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flow control valve

A fluid control valve and spool technology, applied in engine control, fuel injection control, valve lift, etc., can solve the problems of large flow influence and small control flow, achieve low cost, reduce sliding resistance, and prevent openings The effect of the expansion of the area

Active Publication Date: 2016-10-26
MIKUNI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in ISCV, since the control flow rate is small as mentioned above, even if there is a little sloshing, the influence on the flow rate is large.

Method used

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Embodiment Construction

[0045] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0046] like figure 1 As shown, the flow rate control valve of this embodiment has a motor-side main body 1 and a valve-side main body 2 made of resin. A motor (stepping motor) 11 is provided on the motor-side main body 1 side, and a fluid (air) valve 21 is provided on the valve-side main body 2 side.

[0047] In the motor side main body 1, the main body 12 is formed in a cylindrical shape with a cover and a bottom, and on the inner peripheral surface side, along the axial direction of the main body 12, there are provided along the inner peripheral surface of the main body 12. The two annular coils 3 serve as the stator of the motor. The coil 3 is supported by the coil support member 4 in a state wound on the coil bobbin 5 .

[0048] Inside the annular coil 3 is provided a rotating body 6 in which a cylindrical magnet 7 is fixed to the outer periphery of the rotating ...

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PUM

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Abstract

Provided is a flow control valve that has a simplified rattle-prevention structure, can maintain a low controlled flow rate, and can be reduced in size. This flow control valve is provided with the following: a rotor (6) that is provided around a rotating shaft (8) and, due to electromagnetic forces, rotates together with said rotating shaft (8) as a single unit; a valve element (9) that is screwed into an internal thread (93) at one end of the rotating shaft (8) and, as the rotating shaft (8) rotates, moves along the axis of the rotating shaft (8) to open and close an opening through which a fluid passes; a shaft-support member (14) that is provided at the other end of the rotating shaft (8), rotatably supports the rotating shaft (8), and restricts movement towards said other end of the rotating shaft (8); and a compression coil spring (10) that biases the valve element (9) towards the other end of the rotating shaft (8) along the axis of the rotating shaft (8).

Description

technical field [0001] The present invention relates to a flow rate control valve including a motor and a valve that operates by rotation of the motor to control the flow rate of fluid. Background technique [0002] In the past, in vehicles such as automobiles and motorcycles, for example, in the case of an engine that controls fuel injection and ignition injection by an electronic control device, another throttle valve that is electronically controlled, that is, is provided next to the throttle valve. The ISCV (idle speed control valve) performs control to increase the low speed when the air conditioner is operating, or performs control to stabilize the idle speed operation. That is, the ISCV controls the amount of intake air to the engine, for example, when the vehicle is idling by reducing the throttle valve, and controls the engine so that it reaches the target rotational speed during idling. [0003] The ISCV includes, for example, a stepping motor as an actuator for a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M69/32F16K31/04
CPCF02D9/12F16K1/38F16K1/50F16K31/04
Inventor 坂口真庆
Owner MIKUNI CORP