Abstract: A sensor unit is arranged in an intake pipe of an internal combustion engine. The sensor unit includes: a pressure sensor, detecting a pressure of intake air in the intake pipe; and a case, including a first accommodation part and a communication path, the first accommodation part accommodating the pressure sensor, the communication path providing communication between a pressure receiving chamber of the pressure sensor and an intake passage of the intake pipe. The communication path includes a first communication path and a second communication path, the first communication path having a predetermined passage length, the second communication path having the same passage length as the first communication path and including a region having passage area smaller than passage area of the first communication path.

Abstract: A sensor unit arranged in an intake pipe of an internal combustion engine includes: sensors, detecting a state quantity of intake air flowing through an intake passage defined by the intake pipe; and a case, accommodating the sensors. The case includes: a first passage and a second passage, communicating with each other and each opening to the intake passage so as to expose detection parts of the sensors to the intake air flowing through the intake passage; and a collision wall, colliding with the intake air flowing through the intake passage in the vicinity of an opening of the second passage.

Abstract: In a valve device including: a plate-shaped drive gear provided at an end of a valve shaft made of metal; and, at the drive gear, a detection target of an inductive sensor detecting a rotation angle of the valve shaft, the drive gear has a lever member made of metal and integrated through insert molding in which a part thereof is exposed in the inner surface, the detection target is integrated along with the lever member through the insert molding on a side of the outer surface of the drive gear, and an exposure portion of the lever member at the drive gear including the lever member and the detection target and the end of the valve shaft are caused to abut each other, and a rear side of the abutting part is laser-welded from the side of an outer hole and is fixed thereby to configure a shaft unit.

Abstract: A permanent magnet embedded motor includes: a stator, including a stator core and a coil for excitation, the stator core being formed in an annular shape by laminating a plurality of steel plates obtained by punching a rolled steel plate material; a rotor, arranged inside the stator and including a permanent magnet; and a housing, made of metal and including a fitting recess of a cylindrical shape centered on a predetermined axis for fitting the stator therein. The stator is shrink-fitted into the housing, with a rolling direction of the steel plate being oriented in an expansion direction in which an inner diameter of the fitting recess undergoes a large amount of change during heating of the housing.

Abstract: A permanent magnet embedded motor includes: a stator of an annular shape; a rotor, arranged inside the stator, including a rotor core and a permanent magnet, and rotating about a predetermined axis. The rotor core includes an insertion hole arranged in a circumferential direction and a filling part provided adjacent to the insertion hole for filling with an adhesive. The permanent magnet is inserted into the insertion hole. The insertion hole includes a wall surface to which the permanent magnet adheres. At one opening end of the insertion hole, the filling part is of a shape obtained by cutout in a stepped-down manner in an inner edge area of the insertion hole corresponding to the wall surface.

Abstract: A multiple throttle device 100 includes: a throttle body 12 having a plurality of intake passages 10; a plurality of throttle valves 20; a plurality of secondary passages 102 respectively bypassing the plurality of throttle valves 20; and an air amount adjustment valve 30 for adjusting an amount of air flowing through the plurality of secondary passages 102. The air amount adjustment valve 30 includes a valve plug 40, and a guide part 50 for guiding the valve plug 40 in the axial direction. Opening into the inner peripheral surface 51 of the guide part 50 are: a plurality of first communication holes 52 respectively communicating with downstream sides of the throttle valves 20 in the plurality of intake passages 10; and a second communication hole 54 communicating with a canister 9 for collecting fuel vapor.

Abstract: A valve device includes a housing and a cylindrical valve body. The housing defines: an inflow port; a first outflow port and a second outflow port which are opened apart in a circumferential direction and respectively have first and second opening widths; and an accommodation chamber. The valve body is arranged in the accommodation chamber to open and close the first and second outflow ports and includes: an internal passage; a first outflow communication port which expands in one direction in the circumferential direction continuously with a region facing the first outflow port, and has an opening width larger than the first opening width; and a second outflow communication port which expands in the other direction in the circumferential direction continuously with a region facing the second outflow port, and has an opening width larger than the second opening width.

Abstract: In a throttle device including: a throttle shaft to which a throttle valve is secured; a motor; and a deceleration mechanism decelerating rotation of a drive shaft of the motor and transmitting the rotation to the throttle shaft, the deceleration mechanism includes a throttle gear secured to the throttle shaft, the throttle gear includes a tubular ring into which the throttle shaft is detachably inserted and a gear main body including a gear portion, and the gear main body is formed of a resin by insert processing including the ring.

Abstract: An engine throttle device 1 includes: a throttle shaft 4 supporting a throttle valve 7 inside a throttle bore of a throttle body 2 such that the throttle valve 7 is able to be opened and closed; and a gear case 18 fixed to a side portion of the throttle body 2 and accommodating gear trains, causes one end of the throttle shaft 4 to project into the gear case 18 via shaft holes 20 and 21, and drives the throttle shaft 4 via the gear trains 22, 26, and 29.

Abstract: Provided is a valve device in which a valve body can come into close contact with a valve seat to reliably close the valve even if a shaft moves slightly off-axis or tilted. In a valve device including: a housing 10 defining an upstream passage 12a and downstream passages 13a and 14a through which a fluid passes, and valve seats 11d and 11e interposed between the upstream passage and the downstream passages; a shaft 60 reciprocating along a predetermined axis S; and valve bodies 20 and 30 fixed to the shaft and seated on and separated from the valve seats, the valve seats 11d and 11e are formed into annular tapered surfaces forming a part of conical surfaces centered on the axis, and the valve bodies 20 and 30 are formed to include convex curved surfaces 22a and 32a that come into contact with the annular tapered surfaces when seated.

Abstract: An electromagnetic actuator includes: a movable element 50, reciprocating along an axis S; a coil 122 for excitation; a shaft 60, fixed to the movable element; a first inner yoke 70, movably receiving the movable element; a second inner yoke 80, attracting the movable element through energization of the coil and movably receiving the shaft; and an outer yoke 90, 100, surrounding the coil and bonded to the first inner yoke and the second inner yoke. In a cross section including the axis, a first bonding region between the first inner yoke and the outer yoke and/or a second bonding region between the second inner yoke and the outer yoke have a bonding length Hd1+Hs1, Hd2+Hs2 greater than a plate thickness T of the outer yoke.

Abstract: 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.

Abstract: 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 10 by a magnetic force generated by energizing the coil 3. The cylindrical guide 30 includes: a magnetic tube 32 disposed in contact with an inner peripheral surface of the first yoke 14; and a non-magnetic layer 34 covering an inner peripheral surface of the magnetic tube 32. A minimum distance d1 between the second stator 20 and the magnetic tube 32 is greater than a minimum distance d2 between the second stator 20 and the mover 50 at the original position.

Abstract: In an intake manifold made of a resin and including: a surge tank 2 applied to an engine, an intake air flowing into the surge tank 2; and branch pipes 3a and 3b branched from the surge tank 2 and connected to intake ports of the engine, a pillar portion 20 penetrating through an internal space of the surge tank 2 and connecting an inner wall 12 and an outer wall 13 facing each other is included, and a cross section perpendicular to an extending direction of the pillar portion 20 has an oval shape elongated in an passing direction of the intake air inside the surge tank 2.

Abstract: The present invention provides a throttle device for an engine enabling an operation of fitting a support shaft supporting an intermediate gear into a positioning hole and an operation of causing the intermediate gear and a counterpart gear to mate with each other to be easily performed when a throttle body-side assembly and a gear cover-side assembly, which have individually been assembled, are coupled to each other.

Abstract: The present invention provides an oil pump device capable of preventing foreign matters from getting caught at a sliding part of an oil pump, and thus of preventing a situation where the oil pump is locked and prevented from rotating. The oil pump device includes an oil pump connected to a supply target apparatus by a hydraulic circuit, the oil pump discharging and supplying oil to the supply target apparatus through the hydraulic circuit; a motor driving the oil pump; a trapping member interposed along the hydraulic circuit, the trapping member trapping a foreign matter mixed in the oil discharged from the oil pump; and a motor control unit controlling the motor to perform a normal control mode of driving the oil pump in a normal control rotation range and perform, at operational start of the oil pump, a lock-avoiding mode of driving the oil pump with a lock-avoiding rotational speed set in advance as a lower limit.

Abstract: A mixing valve includes: a housing with a valve chamber formed therein; and a rotor rotatably inserted into the valve chamber, a first peripheral wall of the housing is provided with a first inlet port at a first opening to the valve chamber and a second inlet port at a second opening to the valve chamber, a second peripheral wall of the rotor is provided with a first inflow pipe, a second inflow pipe, and a mixing pipe with a mixing flow path formed therein, the mixing pipe opens in a radial direction of the rotor and communicates with the first inflow pipe and the second inflow pipe to allow a mixed fluid MF to flow into the mixing pipe, and the first peripheral wall of the housing is provided with a discharge port a discharge fluid DF that has flowed into the valve chamber without passing through the first inflow pipe and/or the second inflow pipe of the rotor, respectively, and an outlet port communicating with the mixing flow path.

Abstract: A mixing valve 1 includes: a housing 2 with a valve chamber 6 formed therein; and a rotor 4 rotatably inserted into the valve chamber 6, the housing 2 includes, in a first peripheral wall 12, a first inlet port 14 opening at a first opening 20 to the valve chamber 6 and a second inlet port 16 opening at a second opening 22 to the valve chamber 6, a first fluid F1 flowing into the first inlet port 14, a second fluid F2 flowing into the second inlet port 16, the rotor 4 includes, in a second peripheral wall 28, a first inflow pipe 30 and a second inflow pipe 32, and a housing 2 includes, in the first peripheral wall 12, a discharge port 18 discharging the first fluid F1 and/or the second fluid F2 flowing into the valve chamber 6 without passing through the first inflow pipe 30 and/or the second inflow pipe 32 of the rotor 4, respectively, as a discharge fluid DF to the outside of the housing 2, and includes an outlet port 26 communicating with a mixing flow path 24.

Abstract: A valve device includes: a housing 10, defining an upstream side passage 12a and a downstream side passage 13a through which a fluid passes and an operation chamber C and a valve seat surface 11d interposed between the upstream side passage and the downstream side passage; a valve body 20, being reciprocated in the operation chamber to be seated and disengaged with respect to the valve seat surface; and a driving unit U, having a shaft 40 linked with the valve body and driving the valve body. In the valve device, the upstream side passage 12a and the downstream side passage 13a are arranged on a same axis L, and the valve seat surface 11d is disposed to be inclined with respect to the axis L, with the axis L as the center.

Abstract: A temperature adjustment apparatus includes: a first temperature adjustment circuit causing a first pump to circulate a first heat medium; a second temperature adjustment circuit causing a second pump to circulate a second heat medium; and a mixing valve provided between the first temperature adjustment circuit and the second temperature adjustment circuit and mixes the first and second heat media as a mixed heat medium. The temperature adjustment apparatus calculates a target outflow temperature tgtTout of the mixed heat medium flowing out to the second temperature adjustment circuit, calculates the ratio of the first heat medium contained in the mixed heat medium as a flow ratio R from rotational speeds N1 and N2 of the first and second pumps and an opening degree ? of the mixing valve, and calculates an inflow temperature Tin1 of the first heat medium and an inflow temperature Tin2 of the second heat medium from outflow temperatures Tout and R of the mixed heat medium.