252 patents
Page 8 of 13
Utility
Solenoid valve for hydraulic control device
26 Oct 20
A solenoid valve includes a solenoid portion that moves a pin to one axial side and a nozzle portion including a valve body connected to one axial side of the pin.
Dongming Chen, Tomohiko Nakanishi, Koichi Ishikawa, Yoshikatsu Goto
Filed: 19 Sep 18
Utility
Control device, control method, motor, and electric oil pump
19 Oct 20
A control device to control a motor includes a stator including a coil, a rotor including a permanent magnet, a detector that detects a rotational position of the rotor at every predetermined angle and outputs a position signal indicating the detected rotational position, and a controller that receives the position signal output by the detector and adjusts a duty ratio of a driving signal of the rotor by a pulse width modulation scheme based on the received position signal to control rotation of the rotor.
Kei Sato, Yuichi Hibi, Yasuhiro Shirai
Filed: 24 Sep 17
Utility
Pressure control device
12 Oct 20
The disclosure provides a pressure control device that improves the workability in assembling a body and a filter unit.
Takeshi Nakano, Yoshinori Yamaki, Tomohiro Yasuda, Weiming Chen, Kenta Kuramochi
Filed: 7 Aug 19
Utility
Solenoid device
12 Oct 20
A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing.
Kenta Kuramochi, Weiming Chen, Tomohiro Yasuda
Filed: 15 Jun 19
Utility
Electric actuator and rotation control mechanism
12 Oct 20
This disclosure provides an electric actuator and a rotation control mechanism.
Yutaka Uematsu, Jaehyun Kim, Toshiaki Nakamura, Shuichi Kinjo, Hiroshi Shirai
Filed: 25 Dec 18
Utility
Clutch Control Device
7 Oct 20
A clutch control device includes a pump to feed oil to a hydraulic clutch, an input side oil passage connecting an oil tank and the pump and through which oil sucked from the oil tank to the pump passes, and an output side oil passage connecting the pump and the hydraulic clutch and through which oil that is pressurized by the pump and is fed from the pump to the hydraulic clutch passes.
Takamitsu ETO, Fumiya SAGARA
Filed: 20 Jun 17
Utility
Pressure Detection Apparatus and Electric Hydraulic Pump That Houses Pressure Detection Apparatus
7 Oct 20
A pressure detection apparatus includes a base plate including a first surface, a second surface, and an opening, a pressure sensor disposed on the first surface so as to cover the opening of the base plate and outputting an electric signal according to a pressure of measured fluid inside the opening, a lead terminal electrically connected to the pressure sensor, a housing holding the base plate and the lead terminal and including an exposed portion in which a portion of the lead terminal is exposed, and a capacitor protecting the pressure sensor.
Yoshiyuki KOBAYASHI, Shigehiro KATAOKA, Yoshihiro KAMIMURA
Filed: 23 May 17
Utility
Electric actuator
5 Oct 20
There is provided an electric actuator in which a speed reduction mechanism and an output portion are disposed adjacent to each other in a radial direction in an opening portion of a housing main body, a cover member has a speed reduction mechanism cover which faces and surrounds the speed reduction mechanism, an output portion cover which faces and surrounds the output portion, and a constricted portion which connects the speed reduction mechanism cover and the output portion cover, the cover member is fixed to the housing main body by a plurality of caulking portions provided on a side wall portion, and, between two adjacent caulking portions interposing the constricted portion therebetween, one of the two caulking portions of the speed reduction mechanism cover is fixed toward a central axis of the speed reduction mechanism, and the other is fixed toward a central axis of the output portion.
Yutaka Uematsu, Kazumi Shinkai, Shun Kato, Shuichi Kinjo, Kohei Osuga, Tadayuki Hatsuda
Filed: 29 Mar 18
Utility
Actuator and Actuator Device
30 Sep 20
An actuator includes a control part, a first rotation sensor, and a second rotation sensor able to detect rotation of an output shaft.
Kazuhiro SAITO, Seiji HASHIMOTO, Agato UENO
Filed: 15 Feb 20
Utility
Electric Pump Device and Mounting Structure of Electric Pump
30 Sep 20
Provided is an electric pump device which includes a motor having a shaft extending along a first central axis, a pump portion driven by the motor, and a housing for housing the motor and the pump portion.
Hitoshi SAKAMOTO, Koji HIGUCHI, Kunihiro KAJITA, Tomokazu IKEDA
Filed: 17 Mar 20
Utility
Electric Oil Pump
30 Sep 20
In an electric oil pump, a motor includes a main body including a coil, bus bars electrically connected to lead wires of the coil, and a shaft including a portion on one side in an axial direction protruding from an end of the main body on the one side in the axial direction and connected to a pump, a control board includes a power supply input portion and a power supply output portion and is disposed in a posture in which any one of a first surface and a second surface of the control board lies in the axial direction, the power supply input portion is at an end portion of the control board on the other side in the axial direction, and bus bar terminals are disposed on one side of the main body in the axial direction.
Yoshiyuki KOBAYASHI, Shigehiro KATAOKA
Filed: 13 Feb 20
Utility
Electric Pump Device and Mounting Structure of Electric Pump
30 Sep 20
Provided is an electric pump device which includes a motor having a shaft extending along a first central axis, a pump portion driven by the motor, and a housing for housing the motor and the pump portion.
Hitoshi SAKAMOTO, Koji HIGUCHI, Kunihiro KAJITA, Tomokazu IKEDA
Filed: 17 Mar 20
Utility
Electric Oil Pump
30 Sep 20
A board surface of a control board is disposed on an outward side of a motor in a radial direction in a posture along an axial direction.
Shigehiro KATAOKA, Yoshiyuki KOBAYASHI
Filed: 13 Feb 20
Utility
Electric Pump Device and Attachment Structure of Electric Pump Device
30 Sep 20
An electric pump device includes a motor having a rotor and a stator portions, a pump portion and a housing.
Hitoshi SAKAMOTO, Koji HIGUCHI, Kunihiro KAJITA, Tomokazu IKEDA
Filed: 9 Mar 20
Utility
Electric Oil Pump
30 Sep 20
An electric oil pump includes a pump part; a motor driving the pump part and having a rotor, a stator, and a motor shaft; a housing housing the motor; a control board including a drive circuit controlling driving of the motor; and a sensor board equipped with a rotation sensor detecting a rotation angle of the rotor of the motor.
Yoshiyuki KOBAYASHI, Shigehiro KATAOKA
Filed: 24 Mar 20
Utility
Motor Control Device
30 Sep 20
A motor control device includes a first control unit performing feedback control on a motor with a command value; one or plural second control units performing feedback control on the motor with a limit value; a control switching unit selecting, based on a deviation between the limit value and a measured value, one of the first and the one or plural of second control units as control unit.
Kei SATO
Filed: 9 Mar 20
Utility
Circuit Substrate and Electric Oil Pump
30 Sep 20
An electric oil pump includes a control substrate including a reverse connection protection circuit to protect a circuit in the substrate, a first substrate wiring connected to a source terminal of a MOSFET in the reverse connection protection circuit, a second substrate wiring connected to a GND terminal, and a bypass circuit that causes a current to flow from the first substrate wiring to the second substrate wiring in a case in which an output voltage of the external power supply is equal to or greater than a predetermined value that is greater than a rated voltage, in which the predetermined value is a value that is smaller than a withstanding voltage between a gate and the source of the MOSFET.
Yusaku SEKI, Chisato SEKIGUCHI, Junichi TAKAO, Yasuaki KONAGAYA
Filed: 20 Feb 20
Utility
Recirculation Valve
23 Sep 20
A recirculation valve includes a first supported portion that closes a first opening when a valve body biased by a biasing member is moved to one side in the axial direction, the first supported portion opens the first opening when the valve body moves to the other side in the axial direction against a biasing force of the biasing member due to a negative pressure on a downstream side with respect to that on an upstream side, the valve body includes a first hole extending from an end portion on the other side in the axial direction to one side in the axial direction, and a valve body barrel portion includes a second hole that extends from a radially outward side thereof and reaches the first hole.
Tomohiko NAKANISHI
Filed: 13 Feb 20
Utility
Recirculation Valve
23 Sep 20
In a recirculation valve, a first support target portion receives a biasing force of a biasing member on a first stepped surface and moves to one side in an axial direction, such that a first opening is blocked.
Tomohiko NAKANISHI
Filed: 10 Mar 20
Utility
Reflux Valve
23 Sep 20
A reflux valve includes a first supported portion that plugs a first opening when a valve body biased by a biasing member moves to one side in an axial direction, the first supported portion opens the first opening when the valve body moves to the other side in the axial direction against a biasing force of the biasing member due to negative pressure applied to a downstream side relative to an upstream side, the valve body includes a first hole extending from an end on the other side in the axial direction to one side in the axial direction, a valve body portion includes a second hole extending from an outer side in a radial direction and reaching the first hole, and the valve body portion includes a third hole at a different position from the second hole in the axial direction.
Tomohiko NAKANISHI
Filed: 29 Jan 20