Throttle control heat dissipation device
AssigneeAisan Kogyo Kabushiki Kaisha
InventorsHisashi Kino, Shinji Kawai
Life of this patent
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Abstract
A throttle control device includes a throttle body (1). In the throttle body, an intake passage (1a), a first space (24a), and a second space (44) are formed. In the intake passage, a throttle valve (2) is rotatably arranged. The throttle valve is rotated by a motor (4). The motor is accommodated in the first space. The second space communicates with the first space. In addition, the second space is adjacent to the intake passage through the intermediation of a wall portion (20a). This makes it possible for the heat generated in the motor to be effectively dissipated from the first space into the intake passage via the second space and the wall portion.
Claims29
A throttle control device comprising:
- a throttle body;
- an intake passage, a first space, and a second space, defined in the throttle body;
- a throttle valve rotatably arranged within the intake passage;
- and
- a motor arranged and constructed to rotate the throttle valve, the motor being accommodated in the first space,
- wherein the second space communicates with the first space, and the second space is adjacent to the intake passage through a wall portion so that heat generated in the motor is dissipated into the intake passage via the second space and the wall portion.
A throttle control device comprising:
- a throttle body;
- an intake passage, a first space, and a second space, defined in the throttle body;
- a throttle valve rotatably arranged within the intake passage;
- and
- a motor arranged and constructed to rotate the throttle valve, the motor being accommodated in the first space,
- wherein the second space communicates with the first space, and the second space is adjacent to the intake passage through a wall portion so that heat generated in the motor is dissipated into the intake passage by way of the second space and the wall portion,
- wherein the wall portion is formed integrally with the throttle body.
A throttle control device comprising:
- a throttle body;
- an intake passage, a first space, and a second space, defined in the throttle body;
- a throttle valve rotatably arranged within the intake passage;
- and
- a motor arranged and constructed to rotate the throttle valve, the motor being accommodated in the first space,
- wherein the second space communicates with the first space, and the second space is adjacent to the intake passage through a wall portion so that heat generated in the motor is dissipated into the intake passage via the second space and the wall portion,
- wherein the second space directly faces an outer surface of the motor.
Dependencies are inferred from the claim text.