Electric egr valve driven by torsion motor

A technology of twisting motors and EGR valves, applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve the problems of long response time, high production cost, and low control accuracy, and achieve short response time, simple structure, and control accuracy high effect

Inactive Publication Date: 2011-12-21
WUXI LONGSHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure is more complicated, the control precision is low and the response time is long, and the production cost is high

Method used

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  • Electric egr valve driven by torsion motor
  • Electric egr valve driven by torsion motor
  • Electric egr valve driven by torsion motor

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing.

[0014] An electric EGR valve driven by a twisting motor, comprising a valve body 12, a valve stem 13, and a valve plate 14 connected to the lower end of the valve stem 13, the lower end of the valve body 12 is an air inlet 15, and the valve stem 13 is connected with a Twist the motor.

[0015] The connecting device includes a connecting bent plate 11 connected to the upper end of the valve stem 13, an eccentric wheel 7 connected to the rotor 3 of the torsion motor, a torsion spring 4, an involute groove 8 is arranged on the eccentric wheel 7, and the connecting bent plate 11 passes through the connecting rod 10 Connect the bearing 9, the bearing 9 is arranged in the involute groove 8 of the eccentric wheel 7, one end 5 of the torsion spring 4 is connected to the stator 2 of the torsion motor, and the other end 6 of the torsion spring 4 is connected to the eccentric wheel 7....

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PUM

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Abstract

The invention discloses an electric EGR valve driven by a torsion motor, which comprises a valve body, a valve stem, and a valve plate connected to the lower end of the valve stem. The lower end of the valve body is an air inlet, and the valve stem is connected with a torsion motor through a connecting device; The connecting device includes a connecting bent plate connected to the upper end of the valve stem, an eccentric wheel connected to the rotor of the torsion motor, a torsion spring, and an involute groove is arranged on the eccentric wheel, and the connecting bent plate is connected to the bearing through the connecting rod, and the bearing is arranged on the eccentric wheel In the involute groove, one end of the torsion spring is connected to the stator of the torsion motor, and the other end of the torsion spring is connected to the eccentric wheel; the rotor of the torsion motor is connected with the eccentric wheel through the spring shaft. Install the bearing on the stem in the involute groove of the eccentric. Supply power to the torsion motor, so that the motor rotor and the eccentric wheel rotate after overcoming the turning force of the torsion spring, and the bearing slides in the involute groove of the eccentric wheel to drive the valve stem and valve plate to move downward, that is, to realize the function of opening the EGR valve . When the power supply current of the torsion motor is reduced, the rotation of the rotor and the eccentric wheel can be realized through the tension of the torsion spring, thereby driving the valve stem and the valve core to move upward, that is, the closing function of the EGR valve can be realized.

Description

technical field [0001] The invention relates to an electric EGR valve driven by a torsion motor. Background technique [0002] At present, most electric EGR valves produced in China are driven by DC motors and stepping motors, which convert the rotational motion of the motor into the linear reciprocating motion of the valve stem. However, the structure is relatively complicated, the control precision is low and the response time is long, and the production cost is high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an electric EGR valve that uses a torsion motor as a power source, has a simple structure, high control precision and short response time, and can precisely control the valve plate at different opening positions. [0004] Technical scheme of the present invention is: [0005] An electric EGR valve driven by a torsion motor includes a valve body, a valve stem, and a valve plate connected to the lowe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/07F02M26/54F02M26/67
CPCY02T10/121Y02T10/12
Inventor 曾劲平倪铭陆强徐伟孙骋业
Owner WUXI LONGSHENG TECH
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