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Class 251/57 - Fluid link or column actuator


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter wherein the fluid pressure actuator for the
No. of patents: 168
Last issue date: 06/01/2010


1          
NumberTitleIssue Date
7726625Device, 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 least one transfer chamber by a fluid. The active connection causes th...
06/01/2010
7500648Fuel-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 piston, a slave piston, and a coupler volume formed in-between, the c...
03/10/2009
7360750Piezoelectric air valve and multiple-type piezoelectric air valve
The air valve includes a valve body for controlling operations to open and close the communication between an air pressure chamber and an air outlet, a piezoelectric element for generating driving force in the form of displacements, and a displacement enlarging mech...
04/22/2008
7332040Semiconductor manufacturing system having a vaporizer which efficiently vaporizes a liquid material
A vaporizer can efficiently vaporize a liquid material under a depressurized atmosphere. The liquid material is temporarily stored in a liquid storing chamber, and is supplied to a vaporizing chamber set in the depressurized atmosphere via a small aperture. An inlet...
02/19/2008
7325782Remotely activated manifold shut-off
A remotely activated shut-off for stopping a fluid flow in a fluid line by actuating an existing valve in fluid connection with the fluid line wherein the valve is within an existing valve body and includes an existing external element for the actuating of the valve...
02/05/2008
7318398Engine valve actuation system
An engine valve actuation system includes an engine valve moveable between a first position that blocks a flow of fluid and a second position that allows a flow of fluid. The system also includes a valve actuation assembly connected to move the engine valve between ...
01/15/2008
7310986Method for producing a compensation collar for an injection valve
The positioning of the actuating drive in a fuel injector with a piezoactor (2) that is screwed into the housing (1) of the fuel injector is performed by applying a voltage (U) to the piezoactor (2) that corresponds to a given idle stroke (h), a...
12/25/2007
7275522Method and apparatus for controlling a valve, and method and apparatus for controlling a pump-nozzle apparatus with the valve
A valve has a piezoelectric actuator with a valve element, a valve body and a valve seat. In order to control the valve, the valve element is moved into the valve seat from a position remote from the valve seat by means of a charging process at a prescribable first ...
10/02/2007
7275562Extensible spiral for flex circuit
A planar extensible structure in a flat planar flex circuit can be extended out of the plane of the circuit by a distance of more than the width of the structure to carry fluids, electrical signals or optical signals into and out of the circuit. The planar extensibl...
10/02/2007
7252578Apparatus for cylindrically grinding workpieces
An apparatus for cylindrically grinding workpieces includes a first holding tool (10) and a second holding tool (12). The first holding tool is configured for positioning pre-grinding workpieces (18). The first holding tool defines a first groov...
08/07/2007
7204211Arrangement 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 means (104,105) for biassing the poppet val...
04/17/2007
7201121Combustion engine including fluidically-driven engine valve actuator
Engines and methods of controlling an engine may involve one or more fluidically driven actuators associated with engine intake and/or exhaust valves. In some examples, the actuators may be placed in flow communication with high pressure fluid from one source and/or...
04/10/2007
7198202Differential 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 comprises a sealing member (27) for ...
04/03/2007
7194990Electro-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 volume as the actuation piston is urged away from a neutral. Chamber i...
03/27/2007
7175112Fuel injection valve
A fuel injection valve for internal combustion engines, with a housing that contains a moving valve element whose movement counter to the elastic force of a spring element controls the fuel supply to the combustion chamber of the engine. The spring element has the f...
02/13/2007
7175274Combination sunglasses and reading eyeglasses
An eyeglasses assembly includes an eyeglass frame, a temple member, a first lens and a second lens. The first lens is connected to the frame and is positioned to allow a wearer of the frame to look through the first lens. The second lens is moveably connected to the...
02/13/2007
7100895Travel-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 an elastomeric bellows-type member. In order to ensure sufficient stead...
09/05/2006
7089031Radio terminal with browser
A terminal for providing an application using a browser. The terminal comprises a transceiver arranged to send radio packets to and receive radio packets from a server, and means for determining if the terminal and server are able to communicate. The terminal furthe...
08/08/2006
7077377Device 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 translational chamber in a play-free manner. The translation chamber is fille...
07/18/2006
7073730Fuel injection valve
A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, including a piezoelectric or magnetostrictive actuator, actuates a valve-closure member formed on a valve needle via a hydraulic coupler, the valve-closure memb...
07/11/2006
7069887Engine valve actuation system
An engine valve actuation system is provided. An intake valve is moveable between a first position to prevent a flow of fluid and a second position to allow a flow of fluid. A cam assembly is connected to move the intake valve between the first position and the seco...
07/04/2006
7066399Fuel injector
A fuel injector for fuel-injection systems of internal combustion engines having a piezoelectric or magnetostrictive actuator, includes a hydraulic coupler which actuates a valve-closure member (3) formed on a valve needle. The valve-closure member cooperates...
06/27/2006
7059283System and method of retaining hydraulic fluid in a hydraulic valve actuation system
Methods and systems for retaining hydraulic fluid in a hydraulic valve actuation system adapted to be installed on an internal combustion engine are disclosed. The system may include a hydraulic fluid supply connected by one or more passages to a fluid accumulator a...
06/13/2006
7055796Valve, especially for hydraulic automotive brake systems
The present invention relates to a valve, especially for slip-controlled brake systems in automotive vehicles, with a valve tappet guided in a valve housing and including a valve closure member, with a valve seat facing the valve closure member, and with a piezoelec...
06/06/2006
7051991Control 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 which is compact in size, has low power consumption, and which is capab...
05/30/2006
7040550Fuel 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 hydraulic coupler having a master piston and a slave piston that are connect...
05/09/2006
7021602Valve, 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 connected to the valve actuator. A second control valve regulates fluid comm...
04/04/2006
7013877Pressure control valve, especially for high pressure diesel pumps of injection devices of motor vehicles
A pressure control valve for a high-pressure diesel pump of an injection device of a motor vehicle has a valve body and a piezo drive with a tappet securing the valve body in a closed position. The valve body in the closed position closes off a bore, containing a me...
03/21/2006
7011289Valve
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 valve is reciprocally displaced between open and ...
03/14/2006
7007860Plunger 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 fuel in the fuel cavity. However, under certain conditions, the plunge...
03/07/2006
6997433Electronic valve actuator having vibration cancellation
An electronically controlled valve actuator having an armature, a valve, and a coupler for coupling the actuator to the valve with motion of the armature in a first direction moving the second piston in a second direction. The actuator includes an electromagnet, an ...
02/14/2006
6975061Apparatus for moving a pair of opposing surfaces in response to an electrical activation
An apparatus for moving a pair of opposing surfaces in response to an electrical activation having a support including a rigid non-flexing portion, at least one pivotable arm portion extending from the rigid non-flexing portion, a pair of opposing surfaces with one ...
12/13/2005
6953157Fuel injection device for an internal combustion engine
The fuel injection system having one high-pressure fuel pump and one fuel injection valve for each engine cylinder in which the pump piston defines a work chamber, which communicates with a pressure chamber of the fuel injection valve. A control valve controls conne...
10/11/2005
6948463Cylinder 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 are operable by electrohydraulic valve actuators, some of which gas exc...
09/27/2005
6948667Fuel injector
A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, having a piezoelectric or magnetostrictive actuator, has a coupler with a master piston and a slave piston which are connected to a pressure chamber. The pressu...
09/27/2005
6934976Toilet flusher with novel valves and controls
A tank-type flusher includes an intake valve, i.e., a fill valve, a diaphragm-operated flush valve, and a pressure control mechanism. The intake valve is connected to an external water source and is constructed to close water flow to a water storage tank at about a ...
08/30/2005
6932278Fuel injection valve
A fuel injector for the direct injection of fuel into the combustion chamber of a mixture-compressing internal combustion engine having external ignition includes a piezoelectric or magnetostrictive actuator and a valve needle, which, via a compensation element, is ...
08/23/2005
6924586Uni-body piezoelectric motor
An apparatus according to the present invention includes a support structure having a primary portion with first and second arm portions formed thereon for movement relative to one another, and a secondary portion with either a clamp portion or valve portion integra...
08/02/2005
6913240Electrohydraulic 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 hydraulic fluid. The housing is coupled to the actuator such that a path for...
07/05/2005
6843464Valve 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 guided in a valve body and actuates a valve closing body, which valve clo...
01/18/2005
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