KR960704329A - Device for actuating a control menber - Google Patents

Abstract

The present invention is a device for operating a control member such as a throttle valve in a gas conduit 13 such as an inlet of an internal combustion engine, the valve being pivotable from an idling position to an operating position by a valve shaft 5, The valve shaft 5 supports an actuator body comprising a magnetized rotor 9 which cooperates with the pole piece 15 of a given excitation section 11 via an air gap 10, which excitation section is driven by a regulator. These pole pieces can be electrically excited and the control piece operating device surrounding the outside of the rotating body, wherein the excitation section 11 is a U-shaped stator in which the figures (12a, 12b) form the pole piece (15) The pole piece has a clear rest position in a non-excited condition by returning the throttle valve 4 in a direction opposite to the opening direction under the influence of the magnetic torque that the rotor 9 pulls the rotor to a clear rest position. To return to Magnets in the gap to cooperate with the permanent rotating body (9).

Description

Device for actuating a control menber

As this is a public information case, the full text was not included.

1 is a partial cross-sectional schematic view showing a suction port of an internal combustion engine having a throttle valve and a device for operating the throttle valve;

2 is a cross-sectional view of the throttle valve operating device,

3 is a diagram showing an embodiment in which no reverse torque is allowed as the second embodiment of the apparatus of FIG.

Claims (23)

A device for operating a control member 4, such as a throttle valve, in a gas conduit 13, such as an inlet of an internal combustion engine, the valve being pivotable from an idling position to an operating position by a valve shaft 5, the valve shaft (5) supports an actuator body comprising a magnetized rotor (9) which cooperates with the pole piece (15) of a given excitation section (11) through an air gap (10), said excitation section being electrically driven by a regulator. These pole pieces can be excited, and in the control member operating device surrounding the outside of the rotating body, the excitation section 11 includes a U-shaped stator in which the figures 12a, 12b form the pole pieces 15; The pole piece is air so that the rotor 9 returns the throttle valve 4 to the specific resting position of the non-excited condition in the direction opposite to the opening direction under the influence of the magnetic torque that pulls the rotating body to the specific resting position. Magnet permanent spin in the gap Control device operating device, characterized in that in cooperation with the whole (9). 2. The excitation section (11) according to claim 1, wherein the excitation section (11) comprises a U-shaped stator in which the figures (12a, 12b) form a pole piece (15), which pole pieces produce a strong suppression torque due to the non-uniform shape, The suppression torque is a control member actuating device for pulling the rotating body (9) to the preferred rest position determined by the suppression torque. The width of the air gap 10 varies along the electrode arc 15a of the pole piece such that the narrower air gap portion 15a ₁ and the wider air gap portion 15a ₂ are alternately positioned. The gap member (15a1, 15a2) is a control member operating device, characterized in that always arranged radially opposite to each other. 3. The spaced apart pole pieces 15 form a gap 17 between each of the rims 12a, 12b or between the pole piece ends 18, the pole pieces 15 having an electrode in the air gap. Control device operating device characterized in that it has a slot (16) in the center of the arc. 5. The control element actuating device according to claim 4, wherein the slot (16) in the electrode arc (15) magnetically affects the change in the suppression torque to the same extent as the gap (17) between the pole end portions (18). . 6. The control element actuating device according to claim 5, wherein an auxiliary slot (20) is provided around the slot (16) in the electrode arc (15). 3. Control device actuator according to claim 2, characterized in that the suppression torque is assisted by an additional magnetic rest mechanism (22). 8. Actuator control device according to claim 7, characterized in that the rest mechanism (22) is provided at the edge of the electrode arc (15a1, 15a2) slightly away from the rotor (9), ie in the narrow air gap (10). 8. The control material actuating device according to claim 7, wherein said resting mechanism (22) comprises an auxiliary magnet (19a) mounted in a slot (16). 2. The excitation section (11) according to claim 1, wherein the excitation section (11) comprises a U-shaped stator having parallel rims (12a, 12b) forming a pole piece (15), the pole piece ends being spaced apart from each other and in the air gap (10). The pole piece 15 of has a slot in which the permanent magnet body 41 is mounted, the permanent magnet body forms a reset mechanism 19a and generates a magnetic flux, and the magnetic flux is a magnetized rotating body located in a space surrounded by the pole piece. And the strength and direction so that the magnet is positioned in the magnetic flux direction of the magnet body 41 at the rest position. 11. Apparatus according to claim 10, characterized in that the slot (16) is provided at the center of the pole piece (15) and forms a radial magnetic field in the air gap. 11. The control member actuating device according to claim 10, wherein the width of the air gap is constant at the position of the pole piece (15). 2. Control device as claimed in claim 1, wherein a mechanical stop (21) is provided, which stop defines a rest position (ψ _1h ) when the reset mechanism (19, 19a, 22) is used. 3. Control device actuation device according to claim 2, characterized in that an additional mechanical stop (26) is provided, which stop restricts the open position (S _op ) of the control material (4). 14. The control member operating device according to claim 13, wherein the stop portion (21) contacting the control member (4) upon return to the rest position rest position is adjustable. The stop 21 in the rest position ψ _1h has an abutment 30 provided at the end of the set screw 28, which screw is lockable and the housing 1/12. Control material operating device, characterized in that can be adjusted from the top of the. 17. The control member actuating device according to claim 16, wherein the abutment part (30) is composed of materials having different damping characteristics. 17. The control material actuating device according to claim 16, wherein the set screw (28) is configured to provide attenuation between the abutment portion (30) and the screw body. 17. The control material operating device according to claim 16, wherein the set screw (28) is adjustablely mounted in the screw hole (27) of the stop (21). 14. The control element actuating device according to claim 13, wherein the stops (21, 26) form part of the housing (1, 12). 14. Apparatus according to claim 13, characterized in that the stops (21, 26) are selectively arranged in one of two bearings (7) of the control member (4). 2. The stop 21 according to claim 1, wherein the stop 21 defining the rest position ψ _1h relative to the zero position So at which the control member 4 closes the inlet 3 is located on the side opposite to the opening direction and suppressed. The torque and the additional reset mechanism 22 are adapted to reach the rest position ψ _21h mechanically defined by the stop 21 in an image such as, for example, a power failure and a failure of the additional reset mechanism, mutually. The lymphatic groove position is deflected by the rotational angle from the zero position So in the open direction similar to that defined by the mechanical stop 21 defining the rest position ψ _1h in the opposite direction to the zero position. Control material operating device. The torque according to claim 1, wherein the torque for magnetically resetting the control member 4 to the rest position acts in the closing direction so that operation in the required dynamic range can be obtained without torque generated by electrical excitation. Control material operating device, characterized in that. ※ Note: The disclosure is based on the initial application.