Intake air control device, and vehicle including same
First Claim
1. An intake air control device for controlling the air intake of an engine mounted to a vehicle body frame of a saddle-type vehicle, the engine comprising a cylinder head and an air intake path forming body connected to the cylinder head,the intake air control device comprising:
- a valve shaft extending in the left and right direction of the vehicle body frame across an air intake path formed in the air intake path forming body, the valve shaft rotatably supported by the air intake path forming body,a butterfly-shaped throttle valve fixed to the valve shaft so as to control the opening of the air intake path,an actuator, the actuator comprising an electric motor which can demonstrate a motive power to drive the valve shaft to rotate,a throttle drum which rotates in response to a throttle operation by the vehicle operator, anda throttle operating amount sensor which detects the throttle operating amount by a vehicle operator, the throttle operating amount sensor being supported by the air intake path forming body,wherein the actuator is connected to one end of the valve shaft, and a throttle operating amount sensor is connected to an other end of the valve shaft, andwherein the throttle drum is mounted to the other end of the valve shaft so as to be capable of relative rotation, andwherein the throttle operating amount sensor, which is coaxial with the valve shaft, is supported by the air intake path forming body so as to oppose the throttle drum while being connected to the throttle drum.
1 Assignment
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Accused Products
Abstract
An intake air control device is provided in which a valve shaft extends in the left and right direction of a vehicle body frame across an air intake path, and is rotatably supported by an air intake path forming body connected to an engine body, equalizing the distances from a center of the vehicle body frame in the left and right direction to both ends of the intake air control device when arranging the air intake path forming body at the center of the vehicle body frame in the left and right direction. An actuator, which applies a motive power to drive the valve shaft, is connected to one end of the valve shaft, and a throttle operating amount sensor for detecting the throttle operating amount by a vehicle operator is supported by the air intake path forming body and connected to the other end of the valve shaft.
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Citations
14 Claims
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1. An intake air control device for controlling the air intake of an engine mounted to a vehicle body frame of a saddle-type vehicle, the engine comprising a cylinder head and an air intake path forming body connected to the cylinder head,
the intake air control device comprising: -
a valve shaft extending in the left and right direction of the vehicle body frame across an air intake path formed in the air intake path forming body, the valve shaft rotatably supported by the air intake path forming body, a butterfly-shaped throttle valve fixed to the valve shaft so as to control the opening of the air intake path, an actuator, the actuator comprising an electric motor which can demonstrate a motive power to drive the valve shaft to rotate, a throttle drum which rotates in response to a throttle operation by the vehicle operator, and a throttle operating amount sensor which detects the throttle operating amount by a vehicle operator, the throttle operating amount sensor being supported by the air intake path forming body, wherein the actuator is connected to one end of the valve shaft, and a throttle operating amount sensor is connected to an other end of the valve shaft, and wherein the throttle drum is mounted to the other end of the valve shaft so as to be capable of relative rotation, and wherein the throttle operating amount sensor, which is coaxial with the valve shaft, is supported by the air intake path forming body so as to oppose the throttle drum while being connected to the throttle drum. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An intake air control device which controls the air intake of an engine mounted to a vehicle body frame of a saddle-type vehicle, the engine comprising a cylinder head and an air intake path forming body connected to the cylinder head,
the intake air control device comprising: -
a valve shaft extending in the left and right direction of the vehicle body frame across an air intake path formed in the air intake path forming body, the valve shaft rotatably supported by the air intake path forming body, a butterfly-shaped throttle valve fixed to the valve shaft so as to control the opening of the air intake path, and an actuator connected to one end of the valve shaft, the actuator comprising an electric motor which can demonstrate a motive power to drive the valve shaft to rotate, the vehicle body frame comprising; a head pipe at a front end of the vehicle body frame, and a pair of main frames which are bifurcated from the head pipe toward the left and right and extending toward the rear, wherein the engine body is mounted to the vehicle body frame below the main frames, and the actuator is arranged between the main frames and the engine body when viewed from a lateral side of the vehicle.
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8. An intake air control device which controls the air intake of an engine mounted to a vehicle body frame of a saddle-type vehicle, the engine comprising a cylinder head and an air intake path forming body connected to the cylinder head,
the intake air control device comprising: -
a valve shaft extending in the left and right direction of the vehicle body frame across an air intake path formed in the air intake path forming body, the valve shaft rotatably supported by the air intake path forming body, a butterfly-shaped throttle valve fixed to the valve shaft so as to control the opening of the air intake path, and an actuator connected to one end of the valve shaft, the actuator comprising an electric motor which can demonstrate a motive power to drive the valve shaft to rotate, wherein the engine comprises a horizontally opposed cylinder configuration and is mounted to the vehicle body frame in an orientation in which a crank axial line extends along the fore-and-aft direction of the vehicle, and the axial line of the valve shaft and the axial line of rotation of the electric motor are arranged on an imaginary straight line arranged above the engine body in substantially parallel with the crank axial line when viewed from a lateral side of the vehicle.
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9. A saddle type vehicle employing an intake air control device, the vehicle comprising:
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a vehicle body frame, an engine mounted to the vehicle body frame, the engine comprising a cylinder head and an air intake path forming body connected to the cylinder head, and an intake air control device which controls the air intake of the engine, the intake air control device comprising; a valve shaft extending in the left and right direction of the vehicle body frame across an air intake path formed in the air intake path forming body, the valve shaft rotatably supported by the air intake path forming body, a butterfly-shaped throttle valve fixed to the valve shaft so as to control the opening of the air intake path, an actuator, the actuator comprising an electric motor which can demonstrate a motive power to drive the valve shaft to rotate, a throttle drum which rotates in response to a throttle operation by the vehicle operator and a throttle operating amount sensor which detects the throttle operating amount by a vehicle operator, the throttle operating amount sensor being supported by the air intake path forming body, wherein the actuator is connected to one end of the valve shaft, and a throttle operating amount sensor is connected to an other end of the valve shaft, wherein the throttle drum is mounted to the other end of the valve shaft so as to be capable of relative rotation, and wherein the throttle operating amount sensor, which is coaxial with the valve shaft, is supported by the air intake path forming body so as to oppose the throttle drum while being connected to the throttle drum. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification