摘要:
A manufacturing method for an actuator including a casing and a housing. The method includes setting a metallic ring in a molding die; injection molding a first flange portion of the casing using one annular hooking piece of the metallic ring as a part of a surface of the molding die so as to outsert-mold the metallic ring on a molded surface of the first flange portion, the molded surface being opposite to a first connecting end surface of the first flange portion; engaging the first flange portion with a second flange portion of the housing so as to be opposed to each other; and applying force to bend the metallic ring to form an other annular hooking piece, thereby crimping and fixing the first connecting end surface of the casing with a second connecting end surface of the housing.
摘要:
An electromagnetic combination valve has an electromagnetic driving portion, a housing, a spring, and a first and a second valves. A coil in the electromagnetic driving portion generates a magnetomotive force when it is energized to attract the first valve to open the first valve. The second valve opens by being urged to the one side in an axial direction by the spring when a pressure of a fluid to urge the second valve in a valve-closing direction of the second valve decreases to a predetermined value when the first valve opens. The second valve has a sealing rubber on an end face thereof, to form an airtight seal at a gap between a valve seat of the housing and the second valve. The sealing rubber generates a repulsive force smaller than the urging force of the spring in the axial direction.
摘要:
A fluid control valve has: a housing in which a fluid passage is formed; a valve seat in which a fluid flow hole is formed to be communicated with the fluid passage; and a valve that is formed from rubber elastic body. At least a part of the housing is formed from resin. The valve has a valve seal portion and is installed in the housing to be able to close the fluid flow hole. In a valve-closing time, the valve seal portion is seated on the valve seat. The valve seal portion is coated by a thin diamond-like carbon coating having hardness between Hv 50 and Hv 500 in Vickers hardness.
摘要:
A fluid control valve has: a housing in which a fluid passage is formed; a valve seat in which a fluid flow hole is formed to be communicated with the fluid passage; and a valve that is formed from rubber elastic body. At least a part of the housing is formed from resin. The valve has a valve seal portion and is installed in the housing to be able to close the fluid flow hole. In a valve-closing time, the valve seal portion is seated on the valve seat. The valve seal portion is coated by a thin diamond-like carbon coating having hardness between Hv 50 and Hv 500 in Vickers hardness.
摘要:
A metallic ring engages with radially outer peripheries of a first flange portion of a resinous casing and a second flange portion of a housing. One of the resinous casing and the housing accommodates a solenoid actuator. The metallic ring is bent so that a pair of annular hooking pieces is formed. The annular hooking pieces opposes to each other such that the annular hooking pieces interpose the first flange portion and the second flange portion from both sides in an axial direction, so that a connecting end surface of the resinous casing is crimped and fixed to a connecting end surface of the housing. A manufacturing method for the actuator includes the following steps. The metallic ring is set in a molding die for molding the resinous casing. The first flange portion is injection molded using one of the pair of annular hooking pieces as a part of the molding die in an injection molding process.
摘要:
A vibration control supporter includes a rod shaped screwing body screwed into a fixing member, an upper elastic support part at a side of the screwing body away from the member, and a lower elastic support part at a side of the screwing body close to the member. The upper part joins the screwing body and the device by an upper elastic body. The lower part joins the screwing body and the device by a lower elastic body. Turning force of the screwing body is transmitted to the upper body. The lower part includes a collar inserted into the lower body. The collar has an insertion hole, through which the screwing body passes. A clearance for canceling a tolerance is formed between a loosely fitted portion of the hole and the screwing body. A movement restricting portion of the hole contacts the screwing body to prevent movement of the collar.
摘要:
Markers each comprising an electromagnetic coil are installed on the surface of a road at a lateral center line of a running lane of the road at predetermined intervals. Provided for each of the markers, a driving signal generating circuit drives the associated marker so that the marker transmits an alternating current magnetic field. Alternating current magnetic field receiving devices each comprising an electromagnetic coil are installed on the front bumper of a vehicle at positions symmetrical with respect to the lateral center line of the vehicle. While the vehicle is running, the alternating current magnetic field receiving devices sequentially receive the alternating current magnetic fields generated by the markers one field after another. A microcomputer receives detection voltages generated by the alternating current magnetic field receiving devices through detection circuits and determines the lateral position of the vehicle from the detection voltages.
摘要:
A valve member of a pressure relief valve has a shaft portion, a pressure receiving portion, and a guide portion, wherein the valve member is axially movable in a fuel return passage. When a forward end of the shaft portion is seated on a valve seta, the fuel return passage is closed, while the shaft portion is separated from the valve seat the fuel return passage is opened. A notched portion is formed at an outer wall of the guide portion to thereby form an outer-surface passage. A fuel inlet port is formed in the valve member for communicating a fuel inlet chamber to the fuel return passage at a downstream side of the valve member.
摘要:
A valve member of a pressure relief valve has a shaft portion, a pressure receiving portion, and a guide portion, wherein the valve member is axially movable in a fuel return passage. When a forward end of the shaft portion is seated on a valve seta, the fuel return passage is closed, while the shaft portion is separated from the valve seat the fuel return passage is opened. A notched portion is formed at an outer wall of the guide portion to thereby form an outer-surface passage. A fuel inlet port is formed in the valve member for communicating a fuel inlet chamber to the fuel return passage at a downstream side of the valve member.
摘要:
An object such as an electromagnetic valve is resiliently mounted (or in a floating manner) on a mounting base such as an intake manifold of an internal combustion engine. A valve port of the electromagnetic valve is connected to a connecting hole of the intake manifold via an O-ring, and a stay connected to the electromagnetic valve is coupled to a bolt via a resilient member such as a grommet. The bolt is rotated to be fastened to the intake manifold by screwing. A rod portion of the bolt is inserted into a hole of the grommet. Projections and depressions such as grooves extending along the rotational direction of the rod portion are formed on the inner surface of the grommet hole to reduce a contacting area and abrasion force between the grommet and the rod portion. In this manner, deformation of the grommet caused by rotation of the rod portion is suppressed.