Abstract: A fuel supply device has a cover member which is attached to an opening of a fuel tank, a pump unit comprising a pump, and a connecting portion configured to connect the cover member and the pump unit. A connecting shaft which is formed to one of the two connected members of the connecting portion is inserted into a connecting hole which is formed to the other of the two such that the pump unit is connected to be relatively movable to the connecting portion. The pump unit includes an upper base on which the pump is placed, and a lower base which contacts to the fuel tank. The upper base and the lower base are coupled through attachments whereby an engagement portion of the upper base is fitted into a recessed portion formed on the side of the lower base. The recessed portion has a pair of planes opposing to each other and oriented toward a bottom surface of the lower base from a predetermined position.

Abstract: A fuel supply device has a cover member which is attached to an opening of a fuel tank, a pump unit comprising a pump, and a connecting portion configured to connect the cover member and the pump unit. A connecting shaft which is formed to one of the two connected members of the connecting portion is inserted into a connecting hole which is formed to the other of the two such that the pump unit is connected to be relatively movable to the connecting portion. The pump unit includes an upper base on which the pump is placed, and a lower base which contacts to the fuel tank. The upper base and the lower base are coupled through attachments whereby an engagement portion of the upper base is fitted into a recessed portion formed on the side of the lower base. The recessed portion has a pair of planes opposing to each other and oriented toward a bottom surface of the lower base from a predetermined position.

Abstract: A mounting structure for mounting a PCV valve includes a mount recess formed in at least one of joint surfaces of a cylinder head and an intake manifold, so that at least a part of the PCV valve can be fitted into the mount recess.

Abstract: A mounting structure for mounting a PCV valve includes a mount recess formed in at least one of joint surfaces of a cylinder head and an intake manifold, so that at least a part of the PCV valve can be fitted into the mount recess.

Abstract: A mounting structure for mounting a PCV valve includes a mount recess formed in at least one of joint surfaces of a cylinder head and an intake manifold, so that at least a part of the PCV valve can be fitted into the mount recess.

Abstract: A mounting device can mount an intake manifold to an engine and includes a bending moment applying device applying a bending moment to the intake manifold as the intake manifold is mounted to the engine.

Abstract: An intake manifold capable of being connected with a throttle valve apparatus includes a conducting pipe defining an air intake pathway therein, a surge tank for receiving air flowing from the throttle valve apparatus through the air intake pathway, and a noise prevention net placed within a half of a cross section of the air intake pathway. The noise prevention net has a net portion for reducing noise volume and defines at least one opening outside of the net portion in a radial direction in the cross section of the air intake pathway such that the opening is positioned along or near an inner wall of the conducting pipe.

Abstract: An intake engine valve may have a tapered portion positioned between a valve head and a valve stem tapering from a larger size to a smaller size in the direction of the valve stem. The valve stem may include a small diameter portion positioned between a guide stem portion And a stem end portion on the side of the tapered portion and having a diameter smaller than a diameter or diameters of the guide stem portion and the stem end portion. The guide stem portion may be guided by a valve guide of the engine.

Abstract: An intake manifold includes a surge tank chamber, a plurality of branch passages and a gas tank chamber capable of introducing a gas and distributing the gas into the plurality of branch passages. The gas is to be refluxed to an engine.

Abstract: A resin intake manifold is provided with two separated bodies manufactured by connecting protrusions of weld portions of the separated bodies to each other in accordance with a vibration welding, and a cover wall in which one of the weld portions is arranged in an inner side or an outer side of the protrusion with leaving space with the protrusion.

Abstract: A mounting structure for mounting a PCV valve includes a mount recess formed in at least one of joint surfaces of a cylinder head and an intake manifold, so that at least a part of the PCV valve can be fitted into the mount recess.

Abstract: A mounting device can mount an intake manifold to an engine and includes a bending moment applying device applying a bending moment to the intake manifold as the intake manifold is mounted to the engine.

Abstract: An intake manifold capable of being connected with a throttle valve apparatus includes a conducting pipe defining an air intake pathway therein, a surge tank for receiving air flowing from the throttle valve apparatus through the air intake pathway, and a noise prevention net placed within a half of a cross section of the air intake pathway.

Abstract: An intake manifold includes a surge tank chamber, a plurality of branch passages and a gas tank chamber capable of introducing a gas and distributing the gas into the plurality of branch passages. The gas is to be refluxed to an engine.

Abstract: A resin intake manifold is provided with two separated bodies manufactured by connecting protrusions of weld portions of the separated bodies to each other in accordance with a vibration welding, and a cover wall in which one of the weld portions is arranged in an inner side or an outer side of the protrusion with leaving space with the protrusion.

Abstract: A resin intake manifold is provided with a surge tank, an independent intake passage connected to the surge tank, and a plurality of pieces formed in a predetermined shape and welded along a weld line. A funnel portion is formed in a portion connected from the surge tank to the independent intake passage, and the weld line is formed so as to cross over a portion near the funnel portion. A funnel partition wall separating a plurality of independent intake passages is formed in the funnel portion so as to protrude from one piece to another piece. A funnel wall receiving portion receiving the funnel partition wall is formed in another piece, and the funnel partition wall and the funnel wall receiving portion are welded in bonded surfaces.

Abstract: A resin molded component includes a flange having a through-hole. A concave portion is formed on the surface of the flange that faces the component on which the flange is fitted. Flows of a molten resin material meet each other at a meeting portion in a region around the through-hole during a molding process, and a weld line is formed at the meeting portion. The concave portion is formed upstream of the meeting portion at which the flows of the molten resin material meet each other, and in the vicinity of the through-hole. The thickness of the resin material in the bottom portion of the concave portion is greater than the thickness of the resin material in the thinnest portion of the wall of the concave portion.

Abstract: A resin intake manifold is provided with two separated bodies manufactured by connecting protrusions of weld portions of the separated bodies to each other in accordance with a vibration welding, and a cover wall in which one of the weld portions is arranged in an inner side or an outer side of the protrusion with leaving space with the protrusion.

Abstract: A resin intake manifold is provided with two separated bodies manufactured by connecting protrusions of weld portions of the separated bodies to each other in accordance with a vibration welding, and a cover wall in which one of the weld portions is arranged in an inner side or an outer side of the protrusion with leaving space with the protrusion.

Abstract: A resin intake manifold is provided with an integrally formed base member. The base member has a U-shaped curved distribution passage lower surface wall portion, an engine mounting flange portion formed in one end of the distribution passage lower surface wall portion, and a surge tank peripheral wall portion formed in another end and a lower surface side of the distribution passage lower surface wall portion. A resonator peripheral wall portion is integrally formed in a dead space in a lower surface side of the distribution passage lower surface wall portion and between the surge tank peripheral wall portion and the engine mounting flange portion. In accordance with the structure in which the wall itself constituting the resonator is formed by the structure member, it is possible to structure the resonator without enlarging a size of the intake manifold and without lowering the strength.