120 patents
Utility
Pump device including return passage for returning fluid from discharge passage to suction passage
9 Jan 24
A pump device includes a housing, a pump element, and an on-off valve.
Yasuhiro Ino
Filed: 12 Jan 23
Utility
Electromagnetic Actuator
4 Jan 24
An electromagnetic actuator includes a stator, a coil for excitation, a mover, a shaft of a single outer diameter, and a buffer unit.
Ryosuke DAKIISHI
Filed: 4 May 23
Utility
Pump Device
28 Dec 23
The pump device includes a housing defining insertion holes for a rotation shaft, inlets and outlets, and an internal passage; a first pump element; and a second pump element.
Yasuhiro INO
Filed: 10 Apr 23
Utility
Solenoid Actuator
30 Nov 23
A solenoid actuator 1 includes: a coil 3; a first stator 10 that includes a first yoke 14 and a cylindrical guide 30 fixed to an inner peripheral side of the first yoke 14; a second stator 20 arranged to face the first stator 10 in an axial direction so as to form a magnetic path 4 around the coil 3 together with the first stator 10; and a mover 50 configured to move in the axial direction toward the second stator 20 from an original position radially inward of the first stator by a magnetic force generated by energizing the coil 3.
Toshiki OGASAWARA, Hirofumi SAITO
Filed: 22 Mar 23
Utility
Solenoid Actuator and Method for Manufacturing Solenoid Actuator
30 Nov 23
A solenoid actuator 1 (1A, 1B) includes: a coil 3; a first stator 10 and a second stator 20 disposed with an air gap 11 therebetween in an axial direction so as to form a magnetic path 4 around the coil 3; and a mover 50 configured to move in the axial direction toward the second stator 20 from an original position radially inward of the first stator 10 by a magnetic force generated by energizing the coil 3.
Hirofumi SAITO
Filed: 22 Mar 23
Utility
Accelerator pedal device
28 Nov 23
An accelerator pedal device of the present invention includes: an accelerator pedal; a hysteresis generation mechanism that generates a hysteresis in pedal effort during a depression operation and a return operation of the accelerator pedal; a reaction force addition mechanism that adds a reaction force in a direction to push back the accelerator pedal; and a control unit that controls the drive of the reaction force addition mechanism in a manner that, with a predetermined target opening degree at which the accelerator pedal is depressed as a boundary, a ratio of change in the pedal effort in an opening degree range above the target opening degree becomes relatively larger than a ratio of change in pedal effort in an opening degree range below the target opening degree.
Jun Nagashima
Filed: 1 Feb 19
Utility
Coil Winding Portion Structure for Stator
16 Nov 23
In a motor unit that includes a stator including coils, a rotor, and an insulator attached to the stator, the insulator includes a bobbin portion around which a first coil wire or a second coil wire is wound, and a tubular portion provided outside the bobbin portion in a radial direction, terminals to which the first coil wire and the second coil wire are connected being mounted on the tubular portion, the tubular portion includes, at an upper end thereof between the coils and the terminals, base portions and guide portions receiving a load of the first coil wire or the second coil wire when the first coil wire or the second coil wire is wound in the coils such that the base portions and the guide portions are aligned in a circumferential direction.
Kan OYAMADA, Jun TAKAHASHI
Filed: 5 May 23
Utility
Fluid Control Valve Unit and Valve Timing Changing Device
26 Oct 23
A fluid control valve unit includes: a fluid control valve including a sleeve that defines an axis and a spool slidably disposed in the sleeve; a passage member including an inner peripheral surface to which the sleeve is fitted, passages, an annular receiving part facing one end of the sleeve, an opening adjacent to the annular receiving part, and an annular groove formed adjacent to the other end of the sleeve and recessed from the inner peripheral surface; a filter member including an elastic part sandwiched between the one end of the sleeve and the annular receiving part and exerting a biasing force in the axial direction; and a snap ring fitted in the annular groove for receiving the other end of the sleeve and detachably receiving the spool.
Kouji SUGANO
Filed: 4 Feb 23
Utility
Pump device with air introduction hole that opens into pump chamber at predetermined opening time immediately before suction stroke
24 Oct 23
The disclosure provides a pump device capable of suppressing hydraulic amplitude and reducing noise or vibration associated with hydraulic amplitude while simplifying the structure.
Norio Takehana
Filed: 17 Mar 22
Utility
Pump Device and Outboard Motor
5 Oct 23
The disclosure provides a pump device and an outboard motor equipped with the same.
Yasuhiro INO
Filed: 9 Jan 23
Utility
Throttle device
3 Oct 23
A throttle device 1 includes a throttle valve 2 which is disposed in an intake passage 101, and includes a first valve body 20 and a first rotatable shaft 21 for rotatably holding the first valve body 20, a bypass valve 3 which is disposed in a bypass passage 8 connected to the intake passage 101 so as to bypass the throttle valve 2, and includes a second valve body 30 and a second rotatable shaft 31 for rotatably holding the second valve body 30, a common motor 4 for applying a driving force to the throttle valve 2 and the bypass valve 3, a first gear 5 configured to be able to transmit or block the driving force of the motor 4 with respect to the first rotatable shaft 21, a second gear 6 configured to receive the driving force of the motor 4 and transmit the driving force to the second rotatable shaft 31, and a sensor 7 for detecting a rotation amount of the second rotatable shaft 31 of the bypass valve 3 or another rotatable shaft rotating in conjunction with the second rotatable shaft 31.
Jun Kiyono
Filed: 16 Mar 21
Utility
Strain wave gear unit, gear transmission device, and valve timing changing device
19 Sep 23
This strain wave gear unit includes: a bottomed cylindrical first internal gear having internal teeth formed on a cylindrical part and a teeth-non-formed part protruding farther inward than the tooth bottom of the internal teeth in a corner area where a bottom wall part is integrally connected to the cylindrical part; a flexible cylindrical external gear having external teeth meshing with the internal teeth of the first internal gear, an opposed part opposed to the teeth-non-formed part with a gap therebetween, and an end part opposed to the bottom wall part to make contact therewith; a second internal gear arranged adjacent to the first internal gear and having internal teeth meshing with the external teeth; and a rotation member that causes the external gear to deform in an oval shape and causes the meshing position to move while partially meshing with the first internal gear and the second internal gear.
Yuuhei Sanekata
Filed: 10 Sep 19
Utility
Fluid Control Valve Unit and Valve Timing Changing Device
14 Sep 23
A fluid control valve unit includes: a fluid control valve including a sleeve in a bottomed cylindrical shape defining an axis, and a spool slidably accommodated in the sleeve in a direction of the axis; a cylindrical passage member including an inner peripheral surface to which the sleeve is fitted, a receiving part for receiving an end of the sleeve in the direction of the axis, and an annular groove recessed from the inner peripheral surface; and a snap ring including a notch with a predetermined gap and fitted in the annular groove to be capable of restricting the fluid control valve accommodated in the passage member from falling off in the direction of the axis and to be capable of discharging fluid flowing through a discharge passage formed in the passage member.
Kouji SUGANO
Filed: 16 Jan 23
Utility
Liquid Container
7 Sep 23
A liquid container according to the present invention includes: a container 2 temporarily storing a fuel; and a drain unit 3 discharging the fuel from a communication hole 11 provided at a lower portion of the container 2, and the drain unit 3 includes a valve body 15 formed of metal with higher strength and hardness than those of the container 2 made of resin, including a drain passage establishing communication between the communication hole 11 and outside and a valve seat facing the drain passage, which are formed therein, and detachably fixed to the container 2, and a drain screw 16 having a valve element attached to the valve body 15 for opening and closing the drain passage by being separated from or abutting the valve seat.
Takumi OIKAWA
Filed: 23 Feb 23
Utility
Pump Device
7 Sep 23
A pump device includes a housing, a pump element, and an on-off valve.
Yasuhiro INO
Filed: 12 Jan 23
Utility
Fluid Control Valve and Valve Timing Changing Device
7 Sep 23
A fluid control valve includes: a sleeve in a bottomed cylindrical shape, including an inlet, communication ports, an inner peripheral surface, and an inflow annular groove recessed from the inner peripheral surface in a region facing the inlet; a spool slidably disposed on the inner peripheral surface in the sleeve to open and close the communication ports; a C-shaped leaf spring formed by bending a leaf spring into an annular shape with two ends facing each other to form a notch and disposed in the inflow annular groove capable of being contracted in diameter to open and close the inlet; and a restricting part provided on the sleeve for restricting diameter contraction of the C-shaped leaf spring beyond a predetermined inner diameter and for restricting a position of the notch in a region away from the inlet.
Kouji Sugano, Tetsuya Sasaki
Filed: 16 Jan 23
Utility
Oil passage switching valve and valve timing changing apparatus
4 Jul 23
An oil passage switching valve suitable for a valve timing changing apparatus includes: a valve body, opening or closing an oil passage of operating oil; an urging spring, urging to position the valve body to a position corresponding to the retard position in a pause state; and a switching element, positioning the valve body to a position corresponding to the retard position when a state quantity of the operating oil is in a first range, and switching a position of the valve body in response to the state quantity (pressure or temperature) of the operating oil while resisting an urging force of the urging spring to position the valve body to a position corresponding to the advance position when the state quantity of the operating oil is in a second range greater than the first range.
Chikara Oikawa, Kairi Horiuchi
Filed: 10 Aug 20
Utility
Control device of brushless DC motor
9 May 23
The present invention includes a phase angle detection unit generating a phase angle signal switched at a timing at which a cogging torque generated with the rotation of a rotor of a brushless DC motor reaches near a peak on a negative side hindering the rotation of the rotor, an inverter circuit energizing coils of respective phases of the brushless DC motor by switching elements according to an input of a driving signal, an energization period calculation unit calculating an energization period Tw from a target rotation speed set for the brushless DC motor, and a drive control unit energizing the coils sequentially by outputting the driving signal to the respective switching elements for each energization period, gradually increasing a duty of the driving signals to the switching elements at a start of each energization period, and decreasing the duty after the phase angle signal is switched.
Naoki Kobayashi
Filed: 22 Dec 21
Utility
Intake manifold and outboard motor
25 Apr 23
An intake manifold which can ensure a pressure resistance strength, a mechanical strength, and the like and also reduce a passage resistance and an outboard motor which can be made smaller and thinner in a width direction.
Hirobumi Oosawa
Filed: 22 Jul 21
Utility
Rotation driving device
11 Apr 23
A rotation driving device includes: a body 10, made of resin, and having an accommodation hole 13 in a cylindrical shape with an axis S as a center; a motor M, comprising a rotor 60 provided in an accommodation hole of the body and rotating around the axis and a rotation shaft 40 integrally rotating around the axis with the rotor and extending in an axial direction; a first bearing B1 fixed to an end side of the body and a second bearing B2 fixed to the other end side of the body in the axial direction, so as to rotatably support the rotation shaft; and a first cover member 110 connected to the one end side of the body and a second cover member 120 connected to the other end side of the body.
Hisashi Shiokawa, Daiki Ihara, Shota Yagoh, Katsushi Takami
Filed: 18 Jan 22