Aisin Seiki Kabushiki Kaisha

Tadayoshi Sato

Masanobu Matsusaka

Hirohisa Takano

Koji Nunami

Naoto Yumisashi

Yasushi Miura

Masahiro Mochizuki

Hiromitsu Ishihara

Kazuo Miyazato

Toshiyuki Kawabe

Shinichi Nakayama

Kentaroh Mochizuki

A fluid control valve facilitates a reduction in size while securing a valve closing force for shutting off the flow of a fluid. The fluid control valve includes a plate-shaped stationary yoke () in which a passage hole () for a fluid is provided and which has a valve seat () around the passage hole (), a magnetic valve disc () capable of controlling the flow rate of the fluid flowing through the passage hole () by coming into contact with and separating from the valve seat (), and an electromagnetic coil () that is attached to the stationary yoke (), with a coil axis (Y) extending in a direction different from a moving direction of the valve disc (), so as to generate a magnetic field in the stationary yoke () and cause the valve disc () to be attracted to the valve seat ().

Fluid control valve having yoke-supported core

A vehicular coolant control valve configured so that the opened state thereof can be switched between a state allowing a normal amount of fluid to pass and a state allowing a lesser amount of fluid to pass. The control valve includes a valve body having a magnetic body and controlling fluid flow, a valve seat constituting a fluid flow channel and coming into contact with the valve body to close the flow channel, a solenoid magnetically maintaining a contact state between the valve body and valve seat, and an urging mechanism urging the valve body opposite to a flow direction of the fluid. The valve body includes a first valve body maintaining a contact state with the valve seat when the solenoid is excited and a second valve body allowing passage of a small amount of the fluid when the first valve body is in contact with the valve seat.

Vehicular coolant control valve

A vehicle cooling device includes a pump, circulation paths connected to the pump for circulating coolant between a cooling object and a heat exchanger, a solenoid valve for opening and closing at least one of the circulation paths, and a control unit for controlling pump operation. The solenoid valve includes a valve body movable between a position separated from a valve seat and a position abutting the valve seat, the valve body being held in abutment with the valve seat, and a solenoid maintaining the abutment when energized. The valve body allows coolant fluid pressure to move the valve body separate from the valve seat when the solenoid is not energized and the pump is in operation, and the control unit performs controlling to stop the pump and start solenoid energization when conditions are ready for stopping coolant circulation through the circulation path in which the solenoid valve is disposed.

Vehicle cooling device

An object is to provide a vehicle coolant control valve having excellent response, small size and weight, and low power consumption. A coolant stop valve (vehicle coolant control valve) valve comprises a valve body for controlling the flow of a fluid, the valve body having a magnetic body; a coil spring (urging device) for moving the valve body in the closing direction; a valve seat capable of coming in contact with the valve body; and a solenoid for moving the valve body in the closing direction; wherein the valve body is moved in the opening direction by fluid pressure of a fluid discharged from a water pump (pump) during operation of the water pump (pump), against the movement force of the coil spring (urging device) in the closing direction.

Vehicle coolant control valve

A fluid control valve includes an inflow channel for introducing fluid, an outflow channel for discharging the fluid, a valve seat, a valve body for blocking/allowing communication between the inflow channel and the outflow channel in association with a movement thereof into contact with or away from the valve seat, and a solenoid configured to apply a magnetic force to the valve body, the magnetic force being generated in response to supply of electric power to the solenoid. The inflow channel is formed through the core of the solenoid so that the core and the fluid comes into contact with each other in the inflow channel.

Fluid control valve

An engine cooling apparatus includes an engine for vehicle traveling, a pump driven by the engine, a heat exchanger, a circulation passage for circulating cooling liquid between the engine and the heat exchanger by driving the pump, a solenoid valve capable of opening/closing the circulation passage, and a controller for controlling operations of the engine. The solenoid valve includes a valve body movable between a position away from a valve seat and a position contacting the valve seat and held to contact the valve seat and a solenoid capable of maintaining contact between the valve body and the valve seat in response to supply of power thereto. When driving of the pump under a non-energized state of the solenoid, the valve body is movable to the position away from the valve seat by the cooling liquid fluid pressure.

Engine cooling apparatus

A valve operating mechanism includes a valve body provided at an air passage of an internal combustion engine, an actuator causing the valve body to rotate so as to adjust a cross-sectional area of the air passage, a shaft body supporting the valve body, a link member connected to the shaft body and integrally rotating with the valve body, an actuator rod rotatably connected to the link member and transmitting a driving force of the actuator to the link member, and a biasing member arranged between the link member and the actuator rod and biasing the link member and the actuator rod so as to contact each other.

Valve operating mechanism

A fuel-effusion prevention valve includes a first housing member having an evaporation passage, a first engaging portion and a first cylindrical portion, and a second housing member having a partition portion, a communicating passage, a second engaging portion and a second cylindrical portion. The first cylindrical portion is formed so as to extend axially from the first engaging portion, and its diameter is smaller than that of the second engaging portion. The second cylindrical portion is formed so as to extend axially from the second engaging portion. A floating valve is disposed in a chamber so as to be able to open and close the valve hole in response to its buoyancy due to fuel flowing into the second chamber through the communicating passage. The first cylindrical portion is fused with the second cylindrical portion. A circular seal member is fitted into an installation hole formed on the fuel tank and its inner hole is fitted onto the outer circumferential surface of the first cylindrical portion.

Growing community of inventors

Chita-gun, Japan

Tadayoshi Sato