摘要:
An intake pipe for intake gas of an internal combustion engine has an intake pipe channel and a flap unit with a flap shaft and a flap fixedly arranged on the flap shaft. The flap unit alternatingly opens or closes the intake pipe channel. A hollow insert body is disposed in the intake pipe channel, wherein the flap unit is arranged in the insert body and the flap is positioned in a hollow interior of the insert body. The insert body has opposite end faces and the opposite end faces are open. The flap shaft extends through opposite walls of the insert body in a radial direction relative to an insert body axis of the insert body. The insert body is rotatable on the flap shaft. A radial inner circumferential side of the insert body widens toward at least one of the open end faces.
摘要:
The invention relates to a method for assembling a regulation valve (10) intended for controlling the flow of gas in a circuit of a motor vehicle equipped with a heat engine, said valve (10) comprising a magnetic structure (15), a rotation axis (21) and a toothed section (16). The main feature of an assembly method according to the invention is that it comprises the following steps:—mouthing of the toothed section (16) on the rotation axis (21),—rigid connection by welding the magnetic structure (15) to the toothed section (16) fixed to the rotation axis (21).
摘要:
A magnet holder (10) for use in an analogous or digital throttle position sensor for sensing the angle of a butterfly valve in a fuel supply unit of an internal combustion engine, said magnet holder (10) including a throttle lever member (11) adapted to be fixed to a shaft of the butterfly valve and carrying at least one magnet (17). A recess (12) for the magnet (17), or for each magnets if more than one magnet is used, is provided in the throttle lever member (11), the magnet (17) is located in said recess (12), or the magnets are located in said recesses if more than one magnet is used, and throttle lever member material (18) located around an entrance to the recess (12) or entrances to the recesses is staked over the magnet (17) or magnets, respectively, to cover each magnet (17) sufficiently to retain it in its associated recess (12). Thereby, the magnet/magnets (17) will be securely retained in the magnet holder (10) and the manufacturing of the holder can be done in production, particularly in large numbers such as mass production.
摘要:
A valve device for controlling an exhaust gas flow of an internal combustion engine includes a housing comprising a channel which has the exhaust gas flow therethrough. A shaft is disposed in the housing. The shaft is rotatably mounted about a shaft axis. A flap is connected to the shaft. The flap controls a flow cross section of the channel. The flap comprises two flexurally rigid support plates. The support plates each comprise an outer periphery. An elastic flap body is arranged between the support plates. The elastic flap body comprises an outer periphery which is larger on all sides than the outer periphery of the support plates. A distance between the outer periphery of the elastic flap body and the outer periphery of the support plates is largest in an area of the shaft axis, and smallest at an angle of 90° relative to the shaft axis.
摘要:
A flow control valve in which corrosion is less likely to occur in the vicinity of a radial step portion in a gas passage of a housing and a method for manufacturing the same are provided. A flow control valve includes: a housing formed with a gas passage including a first cylinder member accommodating portion, a second cylinder member accommodating portion, and a radial step portion; a first cylinder member accommodated in the first cylinder member accommodating portion; a second cylinder member accommodated in the second cylinder member accommodating portion; and a valve body that is rotatably arranged inside the first cylinder member and the second cylinder member in the radial direction. The housing is formed of cast iron. At least surfaces of the first cylinder member and the second cylinder member are formed of a highly corrosion resistant material. At least one of a first axial end surface and a second axial end surface includes an opposing portion that opposes the radial step portion in the axial direction. A gas seal structure is arranged between the opposing portion and the radial step portion.
摘要:
An electronic throttle control device in a internal combustion engine for a vehicle can be improved in maintainability and can be reduced in size. An electronic throttle control device in a V-type internal combustion engine for a vehicle has a fuel injection valve and throttle valves in an intake passage. A throttle driving motor controls the opening angle of each throttle valve according to the amount of operation of a throttle grip performed by an operator of the vehicle. The throttle driving motor is located outside a region surrounded by the throttle bodies that are respectively connected to all of intake ports as viewed in plan.
摘要:
In a manufacturing method of a valve unit, which includes a valve having a rotatable shaft that is rotatably supported by a housing through a bearing to open and close a fluid passage defined in the housing, the housing and the valve are simultaneously molded in a mold assembly. The bearing is installed between the housing and the rotatable shaft during execution of the molding of the housing and the valve.
摘要:
A lower intake manifold assembly includes a lower housing and a runner insert fitted into the lower housing. The lower housing may be made of metal and the runner insert may advantageously be made of a synthetic resin material. The runner insert provides a sealing surface between the lower housing and the cylinder head of an internal combustion engine. The runner insert also supports a charge motion control valve flap assembly that advantageously may include a shaft and synthetic resin flaps over-molded onto the shaft.
摘要:
A method for manufacturing a throttle valve unit having a housing part and a valve flap part that can move in relation to it includes the steps of injection molding the housing part of a first plastic material in a first cavity, transferring the molded housing part to a second cavity spatially decoupled from the first cavity, and injection molding the movable valve flap part out of a second plastic material in a second mold cavity inside the molded housing part. Before the molded housing part is transferred to the second cavity, it is subjected to an intermediate treatment in order to influence the shrinkage behavior, thereby selectively adjusting the gap geometries between the parts.
摘要:
A resin main body (3) defining a bore (7) through which intake air flows, and a valve body (60) having a shaft part (20) rotatably supported by the main body (3) and a valve part (4) for opening and closing the bore (7) of the main body (3) are provided. The main body (3) is molded with the valve body (60) inserted together with a pair of bearing sleeves (24). At the time of molding the main body (3), the bearing sleeves (24) are biased in a direction opposite to the flow of the intake air with the valve body (60) being positioned in place.