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7387094 |
Electromagnetically driven valve
An electromagnetically driven valve that is driven by the combined action of electromagnetic force and elastic force includes first and second valve elements that have valve shafts and move in...
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7370614 |
Electromagnetically driven valve
An electromagnetically driven valve includes a driven valve having a stem and carrying out reciprocating motion along a direction in which the stem extends, a disc support base having an abutment...
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7367296 |
Bi-directional power electronics circuit for electromechanical valve actuator of an internal combustion engine
A bi-directional dual coil half bridge converter adapted to be coupled to a dual coil actuator of a cylinder valve in an internal combustion engine is described. In one example, the converter has a...
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7363942 |
Continuous automatic control and distributor valve, with a magnetic seal
A valve which is composed of: —A seal consisting of two identical ferromagnetic discs ( 1 ), which enclose another smaller-diameter disc ( 2 ) and a permanent magnet, the rims ( 3 ) of the outer...
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7360750 |
Piezoelectric 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...
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7320338 |
Microvalve package assembly
A microvalve assembly that can help protect a microvalve or an assembly of microvalves from the environment. Such a microvalve assembly may be mechanically assembled, without the use of adhesives...
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7316382 |
Controlling electromotive actuators
The invention relates to an electromotive actuator and a corresponding circuit in order to replace a pneumatical actuator system in a simple manner by an electric system.
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7305943 |
Electromagnet assembly for electromechanical valve actuators
An electromechanical valve actuator including an electromagnet interconnected with a housing end portion and an electric coil disposed adjacent said electromagnet. The electromagnet includes a...
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7305942 |
Electromechanical valve actuator
An electromechanical valve actuator with an armature stem guidance system that ensures that the armature stem stays aligned with the valve stem during operation. The stem guidance system may also...
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7299818 |
Integrated microvalve and method for manufacturing a microvalve
An integrated microvalve has a substrate, a first function layer applied to the substrate, and a second function layer applied to the first function layer, the first function layer being designed...
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7284370 |
Positioning control apparatus
A positioning control apparatus includes a position detector 102 which detects the position of a positioning object 101 , a target position generator 103 which generates a target position...
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7255074 |
Linear EMV actuator using permanent magnet and electromagnet
A linear EMV actuator uses a permanent magnet and an electromagnet in which EMV operation for opening/closing an exhaust valve and an intake valve makes valve operations linear. As a result, the...
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7252053 |
Electromagnetic actuator and control
An electromagnetic actuator includes a stator assembly mounted to a center pole formed of material having high magnetic permeability and functions as a return path for the magnetic field generated...
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7244235 |
Split-night sleep diagnostic system
A split-night sleep diagnostic system is provided for diagnosing and treating sleep apnea in a single night. The diagnostic system includes a blower, a respiratory interface and a conduit connected...
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7243623 |
Velocity control of exhaust valve actuation
An exhaust valve assembly includes a valve body supported on a shaft for rotation within an exhaust component. The shaft is coupled to a solenoid with a linkage assembly. A controller controls the...
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7232109 |
Electrostatic valves for microfluidic devices
Valve structures formed in elastomer material are electrostatically actuated by applying voltage to a flexible, electrically conductive wire pattern. An actuation force generated between the...
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7225770 |
Electromagnetic actuator having inherently decelerating actuation between limits
An electromagnetic valve actuator system for controlling the operation of a valve in an internal combustion engine comprising a valve having a valve stem with a valve head at one end. The valve is...
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7217351 |
Valve for controlling flow of a fluid
A valve for controlling flow of a primary fluid in a primary flow channel comprises a valve fluid channel, and a membrane of a porous dielectric material located in the channel so as to divide the...
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7216843 |
Pilot-controlled electromagnetic valve system
A pilot-controlled electromagnetic valve system has an electromagnetic valve block mounted on the top of a manifold block. A bearing surface is formed on the top of the electromagnetic valve block...
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7210666 |
Fluid ejection device with inner and outer arms
A microelectromechanical fluid ejection device, comprising a mechanical actuator ( 28 ), an outer arm portion ( 31 ) and an inner arm portion ( 32 ), the actuator ( 28 ) being displaceable upon...
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7195393 |
Micro fluidic valves, agitators, and pumps and methods thereof
A valve which has a structure with at least one opening and a member which has a fixed static charge and also has a first position exposing the opening and a second position sealing the opening. A...
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7192005 |
Control method and controller for a solenoid-operated electrohydraulic control valve
A method and system for controlling a solenoid-operated pressure regulator valve to achieve high compliance with respect to a commanded current in accordance with a precalibrated transfer function....
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7192001 |
Thermopneumatic microvalve
A microvalve device includes a semiconductor-based valve housing that defines a flow passage, and a valve face disposed within the valve housing and in fluid communication with the flow passage....
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7188822 |
Enclosures for automatic bathroom flushers
A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the...
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7188592 |
Position sensor of a valve actuator for an internal combustion engine
A sensor of the position of a target is secured to an electromagnetic or electromechanical valve actuator of an internal combustion engine. The target is driven by a reciprocating translatory...
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7177725 |
System for the monitor and control of rest rooms
The present invention is directed to a rest room control system including one or more sensors configured to monitor or control a function associated with the rest room. The system also includes a...
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7174866 |
Direct pressure feed air bleed system
A manifold assembly includes a pressure feed orifice that directly connects an inlet circuit to a control circuit of the manifold. This direct connection between the pressure inlet to the control...
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7168675 |
Media isolated electrostatically actuated valve
A valve structure having a top part, a flexible media conveyance, such as a tube, a diaphragm and a bottom part with a support for the tube. The top surface of the diaphragm and the bottom surface...
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7162982 |
Hydraulic valve actuator for reciprocating engine
A hydraulic valve actuator for reciprocating engine includes at least a hydraulic cylinder ( 3 ) for opening at least one valve ( 2 ) via at least one valve opening selector ( 11 ) with at least...
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7156057 |
Electromagnetic actuator for controlling a valve of an internal combustion engine and internal combustion engine equipped with such an actuator
The present invention pertains to an electromechanical actuator controlling a valve of an internal combustion engine by means of a first magnetic field, generated in a variable manner by an...
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7152558 |
Electromechanical valve actuator assembly
A lever electromechanical valve actuator assembly and arrangement of electromechanical valve actuators that creates a compact actuator assembly to increase ease of serviceability, provide space for...
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7146944 |
Valve timing controller
The valve timing controller is driven by a motor. The valve controller has a control circuit and a driving circuit. The driving circuit receives a control signal generated by the control circuit...
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7131630 |
Electromagnet
The invention relates to an electromagnet for actuating a valve. To this end, the electromagnet ( 28 ) comprises an armature ( 58 ), which can be axially displaced in an armature space ( 57, 77 )...
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7128093 |
MEMS fluid ejection device configured for detecting a fault condition
A microelectromechanical fluid ejection device configured for detecting a fault condition is provided. The device comprises a mechanical actuator, drive circuitry and a switch device. The actuator...
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7128032 |
Electromagnetic actuator and control
An electromagnetic actuator includes a stator assembly mounted to a center pole formed of material having high magnetic permeability and functions as a return path for the magnetic field generated...
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7111595 |
Electromechanical valve control actuator for internal combustion engines
A valve actuator for internal combustion engines, includes at least one electromagnet and a magnetic plate, whose movement controls the displacement of the valve. The parameters of the...
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7107945 |
Electromagnetically driven valve control system and method
In an electromagnetically driven valve control system, it is determined whether an electromagnetically driven valve is in an attraction period at which a valve body is displaced. When it is...
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7104254 |
Throttle control apparatus having plate-shaped inner connecting member
A throttle body of an electrically controlled throttle apparatus is constructed with a bore wall part, a motor housing part receiving a heavy component such as a motor and a connecting member that...
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7097150 |
Electromechanical valve control actuator for internal combustion engines and internal combustion engine equipped with such an actuator
An electromechanical valve control actuator for internal combustion engines, includes an electromagnet with a magnet and a mobile magnetic plate moving into the vicinity of the electromagnet. The...
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7089895 |
Valve operation in an internal combustion engine
An apparatus and method for operating a plurality of valves in an engine uses valve actuators to move each valve. Accelerometers are used to detect acceleration of the valves and particularly the...
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7089086 |
Method, system and storage medium for performing online valve diagnostics
Methods and systems for performing online valve diagnostics. Valve characteristics such as step response, friction and spring range are determined while the valve is operating in a process without...
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7073770 |
Electromagnetic valve
Provided is an electromagnetic valve improved in terms of the sealing property of a shut-off valve with respect to a valve seat. An electromagnetic valve according to the present invention...
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7073524 |
Fail safe drive for control of multiple solenoid coils
A fail-safe apparatus for controlling fluid flow through a series arrangement of first and second solenoid-controlled valves is provided. The fail-safe apparatus includes fail-safe circuitry for...
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7063268 |
Electro-active fluid cooling system
Embodiments of the invention provide one or more valves in which an electroactive material acts to open or close the valves to increase efficiency of a pump, which may be a pump that uses an...
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7055797 |
Micro-actuator, fabrication method thereof, and micro-actuating valve
Disclosed are a micro-actuator, a fabrication method thereof, and a micro-actuating valve. The micro-actuating valve comprises: a first valve housing having a fluid entrance at the middle portion...
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7055539 |
Electromagnetic valve control device and method
A normally closed electromagnetic valve is closed again after temporarily being opened during an abnormality check of the valve. When the valve is opened, electricity is supplied so that a plunger...
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7051687 |
Valve operation controller
A valve operation controller for an internal combustion engine is provided for optimally setting a valve opening timing and a valve closing timing for an intake valve in accordance with an...
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7036490 |
Elastomeric vapor flow control actuator
A canister purge valve for regulating fuel vapor flow between a fuel vapor collection canister and an intake manifold of an internal combustion engine. The canister purge valve includes a body...
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7014165 |
Flow control valve and flow control valve apparatus using the same
A flow control valve apparatus using a flow control valve manufactured via micro-machining is provided. The flow control valve has a substrate defining at least one orifice through which a fluid...
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7011053 |
Controller for controlling opening and closing of an intake valve of an engine
A controller supplies a predetermined constant current as a drive current to an electromagnetic actuator in response to detection of a non-normal state including an abnormal signal system and an...
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