Abstract: A method of producing a throttle device includes setting an angle between a fully closed position and a default position to a predetermined angle by processing at least one of a gear-side fully closed position stopper on a throttle gear, a body-side fully closed position stopper on a throttle body, a default position defining member, a body-side engaging portion of the throttle body, or a gear-side engaging portion of the throttle gear.

Abstract: A valve device that includes a valve body; a valve shaft configured to rotate the valve body; a coil spring being electrically conductive and configured to be twisted with rotation of the valve body and the valve shaft; a first conductive member being electrically conductive and facing an inner circumferential surface or an outer circumferential surface of the coil spring in a radial direction of the coil spring; and a first detector configured to detect at least one of a rotation angle of the valve body or a rotation angle of the valve shaft based on an electrostatic capacitance between the coil spring and the first conductive member, the electrostatic capacitance changing according to a state of the coil spring that changes with the rotation of the valve body and the valve shaft.

Abstract: A failure diagnostic apparatus for a fuel vapor treatment device includes a case, a fuel inflow means, and a fuel discharge means. The case is disposed inside the fuel tank. A canister is accommodated in the case. The case shields the canister from the fuel in the fuel tank and provides a gap between an inner surface of the case and an outer surface of the canister. The fuel inflow means is activated when the fuel tank is refueled, and allows the fuel in the fuel tank to flow into the case. The fuel discharge means is activated during failure diagnosis by the failure diagnostic means, and drains the fuel in the case into the fuel tank.

Abstract: A motor controller includes a temperature sensor configured to detect a temperature of a motor. An intermittent operation circuit allows the motor to intermittently operate at a rotation speed up to a phase before the motor reaches a rated rotation speed when it is detected that the motor temperature is at a low temperature range. The intermittent operation circuit includes a position fixing circuit configured to allow a constant electric current to flow through stator coils and to fix the motor in a stopped state. The intermittent operation circuit further includes a forced commutation circuit that allows the motor to rotate at a rotation speed up to the start-up rotation. The position fixing circuit allows the constant electric current to have a greater value as the temperature detected by the temperature sensor is lower, and allows the position fixing circuit and the forced commutation circuit to operate alternately.

Abstract: An evaporated fuel processing device may include a flow passage through which evaporated fuel generated in a fuel tank flows; a first adsorbent constituted of activated carbon and arranged in the flow passage for adsorbing the evaporated fuel flowing in the flow passage; and a second adsorbent constituted of a porous metal complex and arranged in the flow passage on a downstream side of the first adsorbent for adsorbing the evaporated fuel having passed through the first adsorbent and flowing in the flow passage on the downstream side of the first adsorbent.

Abstract: An O-ring arrangement in a slidingly fitted part includes one sliding member (holder), another sliding member (sleeve), a recess, and an O-ring. The O-ring is arranged in the recess in a compressed state to seal the one sliding member and the other sliding member. The area of the sliding contact surface of the O-ring arranged in the recess is coated with a coating to reduce the sliding resistance.

Abstract: A refueling control system for an internal combustion engine includes a fuel tank; a vapor pipe; a step motor-driven shut-off valve; a fuel filler lid; and an electronic control unit configured to, when the fuel filler lid is to be opened, i) drive the shut-off valve such that the shut-off valve is opened, ii) close the fuel filler lid when an opening degree of the shut-off valve is less than a set opening degree, and iii) open the fuel filler lid when the opening degree of the shut-off valve is greater than or equal to the set opening degree. The electronic control unit sets the set opening degree such that the set opening degree when an opening speed of the shut-off valve is low is greater than the set opening degree when the opening speed of the shut-off valve is high.

Abstract: An intake pipe includes a pipe body and an ejector part. The pipe body includes an intake passage therein. The ejector part includes an air inlet, a vapor inlet, and an outlet pipe part. The ejector part is configured to generate a negative pressure in response to a compressed air supplied from a compressor through the air inlet to suction fuel vapor generated in a fuel tank through the vapor inlet. The ejector part is configured to discharge a gaseous mixture of the compressed air and the fuel vapor into the intake passage via the outlet pipe part. The pipe body includes a passage wall part formed with the ejector part as a monolithic, single-piece. The passage wall part includes a recess open to the intake passage side. The outlet pipe part is disposed in the recess and extends in a discharge direction of the compressed air from the ejector part.

Abstract: A welding structure includes, in a cross-section of the first member and the second member when they are seen from an axial direction of the insertion hole, a plurality of welding spots, an outer periphery of the welding spots are each formed with a curve-shaped portion and two side-face portions. When two intersections where the outer side-face portion on the outer periphery of the both-end welding spots and the outer periphery of the second member intersect are defined as a first intersection and a second intersection, a weld angle formed by a first linear line linking the first intersection with a sectional center of the second member and a second linear line linking the second intersection with the sectional center of the second member is set to a first predetermined angle or more.

Abstract: A fuel supply device includes a fuel pump, a sub-tank configured to store a fuel, a leakage passage configured to return a part of a pressurized fuel discharged from the fuel pump into the sub-tank, and a fuel filter disposed at a bottom part of the sub-tank. The fuel filter includes a filter member that is configured to filter the fuel to be suctioned into the fuel pump. A downstream end of the leakage passage includes a linear passage part linearly extending from a position above the filter member toward the filter member. The fuel supply device also includes a direction change wall part configured to change the flow direction of the pressurized fuel jetted from the linear passage part so as to prevent the pressurized fuel from directly impacting the filter member.

Abstract: An accessory component mounting structure includes a tubular pump mounting portion provided in a canister and a purge pump having a motor unit that generates heat. The purge pump is inserted into the internal space of the pump mounting portion and is mounted by snap-fitting. A gap passage extending from an opening side of the pump mounting portion to the rear side thereof is provided between the pump mounting portion and the purge pump. A first communication hole in fluid communication with the gap passage and the outside is provided in the pump mounting portion.

Abstract: An evaporated fuel treatment apparatus includes an electrically-operated valve disposed between a full tank control valve and an atmosphere open port and a control unit that controls the electrically-operated valve, and the control unit performs valve-closing control that fully closes the electrically-operated valve when a valve-closing condition is satisfied after the start of fuel supply, in which a value measured by a fuel volume measurement unit is equal to or greater than a first predetermined value determined in advance and a value detected by a pressure sensor is equal to or greater than a second predetermined value determined in advance.

Abstract: An evaporated fuel treatment apparatus includes an abnormality determination unit that determines an abnormality of a purge passage. The abnormality determination unit changes an operating cycle of a purge control valve to a cycle longer than an initial set value while maintaining a duty ratio of the purge control valve set according to an operating state of an internal combustion engine, and determines an abnormality of the purge passage based on a first variation range and a second variation range calculated from a detection value detected by an airflow meter before and after the change of the operating cycle.

Abstract: An evaporated fuel processing device includes a canister; a purge passage connecting the canister and an intake pipe of an engine; a purge control valve on the purge passage; and a controller that controls switching timings for the purge control valve and a fuel injection valve that supplies fuel to the engine. The controller estimates whether a catalyst temperature would exceed a criteria temperature if the purge gas is supplied to the engine while the engine is in operation and a fuel supply from the fuel tank to the engine is stopped, and in a case where the catalyst temperature is estimated to exceed the criteria temperature, the controller reduces the purge gas amount before the fuel supply to the engine is stopped such that the catalyst temperature becomes equal to or lower than the criteria temperature when the fuel supply to the engine is stopped.

Abstract: In a double eccentric valve, a valve seat or valve body includes a rubber seal part in which a seat surface or seal surface is formed. An interference between the valve seat and the valve body is made minimum at a position of a rotary-shaft-directional end of the valve body in the radial direction of the valve body which is parallel to an extending direction of the axis of a rotary shaft.

Abstract: In a double eccentric valve, a valve seat or valve body includes a rubber seal part in which a seat surface or seal surface is formed. An interference between the valve seat and the valve body is made minimum at a position of a rotary-shaft-directional end of the valve body in the radial direction of the valve body which is parallel to an extending direction of the axis of a rotary shaft.

Abstract: An EGR device is provided with: an EGR passage for allowing a portion of exhaust gas from an engine to flow to an intake passage; an EGR valve for adjusting an EGR flow rate through the EGR passage; a throttle valve provided in the intake passage; and an electronic control device which calculates a fully closed reference intake pressure based on an operating state of the engine during EGR valve fully-closing, and which diagnoses an abnormality due to valve-opening locking of the EGR valve based on the calculated fully closed reference intake pressure. The ECU determines a foreign matter biting abnormality of the EGR valve based on the intake pressure, and based on the result of adding the fully closed reference intake pressure, calculated according to the rotational speed and the load of the engine, to an intake-pressure increase allowance calculated according to the rotational speed.

Abstract: An evaporated fuel processing device that includes a pressurizing pump configured to pressurize gas in the vapor passage downstream of the closing valve toward the closing valve; a first pressure sensor configured to detect a pressure in the fuel tank directly or indirectly, and/or a second pressure sensor configured to detect a pressure in the vapor passage downstream of the closing valve directly or indirectly. When the closing valve moves toward an open side in the closed state with the pressurizing pump pressurizing the gas in the vapor passage downstream of the closing valve toward the closing valve, the controller may specify a valve-opening-start position based on the pressure detected by the first pressure sensor and/or the pressure detected by the second pressure sensor, wherein the valve-opening-start position is a position where the closing valve transitions from the closed state to the opened state.

Abstract: A canister includes a main casing, a first port formed in a wall of the main casing, and a first adsorbent section within the main casing. The first adsorbent section and the wall of the main casing define a space section therebetween. The first adsorbent section includes a first adsorbent and a first retainer holding the first adsorbent. The canister also includes a first elastic element disposed in the space section. The first elastic element urges the first retainer to elastically hold the first adsorbent. In addition, the canister includes a subcasing integral to the wall of the main casing. The subcasing is positioned within the space section. Further, the canister includes a second adsorbent section in communication with the first port. The second adsorbent section includes a second adsorbent disposed within the subcasing. Still further, the canister includes a second retainer holding the second adsorbent.

Abstract: A fuel supply apparatus to be mounted in a vehicle includes an injector, a rear delivery pipe and a front delivery pipe connected to the injector, and a fixed flange that is provided in the rear delivery pipe to fix the rear delivery pipe to a PCU. The fixed flange includes a cutout.