Throttle devices having motors supported by elastic, metallic support members
AssigneeAisan Kogyo Kabushiki Kaisha
InventorsToru Sakurai, Tsutomu Nishitani, Sunao Kitamura
Life of this patent
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Abstract
Throttle devices may include a throttle body. First and second supports preferably support a motor for controlling the opening position of a throttle valve. The first support and the second support preferably support the motor from both sides of the motor in the longitudinal direction. At least one of the first and second supports preferably elastically supports the motor and may comprise, e.g., a metallic leaf spring disposed within the throttle body.
Claims20
An apparatus comprising:
- a throttle body defining an air intake passage;
- a throttle valve arranged and constructed to open and close the air intake passage;
- a motor arranged and constructed to rotatably drive the throttle valve;
- a first support arranged and constructed to support a first side of the motor in a longitudinal direction of the motor, wherein the first side of the motor is fixed in position both in a longitudinal direction and a diametrical direction of the motor;
- and
- a second support arranged and constructed to resiliently and elastically support a second side of the motor in the longitudinal direction of the motor.
10 An apparatus comprising:
- a throttle body defining an air intake passage;
- a throttle valve arranged and constructed to open and close the air intake passage;
- a motor arranged and constructed to rotatably drive the throttle valve, the motor having a longitudinal axis;
- a first support disposed within the throttle body and being arranged and constructed to support a first side of the motor along the longitudinal direction of the motor;
- and
- a second support disposed within the throttle body and being arranged and constructed to elastically support a second side of the motor along the longitudinal direction of the motor, the second support being made of a material that has relatively high heat conductivity.
An apparatus as in claim 10, wherein the second support is configured as a leaf spring, the leaf spring being arranged and constructed to elastically deform in order to dampen vibrations to and from the motor.
An apparatus as in claim 10, wherein the second support is configured as a substantially flat plate that extends substantially along a diametrical direction of the motor.
An apparatus comprising:
- a throttle body defining an air intake passage;
- a throttle valve arranged and constructed to open and close the air intake passage;
- a motor arranged and constructed to rotatably drive the throttle valve, the motor having a longitudinal axis;
- a first support arranged and constructed to support a first side of the motor along the longitudinal direction of the motor;
- and
- a leaf spring arranged and constructed to elastically support a second side of the motor along the longitudinal direction of the motor.
A method for fitting a motor into a throttle body of a throttle device, the motor having a first end portion and a second end portion opposite to each other along a longitudinal direction of the motor, comprising:
- fitting a support member into a motor-receiving space defined within the throttle body, the support member including a fitting hole;
- inserting the motor into the motor-receiving space;
- fitting the first end portion of the motor into the fitting hole of the support member;
- and
- fixing the second end portion of the motor in position relative to the throttle body.
Dependencies are inferred from the claim text.