Abstract: An engine throttle device (1) including a throttle valve (5) supported by a throttle shaft (4) inside a throttle bore (2a, 3a) of a valve body (2, 3) and driven to open and close, and a throttle sensor (11) including an excitation conductor provided at one end of the throttle shaft (4) , and a substrate (15) provided with an exciting conductor (13) and a signal detection conductor (14) to face the excitation conductor includes: an excitation conductor unit (12) including an excitation conductor portion (12a) functioning as the excitation conductor, a sensor-side screw portion (12d) provided on a shaft line of the excitation conductor portion (12a), and a sensor-side abutting surface (12e) surrounding the sensor-side screw portion (12d), the excitation conductor unit (12) being integrally formed of a metal material; a shaft-side screw portion (17) formed at one end (4a) of the throttle shaft (4) and screwed to the sensor-side screw portion (12d); and a shaft--side abutting surface (18) formed at the one end (4

Abstract: 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.

Abstract: A transmission mechanism includes: an intermediate shaft secured to a support portion provided in a valve body of an electric throttle valve and disposed in parallel to a motor shaft and a valve shaft; and an intermediate gear rotatably disposed at the intermediate shaft, in which the intermediate gear has a first intermediate gear engaged with a motor gear secured to the motor shaft and a second intermediate gear engaged with a valve gear secured to the valve shaft, the first intermediate gear and the second intermediate gear are integrally configured to be aligned in an axial direction of the intermediate shaft, a hemispherical recessed portion recessed upward around an axial center of the intermediate shaft is formed at a lower end portion of the intermediate gear, and a projecting portion projecting upward in a hemispherical shape around the axial center of the intermediate shaft and supporting the recessed portion is formed in a surface of the support portion facing the recessed portion of the intermedia

Abstract: Provided is an electric throttle valve incorporating a deceleration mechanism in a housing space between a cover including a connector and a valve body with the valve body and the cover laser-welded to seal the housing space, in which the deceleration mechanism includes an intermediate shaft disposed to be parallel to a motor shaft and a valve shaft, a first intermediate gear engaged with a motor gear secured to an end portion of the motor shaft, and a second intermediate gear engaged with a valve gear secured to the valve shaft, the first intermediate gear and the second intermediate gear are disposed to be aligned in an axial direction of the intermediate shaft and are integrally configured, the first intermediate gear is disposed to be closer to the electric motor than the second intermediate gear, and the connector is disposed above the motor shaft and on a side of the second intermediate gear.

Abstract: Provided is an exhaust valve device 1 for a vehicle in which a valve element 7 is supported in an exhaust passage 4 by a rotating shaft 5 axially supported by a valve body 3, a flexible joint member 16 is secured to an output shaft 13a of a motor unit 13 attached to the valve body 3, and a lower end of the flexible joint member 16 and an upper end of the rotating shaft 5 are coupled via a rigid joint member 15, in which the rigid joint member 15 includes: a sealing element 18 having a sealing surface 18a and arm portions 18c, the sealing surface 18a being coupled to one end of the rotating shaft 5 and sealing an axially supported portion of one end of the rotating shaft to prevent exhaust gas from leaking, the arm portions 18c being formed in a periphery of the sealing surface 18a; and a transmission element 19 having a spring groove 19a and engagement grooves 19b, the spring groove 19a being coupled to the end of the flexible joint member 16, the engagement grooves 19b being engaged with the arm portions 18c

Abstract: The present invention provides an intake device and a fuel delivery pipe for a multiple-cylinder engine including a transpiration gas passage or an intake air pressure collecting passage capable of reducing the number of components and improving assembly operability. The intake device and the fuel delivery pipe for a multiple-cylinder engine include: a throttle body including a plurality of bores, each of which communicates with an inside of each cylinder of the engine, and provided with throttle valves for adjusting intake volumes inside the bores in an openable and closable manner; injectors provided in the throttle body and injecting a fuel to the bores; a delivery pipe for supplying the fuel to the injectors; and an intake pipe communication passage connected to an inside of the bores and communicating with the inside of the bores, and the intake pipe communication passage is formed integrally with the delivery pipe.

Abstract: An electromagnetic switching valve includes: a sleeve, defining a port communicating with an oil passage; a spool, reciprocally movably disposed on an axis in the sleeve, opening and closing the port; an electromagnetic actuator, including a plunger disposed on the axis and a stator; a transmission member interposed between the plunger and the spool; and an energizing spring, energizing the spool toward the plunger. The transmission member includes a first abutting part of a convex shape tiltably abutting against a receiving recess of the plunger; a second abutting part of a concave shape abutting against a convex end of the spool; and an outer peripheral wall that, in a state of being deviated from the axis and inclined, regulates the inclination by contacting an inner peripheral surface of the sleeve or the stator.

Abstract: A permanent magnet-embedded motor and a pump device are provided. The permanent magnet-embedded motor includes: a stator, including an annular stator core having teeth and slots disposed in a circumferential direction and coils wound around the teeth; and a rotor, including a rotor core having insertion fitting holes disposed to face the teeth of the stator and disposed in the circumferential direction and permanent magnets inserted and fitted into the insertion fitting holes. The rotor core includes: a groove-shaped recessed part, provided between the insertion fitting holes in the circumferential direction to define an outer circumferential magnetic pole part; a pair of notch parts, provided from both ends toward a center side of the outer circumferential magnetic pole part in the circumferential direction to be recessed inward with respect to an outer circumferential contour; and an outer circumferential magnetic pole surface, sandwiched between the pair of notch parts.

Abstract: An electromagnetic switching valve includes: a sleeve, defining a port communicating with an oil passage; a spool, reciprocally movably disposed on a predetermined axis in the sleeve, opening and closing the port; an electromagnetic actuator, including a plunger disposed on the axis and a stator exerting magnetomotive force on the plunger; and a tubular transmission member, disposed on the axis to be interposed between the plunger and the spool and transmit driving force. The stator includes an insertion hole through which the transmission member is inserted. The transmission member includes a regulated part regulated not to deviate from a range allowing an upper end of the transmission member to be inserted into the insertion hole of the stator when the transmission member is dropped and assembled into the sleeve from a vertical direction for a lower end of the transmission member to abut against the spool integrated into the sleeve.

Abstract: A reed valve 1 includes: a valve body 4; a valve seat 6 having a valve hole 3 for passage of a fluid J; a casing 8 accommodating the valve body 4; and a reed 10 including an arm part 18 having a first end portion 22 connected to the casing 8, and a valve body support part 20 connected to a second end portion 24 of the arm part 18 and supporting the valve body 4 so that the valve hole 3 can be opened and closed. When a first direction D1 is a flow direction of the fluid J in the valve hole 3, and a first surface 21 is a surface facing downstream in the first direction D1 among an inner surface of the casing 8, the first surface 21 includes a recess 27 facing the arm part 18.

Abstract: The present invention includes a phase angle detection unit detecting a rotation of a rotor of a brushless DC motor and generating a phase angle signal switched at a timing at which a cogging torque generated with the rotation of the rotor 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 UH, UL, VH, VL, WH, and WL according to an input of a driving signal, an energization period calculation unit calculating an energization period Tw by converting, into time, 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.

Abstract: A fuel supply device of an engine includes a primary pump suctioning fuel to discharge the fuel to a first pipeline, a secondary pump connected in series to the primary pump via the first pipeline, and suctioning the fuel from the primary pump to supply the fuel through a second pipeline to an engine side, a tank storing the fuel and accommodating the secondary pump, an outflow part causing part of the fuel flowing from the first pipeline through the secondary pump to the second pipeline in the tank to flow outward, a third pipeline returning, to a suction side of the primary pump, gas-liquid mixed fuel generated by vaporizing the fuel flowing out from the outflow part, and a preloading part in one of portions of a circulation path formed between the primary pump and the tank by the first pipeline and the third pipeline and preloading the fuel.

Abstract: Provided are an impeller and a centrifugal pump that can be simplified in structure and reduced in weight and cost, and that can be integrally molded by a mold or the like. In a centrifugal pump including a housing having an inlet, an outlet and an impeller chamber, an impeller is disposed in the impeller chamber and is rotationally driven by a driving shaft. The impeller includes: a shaft part connected to the driving shaft to rotate about an axis line extending toward the inlet; blades protruding radially outward from an outer periphery of the shaft part; and an annular shroud plate continuous with the blades so as to cover a tip side area of the blades in order to be disposed adjacent to an inner wall of the housing on the inlet side.

Abstract: A butterfly valve device includes: a body that defines a passage through which a fluid flows and a bearing hole arranged on an axis; a shaft that is rotatably passed through the bearing hole, has a two-sided width portion formed in a region facing the passage and a slit hole penetrating a center of the two-sided width portion, and has a columnar outer contour; and a butterfly valve that is fitted into the slit hole and fixed to the shaft to open and close the passage. In a surface region where the two-sided width portion of the shaft and the butterfly valve are close to each other, the butterfly valve device has a step suppressing portion that suppresses a step so as to make the fluid flow streamlined when the butterfly valve is fully opened.

Abstract: An accelerator pedal device according to the present invention is provided with: a pedal arm (30) having an accelerator pedal; a resin housing (10) for supporting the pedal arm such that the pedal arm is swivelable about a prescribed axial line (S) between a rest position and a maximum stepping position; and a return spring (40) that applies a biasing force for returning the pedal arm to the rest position. The housing includes: a boss section (11i) through which a bolt (B) for fixing the housing to a vehicle body is made to pass; and a full open stopper (11n) for specifying the maximum stepping position in the vicinity of the boss section.

Abstract: 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.

Abstract: Provided is an electronically controlled throttle device for an engine driving to open and close a throttle valve (8) of a valve body (3) to which rotation of a motor (15) is transmitted from a driven gear (14) via a throttle shaft (6), and disposing a substrate (22) on which an excitation conductor (23) and a signal detection conductor (24) are arranged to face an exciting conductor (21) rotating together with the throttle shaft (6). The driven gear (14) comprises an embedded core metal (25), and has one side surface to which an exciting conductor (21) is exposed, the core metal (25) and the exciting conductor (21) being insert-Molded of a synthetic resin material and prepared, and a caulked portion (6a) of the throttle shaft (6) is inserted and fixed into a shaft hole (25a) extending through the core metal (25).

Abstract: 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. A resinous intake manifold made of a resin and configured to be applied to an engine of an outboard motor includes: a surge tank which forms a flat contour and includes an intake inlet; and a plurality of branch pipes which defines intake passages communicating with an internal space of the surge tank, wherein a contour wall of the surge tank includes a plurality of ridge portions which protrudes toward the internal space and is oriented toward the intake passage side.

Abstract: A valve device of the present invention includes: a body (10) defining a passage (11) through which fluid flows; a valve shaft (20) pivotably supported by the body; a butterfly valve (30) fixed to the valve shaft to open and close the passage; and a drive unit (60) configured to impart a rotational drive force to the valve shaft. The body has a protrusion portion (17) formed integrally in a manner of protruding from an outer wall (10a) of the body, and the drive unit (60) is fixed to the body (10) via the protrusion portion (17). Accordingly, influence of heat of high-temperature fluid can be suppressed or prevented, and the opening and closing operation can be performed with high precision.

Abstract: A fuel supply device of an engine includes a primary pump suctioning fuel to discharge the fuel to a first pipeline, a secondary pump connected in series to the primary pump via the first pipeline, and suctioning the fuel from the primary pump to supply the fuel through a second pipeline to an engine side, a tank storing the fuel and accommodating the secondary pump, an outflow part causing part of the fuel flowing from the first pipeline through the secondary pump to the second pipeline in the tank to flow outward, a third pipeline returning, to a suction side of the primary pump, gas-liquid mixed fuel generated by vaporizing the fuel flowing out from the outflow part, and a preloading part in one of portions of a circulation path formed between the primary pump and the tank by the first pipeline and the third pipeline and preloading the fuel.