Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Aisin Tohoku Co., Ltd.

Masahiro Yoshida

Noboru Takagi

Hirotaka Watanabe

Takahiko Aoyagi

Rihito Kaneko

Masaaki Yamaguchi

Hirokazu Kato

Koji Nunami

Naoto Yumisashi

Masafumi Yoshida

Hirokazu Ando

Naoto Hisaminato

Toshiki Sato

Masaaki Kaneko

Kyosuke Mori

Yasushi Miura

Yuuki Ohta

Satoshi Kokubo

Motonobu Hasegawa

Shigeki Niimi

Yasuhisa Iwasaki

Yoshinobu Uchiyama

Akihiro Chiba

Takayuki Hosogi

Kazuhiro Matsukawa

Yasunobu Toyoda

Tomonori Tada

Hisayuki Ito

Hisashi Hashimoto

Kazuyoshi Shimatani

Hirosi Tachiki

Norikazu Tochizawa

Masahiro Suzuki

A cooling apparatus for an internal combustion engine includes a pump, a radiator, a flow rate adjustment valve, a bypass passage, and a controller. The flow rate adjustment valve includes a valve member that rotates to change an open degree of the flow rate adjustment valve and a valve member biasing component that biases the valve member in a valve-closing direction in which the open degree decreases. The valve member rotates in a valve-opening direction in which the open degree increases when a pressure difference increases between positions upstream and downstream of the valve member in a flow direction of coolant in the circulation circuit and rotate in the valve-closing direction when the pressure difference decreases. The controller increases the pump discharge amount as a target radiator flow rate that is a target of an amount of coolant passing through the radiator increases.

Cooling apparatus for internal combustion engine

A cooling apparatus includes a circulation circuit, a pump, a flow rate adjustment valve, and a controller. The flow rate adjustment valve includes a valve member that rotates to change an open degree of the flow rate adjustment valve and a stopper that moves between a restriction position and a retraction position. The controller is configured to execute, when maintaining the open degree of the flow rate adjustment, a preparatory process of moving the stopper to the restriction position after arranging the stopper at the retraction position and arranging the valve member further in the valve-closing direction than the stopper through control of the pump discharge amount.

A control device for an onboard engine is configured to control the oil discharge pressure of an oil pump and execute, when determining that there may be an abnormality in the control of the oil discharge pressure, a change process that increases the target discharge pressure to a value that is greater than that before it is determined that there may be an abnormality in the control. When a discharge pressure sensor value in a situation in which the discharge pressure is being controlled based on the target discharge pressure increased through execution of the change process does not become greater than or equal to a discharge pressure threshold, the control device sets an upper limit for the engine rotation speed and increases the upper limit as the discharge pressure sensor value increases.

Control device and control method for onboard engine

A flow passage device includes a circulation flow passage, a swing valve provided in the circulation flow passage, an energizing part, and a lock mechanism including a lock pin. The lock pin is configured so as to hinder the swing valve from opening, and to allow the swing valve to open. The swing valve is configured so as to rotate from a first valve position to a second valve position. The lock mechanism is configured so as to set a locked state and to set an unlocked state. The lock pin is configured so as to protrude as being energized by pressure of the fluid on an upstream side of the swing valve, and to retract as being energized by pressure of the fluid on a downstream side of the swing valve.

Flow passage device and engine cooling system

A valve timing control apparatus includes a driving-side rotating member, a driven-side rotating member, a fluid pressure chamber defined by the driving-side rotating member and the driven-side rotating member and divided into a retarded angle chamber and an advanced angle chamber by a parting portion, an angle detecting portion detecting a relative angle of the driven-side rotating member relative to the driving-side rotating member, a fluid control mechanism controlling a supply and a discharge of an operation fluid to and from the fluid pressure chamber, an acceleration operation quantity detecting mechanism detecting an acceleration operation quantity, and a control portion setting either a normal drive mode or an acceleration drive mode as a control mode relative to the fluid control mechanism based on the acceleration operation quantity, and controlling the fluid control mechanism so that the relative angle corresponds to a target angle determined based on the set control mode.

Valve timing control apparatus

A dog clutch for an automated transmission includes a rotary shaft, a clutch ring, a hub, a sleeve including a spline that includes a plurality of first teeth and second teeth, a whole depth of each of the first teeth being greater than a whole depth of each of the second teeth, a dog clutch portion including clutch forward teeth, the teeth number of clutch forward teeth being equal to the teeth number of first teeth, each of the clutch forward teeth being formed at a position facing each of the first teeth to extend from a front end surface to a rear end position of the dog clutch portion, the dog clutch portion including clutch rearward teeth engageable with tooth grooves formed at the spline and formed to extend from a position retracted by a first predetermined distance from the front end surface to the rear end position.

Dog clutch for automated transmission

A rotary solenoid for stabilizing performance is provided. A rotary solenoidincludes a pair of the first yokeand the second yokeplaced oppositely in a rotorproviding a pair of magnetic poles by a permanent magnet, a coreenclosed by the first yokeand the second yoke, and a coilwound around the coreand forming a pair of magnetic poles in the first yokeand the second yokeby supplying electricity. These first yoke, second yoke, core, and coilare resin-molded. A projecting portionis provided in an outer surface on the opposite side of enclosing the coreby the first yokeand the second yoke

Rotary solenoid

An electromagnetic valve comprises a case having a cylindrical portion, a yoke having a large diameter portion and a small diameter portion, and a sleeve having at least two ports and receiving a valve member therein so as to perform reciprocating motion. The large diameter portion of the yoke is fluid-tightly pressed into the inner circumferential surface of the cylindrical portion of the case, and the inner circumferential surface of the sleeve is fluid-tightly pressed onto the outer circumferential surface of the small diameter portion of the yoke.

Electromagnetic valve

Growing community of inventors

Toyota, Japan

Masahiro Yoshida