening and at least one outlet opening, as well as gas exchange valves which...
6913240 Electrohydraulic control unit  
An electrohydraulic control unit for operating an actuator of a hydraulically controllable device is disclosed. The electrohydraulic control unit comprises a housing including a chamber for...
6843464 Valve for controlling liquids  
A valve for controlling fluids, having a piezoelectric actuator unit for actuating a valve member is proposed, which has at least one adjusting piston and at least one actuating piston that is...
6832749 Valve for controlling fluids  
The present invention relates to a valve for controlling fluids, which has a piezoelectric actuator that is disposed in an actuator bore. A hydraulic booster and a bellows are also provided. The...
6811133 Hydraulically amplified PZT mems actuator  
A hydraulically amplified microelectromechanical systems actuator. A piece of piezoelectric material or stacked piezo bimorph is bonded or deposited as a thin film. The piece is operatively...
6805329 Valve for controlling fluids  
A valve for controlling fluids for reservoir injection systems, includes a hydraulic coupler and a piezoelectric actuator. The hydraulic coupler includes a first piston, a second piston, and a...
6805302 Injector for controlling fluids  
An injector for controlling fluids has a piezoelectric actuator and a hydraulic pressure intensifier. The hydraulic pressure intensifier is composed of a first piston, a second piston and a...
6766965 Twin tube hydraulic compensator for a fuel injector  
A fuel injector preferably has a body, a closure member, a piezoelectric device, and a hydraulic thermal compensator. The body extends along an axis. The closure member is displaceable with...
6719264 Valve for controlling fluids  
The invention relates to a valve for controlling fluids, having an actuator unit for actuating a valve member which has a first piston and a second piston, separated from it by a hydraulic...
6705544 Valve for controlling liquids  
A valve (1) for regulating fluids has a piezoelectric unit (4) for actuating a valve member (3). The valve member is embodied with a control piston (9), adjacent to the piezoelectric unit (4), and...
6655605 Valve for regulating fluids  
The invention relates to a valve for controlling fluids, having a piezoelectric unit (4) for actuating a valve member (3), with which a valve closing member (12) is associated that divides a...
6622985 Injection device, control valve and method for injecting fluid  
The invention concerns an injection device having a fluid port (10), a control valve (12), a setting element (14), by way of which a region of a first face (24) of the control valve (12) can be...
6588678 Injection system and method for operating an injection system  
The invention relates to an injection system having a piezoelectric adjuster (10), a hydraulic booster (12) and a control valve (14). In continuous operation of the injection system, the stroke of...
6547213 Valve for controlling liquids  
A valve for controlling fluids is described, wherein a valve closing member (13) divides a low-pressure region (16) in the valve (1) from a high-pressure region (17), and a filling device (19) is...
6530555 Valve for controlling fluids  
A valve (1) for controlling liquids is proposed, having a piezoelectric unit (3) for actuating a valve member (2), which member is axially displaceable in a bore (8) of a valve body (9) and on one...
6425145 Push button for metered flow  
By depressing a push button (13), a user deforms a flexible diaphragm (30) and thereby causes an incompressible fluid to flow from a first actuation-chamber segment (42) through openings (48) in a...
6371438 Control valve for an injector that injects fuel into a cylinder of an engine  
In a control valve for an injector, having a first and second valve bodies in which a valve seat is embodied in the first valve body. A control spool which is displaceably disposed in the first...
6290204 Valve including a step-up piston for controlling fluids  
A valve for controlling liquids for its actuation is provided with a liquid-filled coupling chamber, which is disposed between a step-up piston, actuatable by a piezoelectric actuator, and a...
6224032 Piezoelectric actuated valve with membrane chamber  
A valve for controlling fluids, which in order to be actuated, cooperates with a fluid-filled membrane actuator. A coupling chamber provided in the membrane actuator is sealed by two membranes as...
6192923 Electromagnetic flow control device  
An electromagnetic flow control device, or valve is provided. The valve uses two sets of stationary electromagnetic windings, with corresponding movable electromagnetic cores, which are completely...
6178996 Flow rate control apparatus  
An actuator utilizing the pressure of a gas is used to operate a diaphragm-operated control valve. An operating force generated by the actuator is varied by feeding and discharging a gas such as...
6168133 Piezoelectrically actuated fuel injection valve  
A valve for controlling liquids which for its actuation is provided with a liquid-filled coupling chamber, which is disposed between an actuator piston of a piezoelectric actuator and a piston...
6155532 Valve for controlling fluids  
A valve for controlling fluids, which is provided with a fluid-filled coupling chamber that is disposed between an actuator piston of a piezoelectric actuator and a piston that actuates a valve...
6142443 Valve for controlling fluids  
A valve for controlling fluids which, for its actuation, is provided with a fluid-filled coupling chamber which can be brought to high pressure by virtue of the fact that the valve is disposed...
6082629 Photoresist suck-back device in manufacturing system for semiconductor devices  
A photoresist suck-back device is shown for a photoresist supply apparatus in a semiconductor device manufacturing system which prevents the accumulation of photoresist inside a photoresist spray...
6076547 Device for operating a mechanism of a rinsing fixture  
The invention concerns a device for operating a mechanism (5) of a rinsing fixture, in particular for operating a closing and opening mechanism or a locking mechanism of a rinsing fixture. It...

Matches 1 - 50 out of 228 1 2 3 4 5 >