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Throttle device

A technology of throttle valve and throttle valve body, which is applied in the charging system, combustion air/combustion-air treatment, engine components, etc., can solve the problem of small rotation radius of the detection part, the overall width of the throttle valve device becomes larger, and the angle position cannot be obtained. problems such as detection accuracy, to achieve the effect of improving the degree of freedom of size, improving the degree of freedom of compactness and arrangement, and suppressing the overall width

Inactive Publication Date: 2019-07-30
MIKUNI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Not only that, because the throttle position sensor not only detects the rotation of the throttle shaft directly connected to the throttle, but also detects the rotation of the sensor shaft linked to the throttle shaft via gears, therefore, due to backlash and other error factors The detection accuracy of the angular position (rotational displacement) cannot be sufficiently improved
[0015] In addition, according to the throttle device described in Patent Documents 2 and 3, a magnet or the like is arranged on the shaft end of the rotor such as the throttle shaft and the sensor shaft, and a sensor for rotation detection is provided on the side of the fixed member facing it. Therefore, Not only does the overall width of the throttle device in the direction of the cylinder arrangement of the engine still increase, but also because the rotation radius of the detection part is small, etc., it is still not possible to obtain sufficient angular position detection accuracy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0034] Figure 1 to Figure 3 The configuration of the throttle device according to the first embodiment of the present invention is shown.

[0035] First, its structure will be described.

[0036] Such as figure 1 and figure 2 As shown, the throttle device 10 of the present embodiment is a multi-unit throttle device mounted on a multi-cylinder internal combustion engine, for example, a four-cylinder engine 1 for a two-wheeled vehicle. In addition, the engine 1 will not be described in detail here, and the plurality of cylinders 1c are mounted in a horizontal state along the front-rear direction (perpendicular to the vehicle width direction) of the two-wheeled vehicle so as to be adjacent to each other in the left-right direction (vehicle width direction). figure 2 direction of the paper) extending the body frame. In addition, if image 3 As shown, a pair of throttle devices 10 (10A, 10B in the figure) are arranged in parallel on the engine 1 so as to be adjacent to each...

no. 2 Embodiment approach

[0068] Figure 5 The configuration of the throttle device according to the second embodiment of the present invention is shown.

[0069] The throttle device 10 of the present embodiment is arranged in such a manner that the motors 15 and the position sensors 30 of the left and right throttle devices 10A, 10B corresponding to every two cylinders on the left and right of the engine 1 are oppositely arranged. figure 2 The shown first embodiment is a reversed throttle device.

[0070] The configuration other than that is the same as that of the above-mentioned first embodiment, and also in this embodiment, the same effect as that of the above-mentioned first embodiment can be obtained.

[0071] In the present embodiment, as in the first embodiment, the overall width W2 of the engine 1 can be suppressed, and a highly mountable throttle device that can be easily arranged in the body frame of the motorcycle can be provided.

no. 3 Embodiment approach

[0073] Figure 6 The configuration of the throttle device according to the third embodiment of the present invention is shown.

[0074] In the throttle device 10 of the present embodiment, with figure 2 In the same manner as in the first embodiment shown, the rotation transmission part (gear meshing part) of the rotation transmission mechanism 20 is arranged at a position adjacent to the first-stage throttle body 11f and the second-stage throttle body 11s, and is connected to the left and right sides of the engine 1. The left and right throttle devices 10A, 10B corresponding to every two cylinders are linearly arranged. Further, with respect to each rotary transmission mechanism 20 , the motor 15 as an actuator is arranged on the inner side in the vehicle width direction, and each position sensor 30 is arranged on the outer side in the vehicle width direction.

[0075] However, in the first embodiment, the motor cover portion 11d that accommodates the motor 15 is arranged w...

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Abstract

The present invention provides a throttle device that can be compacted and expanded in freedom of installation without arranging the throttle position sensor to protrude beyond the total width of thethrottle body. The throttle device, including: a throttle valve (13) disposed in a plurality of intake passages (12) of a throttle body (11); a throttle shaft (14) supporting the throttle valve (13);a motor (15) for driving the throttle valve (13) to open and close through the throttle shaft(14); a rotation transmission mechanism (20) interposed between the motor (15) and the throttle shaft (14);and a position sensor to detect a displacement in the rotation transmission mechanism (20). The rotation transmission mechanism (20) is disposed at a position where the first and the second throttlebodies (11f, 11s) are adjacent, the motor (15) is disposed within an installation width Ws of either one of the first and the second throttle bodies (11f, 11s), and the throttle opening degree sensor(30) is disposed within an installation width Wt of the other one of the first and the second throttle bodies (11f, 11s).

Description

technical field [0001] The present invention relates to a throttle device, in particular to a multi-mounted throttle device suitable for controlling the opening of multiple throttle valves on an intake path of an engine through a common actuator. Background technique [0002] In the electronic throttle device of a multi-cylinder internal combustion engine, especially the throttle device of an engine mounted on a two-wheeled vehicle, a control-by-wire multi-connected throttle device is often used, which is driven by a common electric actuator. Multiple throttle valves in multiple intake passages near the intake port are linked to each other. [0003] As such a throttle device, for example, a throttle device is known in which a throttle shaft supporting the throttle valve is driven by a motor with a speed reduction mechanism, and on the other hand, the rotation (angular displacement) of the throttle shaft is A sensor shaft arranged parallel thereto performs gear transmission,...

Claims

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Application Information

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IPC IPC(8): F02D9/02F02D9/10F02D11/10
CPCF02D9/02F02D9/10F02D11/10F02D2009/0294F02B61/02F02D9/105F02D9/1095F02M35/162
Inventor 滨崎大辅
Owner MIKUNI CORP