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US 6,789,526 B2Granted
Apparatus for controlling throttle valve and manufacturing method for the same and motor
AssigneeDenso Corporation
InventorsKatsuya Torii, Yutaka Kawai, Yuichiro Miura
Life of this patent
Estimating the term…
Abstract
An apparatus for controlling a throttle valve has a body member made of resin. The body member contains a motor for controlling a throttle valve. The motor has a yoke as a one of components thereof. The yoke is exposed to an intake passage at a slightly upstream side of the throttle valve. According to the arrangement, heat radiation from the motor is improved by intake airflow, and the throttle valve can be prevented from an icing malfunction.
Claims10
An apparatus for controlling a throttle valve, comprising:
- a valve which regulates an air amount flowing in an intake pipe of an internal combustion engine in accordance with an opening degree;
- and
- a motor which operates the throttle valve to change the opening degree, wherein
- at least a part of a yoke of the motor is arranged to dissipate heat to the air, wherein the part of the yoke is directly exposed to the air in the intake pipe, and
- the part of the yoke is exposed at a vicinity of the valve for preventing the valve from an icing.
2 more elements
Dependencies are inferred from the claim text.