WO2020250422A1

WO2020250422A1 - Throttle device

Info

Publication number: WO2020250422A1
Application number: PCT/JP2019/023666
Authority: WO
Inventors: 准清野
Original assignee: 株式会社ミクニ
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-12-17
Also published as: JP7320605B2; JPWO2020250422A1

Abstract

A throttle device comprises: a first power transmission mechanism 12 for transmitting the power of a first motor 8 to a throttle shaft of a first throttle valve 6a on one end side and a throttle shaft of a second throttle valve 6b on the other end side; and a second power transmission mechanism 14 for transmitting power of a second motor 10 to at least one throttle shaft of other throttle valves 6c and 6d, wherein a first throttle opening degree sensor 16 for detecting the opening degree of the first throttle valve and the opening degree of the second throttle valve and/or a second throttle opening degree sensor 18 for detecting the opening degree of at least one throttle valve is arranged at a position shifted from a row 4R of throttle bodies arranged side by side along a first direction to a direction intersecting the first direction.

Description

Throttle device

This disclosure relates to a throttle device.

Conventionally, a throttle device including three or more slot bodies may be adopted to adjust the amount of intake air flowing into the engine.

For example, when a throttle device including three or more throttle bodies is attached to the engine of a two-wheeled vehicle, the slot bodies at both ends are easily cooled by the influence of the outside air, while the inner throttle body is not easily affected by the outside air, so it is relative. It tends to get hot.

In addition, when the pipes connected to three or more throttle bodies are assembled in one collecting pipe, the pipes between the throttle bodies at both ends and one collecting pipe are assembled with the inner throttle body. It tends to be longer than the pipe between the pipes. Therefore, the intake inertia effect may differ between the intake air passing through the throttle bodies at both ends and the intake air passing through the inner throttle body.

In this way, in a throttle device including three or more throttle bodies, the operating environment may differ between the throttle bodies at both ends and the throttle body inside, so the throttle valves corresponding to the throttle bodies at both ends and the throttle body inside If the corresponding throttle valve is controlled in the same way by one motor, the air-fuel ratio of the engine may vary from cylinder to cylinder.

In Patent Document 1, in order to solve such a problem, the throttle valves corresponding to the throttle bodies at both ends are driven by one motor, and the throttle valves corresponding to the inner throttle body are driven by another motor. The throttle device configured in is disclosed.

Japanese Unexamined Patent Publication No. 2012-7608

Generally, the throttle device is provided with a throttle opening sensor for detecting the opening degree of the throttle valve, and the opening degree of the throttle valve is adjusted by the motor based on the detection result of the throttle opening sensor.

In the throttle device described in Patent Document 1, throttle opening sensors for detecting the opening degree of the throttle valves corresponding to the throttle bodies at both ends are arranged at one end of the row of the throttle bodies and are located on the inner throttle body. The corresponding throttle opening sensor is arranged between the throttle body of one of the throttle bodies at both ends and the throttle body inside.

For this reason, by providing these two throttle opening sensors, the size of the throttle device along the direction in which the throttle bodies are lined up has been increased.

In view of the above circumstances, at least one embodiment of the present invention provides a throttle device capable of reducing the size along the direction in which the throttle bodies are lined up while suppressing the variation in the air-fuel ratio of the engine for each cylinder. The purpose.

(1) The throttle device according to at least one embodiment of the present invention is
A row of tubular throttle bodies lined up along the first direction, the first throttle body arranged on one end side in the first direction and the second throttle body arranged on the other end side in the first direction. , At least one throttle body arranged between the first throttle body and the second throttle body, and a row of throttle bodies including.
A first throttle valve arranged inside the first throttle body, a second throttle valve arranged inside the second throttle body, and at least one throttle valve arranged inside at least one throttle body. With multiple throttle valves, including
With the first motor
With the second motor
A first power transmission mechanism for transmitting the power of the first motor to the throttle shaft of the first throttle valve and the throttle shaft of the second throttle valve, and
A second power transmission mechanism for transmitting the power of the second motor to the throttle shaft of at least one throttle valve,
A first throttle opening sensor for detecting the opening of the first throttle valve and the opening of the second throttle valve, and
A second throttle opening sensor for detecting the opening of at least one throttle valve, and
With
At least one of the first throttle opening sensor and the second throttle opening sensor is arranged at a position deviated from the row of the throttle bodies in the direction intersecting the first direction.

(2) In some embodiments, in the throttle device according to (1) above,
Each of the first throttle opening sensor and the second throttle opening sensor may be arranged at positions deviated from the row of the throttle bodies in the direction intersecting the first direction.

(3) In some embodiments, in the throttle device according to (2) above, the throttle device
When the plane including the first direction of the plane including the axis of the first throttle body is used as the reference plane,
Each of the first throttle opening sensor, the second throttle opening sensor, the first motor and the second motor may be arranged on the same direction side with respect to the reference plane.

(4) In some embodiments, in the throttle device according to (3) above,
Each of the first throttle opening sensor, the second throttle opening sensor, the first motor and the second motor may be arranged on a first straight line along the first direction.

(5) In some embodiments, in the throttle device according to any one of (1) to (4) above.
The first power transmission mechanism includes a first power transmission unit for transmitting the power of the first motor to the throttle shaft of the first throttle valve.
The first power transmission unit may be arranged between the first throttle body and at least one throttle body.

(6) In some embodiments, in the throttle device according to (5) above,
The first power transmission mechanism is
The first shaft extending along the first direction and
A second power transmission unit, which is arranged on the opposite side of the first throttle valve from the first power transmission unit and connects the throttle shaft of the first throttle valve and one end side of the first shaft,
A third power transmission unit that connects the other end of the first shaft and the throttle shaft of the second throttle valve,
May include.

(7) In some embodiments, in the throttle device according to (6) above,
The length of the first shaft may be longer than the distance between the axis of the first throttle body and the axis of the second throttle body.

(8) In some embodiments, in the throttle device according to (6) or (7) above.
The first throttle opening degree sensor may be configured to detect the opening degree of the first throttle valve and the opening degree of the second throttle valve via the third power transmission unit.

(9) In some embodiments, in the throttle device according to any one of (6) to (8) above.
The second power transmission mechanism includes a fourth power transmission unit for transmitting the power of the second motor to the throttle shaft of at least one throttle valve.
The fourth power transmission unit is arranged between the second throttle body and at least one throttle body.
The fourth power transmission unit may be arranged on the side opposite to the third power transmission unit with the second throttle body interposed therebetween.

(10) In some embodiments, in the throttle device according to (9) above,
The at least one throttle body includes a third throttle body adjacent to the first throttle body and a fourth throttle body arranged between the third throttle body and the second throttle body.
The second power transmission mechanism may include a fifth power transmission unit that connects the third throttle body and the fourth throttle body between the third throttle body and the fourth throttle body.

(11) In some embodiments, in the throttle device according to (10) above,
The second throttle opening sensor detects the opening of the throttle valve provided inside the third throttle body and the opening of the throttle valve provided inside the fourth throttle body via the fifth power transmission unit. It may be configured to do so.

According to at least one embodiment of the present invention, there is provided a throttle device capable of miniaturizing the dimensions along the direction in which the throttle bodies are lined up while suppressing variations in the air-fuel ratio of the engine for each cylinder.

It is a front view of the throttle device 2 which concerns on one Embodiment. It is a figure for demonstrating the detailed structure of the throttle device 2 shown in FIG. It is a right side view of the throttle device 2 shown in FIG. It is a left side view of the throttle device 2 shown in FIG. It is a partially enlarged view of the throttle device 2 shown in FIG.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention to this, but are merely explanatory examples. Absent.
For example, expressions that represent relative or absolute arrangements such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric" or "coaxial" are exact. Not only does it represent such an arrangement, but it also represents a state of relative displacement with tolerances or angles and distances to the extent that the same function can be obtained.
For example, expressions such as "same", "equal", and "homogeneous" that indicate that things are in the same state not only represent exactly the same state, but also have tolerances or differences to the extent that the same function can be obtained. It shall also represent the state of existence.
For example, an expression representing a shape such as a quadrangular shape or a cylindrical shape not only represents a shape such as a quadrangular shape or a cylindrical shape in a geometrically strict sense, but also an uneven portion or chamfering within a range in which the same effect can be obtained. The shape including the part and the like shall also be represented.
On the other hand, the expressions "equipped", "equipped", "equipped", "included", or "have" one component are not exclusive expressions that exclude the existence of other components.

FIG. 1 is a front view of the throttle device 2 according to the embodiment. The throttle device 2 is connected to the intake side of the multi-cylinder engine, for example, in order to adjust the inflow amount of the intake air to the multi-cylinder engine (not shown) mounted on the motorcycle. The alternate long and short dash line shown in FIG. 1 indicates the position of the vehicle frame 3 of the two-wheeled vehicle when the throttle device 2 is mounted on the two-wheeled vehicle.

For example, as shown in FIG. 1, the throttle device 2 includes a row 4R of a throttle body, a plurality of throttle valves 6, a first motor 8, a second motor 10, a first power transmission mechanism 12, a second power transmission mechanism 14, and a first. A throttle opening sensor 16 and a second throttle opening sensor 18 are provided.

The row 4R of the throttle bodies includes a plurality of throttle bodies 4a to 4d arranged along the direction W as the first direction (in the illustrated exemplary embodiment, the width direction of the vehicle, that is, the width direction of the throttle device 2). Each of the throttle bodies 4a to 4d is formed in a tubular shape. The rows 4R of the throttle bodies include a first throttle body 4a arranged on one end side of the direction W, a second throttle body 4b arranged on the other end side of the direction W, a first throttle body 4a, and a second throttle body. Includes at least one throttle body arranged between 4b. In the illustrated embodiment, the row 4R of the throttle bodies includes, as at least one throttle body, a third throttle body 4c adjacent to the first throttle body 4a and a fourth throttle body 4d adjacent to the second throttle body 4b. .. Further, the second throttle body 4b and the third throttle body 4c are adjacent to each other.

The plurality of throttle valves 6 include a first throttle valve 6a arranged inside the first throttle body 4a, a second throttle valve 6b arranged inside the second throttle body 4b, and at least one throttle body 4c. Includes at least one

throttle valves

6c, 6d, respectively, located inside 4d. In the illustrated embodiment, the plurality of throttle valves 6 are arranged inside the third throttle valve 6c and the fourth throttle body 4d arranged inside the third throttle body 4c as at least one

throttle valve

6c, 6d. Also includes a fourth throttle valve 6d.

The first motor 8 is arranged below the first throttle body 4a. The second motor 10 is arranged below the fourth throttle body 4d. In this specification, among the directions orthogonal to the reference plane P described later, the first motor 8, the second motor 10, the first throttle opening sensor 16 and the second throttle opening sensor 18 are located from the reference plane P. The direction toward the side to be arranged is "downward", and the opposite direction is "upward".

The first power transmission mechanism 12 is configured to transmit the power of the first motor 8 to the throttle shaft 20a to which the first throttle valve 6a is fixed and the throttle shaft 20b to which the second throttle valve 6b is fixed. .. Each of the throttle shaft 20a and the throttle shaft 20b extends along the direction W.

The second power transmission mechanism 14 is configured to transmit the power of the second motor 10 to the throttle shaft 20c to which the third throttle valve 6c is fixed and the throttle shaft 20d to which the fourth throttle valve 6d is fixed. .. Each of the throttle shaft 20c and the throttle shaft 20d extends along the direction W.

The first throttle opening sensor 16 is arranged below the second throttle body 4b. The first throttle opening sensor 16 is configured to detect the opening degree of the first throttle valve 6a and detect the opening degree of the second throttle valve 6b based on the rotation angle of the throttle shaft 20b of the second throttle valve 6b. Has been done.

The second throttle opening sensor 18 is arranged below the third throttle body 4c. The second throttle opening sensor 18 is configured to detect the opening degree of the third throttle valve 6c and detect the opening degree of the fourth throttle valve 6d based on the rotation angle of the throttle shaft 20d of the fourth throttle valve 6d. Has been done.

In this way, each of the first throttle opening sensor 16 and the second throttle opening sensor 18 is arranged at positions deviated from the row 4R of the throttle body in the direction intersecting the direction W (downward in the illustrated embodiment). ing.

Further, when the plane including the direction W among the planes including the axis C1 of the first throttle body 4a (the central axis of the inner peripheral surface of the tubular first throttle body 4a) is set as the reference plane P, the first throttle is opened. Each of the degree sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 is arranged on the same direction side (lower side in the illustrated form) with respect to the reference plane P. Each of the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 is arranged on the first straight line Q along the direction W. That is, at least a part of each of the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 overlaps each other at the same position in the direction W view. Is placed in.

Next, a configuration example of the first power transmission mechanism 12 will be described.
For example, as shown in FIG. 1, the first power transmission mechanism 12 includes a drive gear 22 as a first power transmission unit, a first shaft 24, a link mechanism 26 as a second power transmission unit, and a third power transmission unit. The link mechanism 28 is included.

The drive gear 22 is arranged between the first throttle body 4a and the third throttle body 4c, is fixed to the end of the throttle shaft 20a of the first throttle valve 6a, and rotates integrally with the throttle shaft 20a. It is configured. The drive gear 22 is connected to the first motor 8 via a gear (not shown), and transmits the power of the first motor 8 to the throttle shaft 20a of the first throttle valve 6a.

The first shaft 24 extends along the direction W from below the first throttle body 4a to below the second throttle body 4b.

The link mechanism 26 is arranged on the opposite side of the drive gear 22 with the first throttle valve 6a interposed therebetween. The link mechanism 26 is configured to connect the throttle shaft 20a of the first throttle valve 6a and the one end side 24a (one end portion) of the first shaft 24 to transmit power from the throttle shaft 20a to the first shaft 24. ing.

The link mechanism 28 is arranged on the opposite side of the link mechanism 26 with the throttle row 4R in between. The link mechanism 28 connects the other end side 24b (the other end) of the first shaft 24 and the throttle shaft 20b of the second throttle valve 6b so as to transmit power from the first shaft 24 to the throttle shaft 20b. It is configured.

FIG. 2 is a diagram for explaining a detailed configuration of the throttle device 2 shown in FIG.
As shown in FIG. 2, the length L1 of the first shaft 24 is longer than the distance L2 between the axis C1 of the first throttle body 4a and the axis C2 of the second throttle body 4b, and the length of the row 4R of the throttle body. It is longer than L3.

FIG. 3 is a right side view of the throttle device 2 shown in FIG.
As shown in FIG. 3, the link mechanism 26 includes a link 32, a link 34, and a link 36.

One end 32a of the link 32 is fixed to the end of the throttle shaft 20a so that the link 32 rotates integrally with the throttle shaft 20a around the rotation axis O1 of the throttle shaft 20a of the first throttle valve 6a. There is.

One end 34a of the link 34 is rotatably connected to the other end 32b of the link 32 via a pin 33, and the other end 34b of the link 34 is connected to the other end 36a of the link 36 via a pin 35. Is rotatably connected.

The other end 36b of the link 36 is fixed to one end side 24a of the first shaft 24 so that the link 36 rotates integrally with the first shaft 24 around the rotation axis O2 of the first shaft 24. ..

According to this configuration, the rotation of the throttle shaft 20a of the first throttle valve 6a is sequentially transmitted to the link 32, the link 34, the link 36 and the first shaft 24, so that power is transmitted from the throttle shaft 20a to the first shaft 24. Be transmitted.

FIG. 4 is a left side view of the throttle device 2 shown in FIG.
As shown in FIG. 4, the link mechanism 28 includes a link 38, a link 40, a link 42, a link 44, a link 46, and a sensor shaft 48.
One end 38a of the link 38 is fixed to the other end 24b of the first shaft 24 so that the link 38 rotates integrally with the first shaft 24 around the rotation axis O2 of the first shaft 24. ..

One end 40a of the link 40 is rotatably connected to the other end 38b of the link 38 via a pin 41, and the other end 40b of the link 40 is connected to the other end 42a of the link 42 via a pin 43. Is rotatably connected.

The intermediate portion 42b of the link 42 is fixed to the end of the throttle shaft 20b so that the link 42 rotates around the rotation axis O3 of the throttle shaft 20b of the second throttle valve 6b.

One end 44a of the link 44 is rotatably supported by the other end 42c of the link 42 via a pin 45. The other end 44b of the link 44 is rotatably supported by one end 46a of the link 46 via a pin 47.

At the other end 46b of the link 46, one end 48a of the sensor shaft 48 is fixed so that the link 46 rotates integrally with the sensor shaft 48 around the rotation axis O4 of the sensor shaft 48.

According to this configuration, the rotation of the first shaft 24 is transmitted to the link 38, the link 40, the link 42, and the throttle shaft 20b in this order, so that the power is transmitted from the first shaft 24 to the throttle shaft 20b.

In the throttle device 2, the link mechanism 26, the first shaft 24, and the link mechanism 28 rotate the sensor shaft 48, the throttle valve 6a, and the throttle valve 6b at the same rotation angle (phase).

The first throttle opening sensor 16 detects the opening angle of the first throttle valve 6a and the second throttle valve 6a by detecting the rotation angle of the sensor shaft 48 of the link mechanism 28 using, for example, a magnetic sensor, a potentiometer, or an optical rotary encoder. It is configured to detect the opening degree of the throttle valve 6b. That is, the opening degree of the first throttle valve 6a and the opening degree of the second throttle valve 6b are detected by the first throttle opening degree sensor 16 via the link mechanism 28.

Next, a configuration example of the second power transmission mechanism 14 will be described.
For example, as shown in FIG. 1, the second power transmission mechanism 14 includes a drive gear 50 as a fourth power transmission unit and a link mechanism 52 as a fifth power transmission unit.

The drive gear 50 is arranged between the second throttle body 4b and the fourth throttle body 4d, is fixed to the end of the throttle shaft 20d of the fourth throttle valve 6d, and rotates integrally with the throttle shaft 20d. It is configured. The drive gear 50 is connected to the second motor 10 via a gear (not shown), and transmits the power of the second motor 10 to the throttle shaft 20d of the fourth throttle valve 6d. The drive gear 50 is arranged on the side opposite to the link mechanism 28 with the second throttle body 4b interposed therebetween.

The link mechanism 52 is arranged between the third throttle body 4c and the fourth throttle body 4d. The link mechanism 52 is configured to connect the throttle shaft 20c of the third throttle body 4c and the throttle shaft 20d of the fourth throttle body 4d to transmit power from the throttle shaft 20d to the throttle shaft 20c.

FIG. 5 is a partially enlarged view of the throttle device 2 shown in FIG.
As shown in FIG. 5, the link mechanism 52 includes a link 54, a pin 56, a link 58, a link 60, a link 62, and a sensor shaft 64.
One end of the link 54 is fixed to the end of the throttle shaft 20d so that the link 54 rotates integrally with the throttle shaft 20d around the rotation axis of the fourth throttle valve 6d.

The pin 56 connects the other end of the link 54 and one end of the link 58 so that the link 54 and the link 58 rotate integrally.

The central portion of the link 58 is fixed to the end of the throttle shaft 20c so that the link 58 rotates around the rotation axis of the third throttle valve 6c.

One end of the link 60 is rotatably supported by the other end of the link 58 via a pin (not shown). The other end of the link 60 is rotatably supported by one end of the link 62 via a pin (not shown).

The other end of the link 62 is fixed to one end of the sensor shaft 64 so that the link 62 rotates integrally with the sensor shaft 64 around the rotation axis of the sensor shaft 64.

According to this configuration, the rotation of the throttle shaft 20d of the fourth throttle valve 6d is transmitted to the link 54, the pin 56, the link 58 and the throttle shaft 20c in this order, so that power is transmitted from the throttle shaft 20d to the throttle shaft 20c. Will be done.

In the throttle device 2, the sensor shaft 64, the throttle valve 6c, and the throttle valve 6d are rotated at the same rotation angle (phase) by the link mechanism 52.

The second throttle opening sensor 18 detects the rotation angle of the sensor shaft 64 fixed to the other end of the link 62 using, for example, a magnetic sensor, a potentiometer, or an optical rotary encoder, thereby detecting the rotation angle of the third throttle valve 6c. It is configured to detect the opening degree of the fourth throttle valve 6d and the opening degree of the fourth throttle valve 6d. That is, the opening degree of the third throttle valve 6c and the opening degree of the fourth throttle valve 6d are detected by the second throttle opening degree sensor 18 via the link mechanism 52.

Next, the effect obtained by the throttle device 2 shown above will be described.
As described above, in a throttle device including three or more throttle bodies, the operating environment may differ between the throttle bodies at both ends and the throttle body inside, so the throttle valves corresponding to the throttle bodies at both ends and the throttle body inside If the throttle valve corresponding to the above is controlled in the same way by one motor, the air-fuel ratio of the engine may vary from cylinder to cylinder.

On the other hand, in the throttle device 2, as shown in FIG. 1, the

throttle valves

6a and 6b corresponding to the

throttle bodies

4a and 4b at both ends are synchronized with each other via the first power transmission mechanism 12 by the first motor 8. It is configured to be driven and to be driven by the second motor 10 in synchronization with the

throttle valves

6c and 6d corresponding to the

inner throttle bodies

4c and 4d via the second power transmission mechanism 14. As a result, even when the operating environments of the

throttle bodies

4a and 4b at both ends and the

throttle bodies

4c and 4d inside are different, it is possible to suppress variations in the air-fuel ratio of the engine for each cylinder.

Further, the total width w0 of the throttle device 2 in the direction W is easily affected by the length L1 of the rows 4R of the throttle bodies arranged along the direction W. Therefore, as described above, each of the first throttle opening sensor 16 and the second throttle opening sensor 18 is provided at a position deviated from the row 4R of the throttle body in the direction intersecting the direction W, so that the direction W can be changed. The throttle bodies 4a to 4d are lined up so that the width of the first throttle opening sensor 16 and the width of the second throttle opening sensor 18 in the direction W do not affect the total width w0 of the throttle device 2 in the direction W. The size of the throttle device 2 along the direction W can be reduced. As a result, it is possible to prevent the throttle device 2 from interfering with the frame and peripheral parts of the motorcycle. Further, it becomes easy to set the pitch (bore pitch) of the throttle bodies 4a to 4d evenly, and it becomes easy to set the pitch of the throttle bodies 4a to 4d according to the pitch of the cylinder of the engine (not shown). In addition, the degree of freedom in layout of peripheral parts on the vehicle side can be improved.

Further, as shown in FIG. 1, each of the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 is on the same direction side with respect to the reference plane P (not shown). It is arranged on the lower side in the form of As a result, as compared with the case where the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 are dispersedly arranged on both sides with respect to the reference surface P, The size of the throttle device 2 in the direction orthogonal to the reference plane P can be reduced.

Further, as shown in FIG. 1, each of the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 is on the first straight line Q along the first direction. Is located in. As a result, compared with the case where each of the first throttle opening sensor 16, the second throttle opening sensor 18, the first motor 8 and the second motor 10 is not arranged on the first straight line Q along the first direction. Therefore, the dimensions of the throttle device 2 in the direction orthogonal to the reference plane P and the dimensions of the throttle device 2 in the axial direction of the first throttle body 4a (the axial directions of the throttle bodies 4a to 4d) can be reduced.

Further, as shown in FIG. 1, a drive gear 22 for transmitting the power of the first motor 8 to the throttle shaft 20a of the first throttle valve 6a is located between the first throttle body 4a and the third throttle body 4c. Have been placed. As a result, for example, in order to match the pitch (bore pitch) of each throttle body 4a to 4d with the pitch of the engine cylinder, the space provided between the first throttle body 4a and the third throttle body 4c is installed in the drive gear 22. It can be used as a space. As a result, the throttle device 2 can be miniaturized.

Further, as shown in FIG. 1, the first power transmission mechanism 12 is arranged on the opposite side of the drive gear 22 with the first shaft 24 extending along the direction W and the first throttle valve 6a interposed therebetween. The link mechanism 26 that connects the throttle shaft 20a of the first throttle valve 6a and the one end side 24a of the first shaft 24, and the other end side 24b of the first shaft 24 and the throttle shaft 20b of the second throttle valve 6b are connected. The link mechanism 28 and the like are included. As a result, the power of the first motor 8 can be transmitted from the first throttle valve 6a to the second throttle valve 6b with a simple configuration. Therefore, it is possible to realize the throttle device 2 that achieves both the above-mentioned effects and simplification of the configuration.

Further, as shown in FIG. 2, since the length L1 of the first shaft 24 is longer than the distance L2 between the axis C1 of the first throttle body 4a and the axis C2 of the second throttle body 4b, the distance L1 is the distance L2. The distance between one end side 24a of the first shaft and the link mechanism 26 side of the throttle shaft 20a is shortened, and the other end side 24b of the first shaft and the link mechanism 28 side of the throttle shaft 20b are shorter than those of the shorter one. The distance can be shortened. This simplifies the configuration of the link mechanism 26 that connects the throttle shaft 20a and the one end side 24a of the first shaft 24, and also simplifies the configuration of the other end side 24b of the first shaft 24 and the throttle shaft 20b of the second throttle valve 6b. The configuration of the link mechanism 28 for connecting the above can be simplified.

Further, as shown in FIG. 1, the first throttle opening sensor 16 sets the opening degree of the first throttle valve 6a and the opening degree of the second throttle valve 6b to the power from the throttle shaft 20a to the throttle shaft 20b. It is configured to detect via a link mechanism 28 used for transmission. As a result, the configuration of the throttle device 2 is configured as compared with the case where the opening degree of the first throttle valve 6a and the opening degree of the second throttle valve 6b are detected via a link mechanism or the like provided separately from the link mechanism 28. It can be simplified.

Further, as shown in FIG. 1, a drive gear 50 for transmitting the power of the second motor 10 to the throttle shaft 20d of the fourth throttle valve 6d is located between the second throttle body 4b and the fourth throttle body 4d. Have been placed. As a result, for example, in order to match the pitch (bore pitch) of each throttle body 4a to 4d with the pitch of the engine cylinder, the space provided between the second throttle body 4b and the fourth throttle body 4d is installed in the drive gear 50. It can be used as a space. As a result, the throttle device 2 can be miniaturized.

Further, as shown in FIG. 1, a link mechanism 52 that connects the third throttle valve 6c and the fourth throttle valve 6d is provided between the third throttle body 4c and the fourth throttle body 4d that are adjacent to each other. Therefore, the power transmitted from the second motor 10 to the fourth throttle valve 6d via the drive gear 50 can be transmitted to the third throttle valve 6c with a simple configuration. As a result, the configuration of the throttle device 2 can be simplified.

Further, as shown in FIG. 1, the second throttle opening sensor 18 transmits the opening degree of the third throttle valve 6c and the opening degree of the fourth throttle valve 6d from the throttle shaft 20d to the throttle shaft 20c. It is configured to detect via the link mechanism 52 used in the above. Therefore, the configuration of the throttle device 2 is configured as compared with the case where the opening degree of the third throttle valve 6c and the opening degree of the fourth throttle valve 6d are detected via a link mechanism or the like provided separately from the link mechanism 52. It can be simplified.

The present invention is not limited to the above-described embodiment, and includes a modification of the above-described embodiment and a combination of these embodiments as appropriate.

For example, in the above-described embodiment, each of the first throttle opening sensor 16 and the second throttle opening sensor 18 is provided at a position deviated from the row 4R of the throttle body in a direction intersecting the direction W. Only the throttle opening sensor 16 may be provided at a position deviated from the row 4R of the throttle body in the direction intersecting the direction W, or only the second throttle opening sensor 18 intersects the direction W from the row 4R of the throttle body. It may be provided at a position deviated in the direction. That is, by providing at least one of the first throttle opening sensor 16 and the second throttle opening sensor 18 at a position deviated from the row 4R of the throttle body in the direction intersecting the direction W, the first throttle opening sensor 16 The size of the throttle device 2 along the direction W in which the throttle bodies 4 are lined up is reduced so that at least one of the width of the throttle device 2 and the width of the second throttle opening sensor 18 does not affect the total width w0 of the throttle device 2. can do.

Further, in the above-described embodiment, the throttle device 2 including the row 4R of the throttle bodies composed of the four throttle bodies 4a to 4d has been illustrated, but the number of throttle bodies included in the throttle device 2 is not limited to four and is three. It may be 5 or more.

Further, in the above-described embodiment, the throttle device 2 mounted on the two-wheeled vehicle is illustrated, but the throttle device 2 may be mounted not only on the two-wheeled vehicle but also on, for example, a four-wheeled vehicle.

Further, in the above-described embodiment, the drive gear 22 is exemplified as the first power transmission unit for transmitting the power of the first motor 8 to the throttle shaft 20a of the first throttle valve 6a, but the drive gear 22 is replaced with the link. A mechanism or the like may be used as the first power transmission unit.

Further, in the above-described embodiment, the link mechanism 26 is exemplified as the second power transmission unit that connects the throttle shaft 20a of the first throttle valve 6a and the one end side 24a of the first shaft 24, but instead of the link mechanism 26, A gear train or the like may be used as the second power transmission unit.

Further, in the above-described embodiment, the link mechanism 28 is exemplified as the third power transmission unit that connects the other end side 24b of the first shaft 24 and the throttle shaft 20b of the second throttle valve 6b, but instead of the link mechanism 28 A gear train or the like may be used as the third power transmission unit.

Further, in the above-described embodiment, the drive gear 50 is exemplified as the fourth power transmission unit for transmitting the power of the second motor 10 to the throttle shaft 20d of the fourth throttle valve 6d, but the drive gear 50 is replaced with the link. A mechanism or the like may be used as the fourth power transmission unit.

Further, in the above-described embodiment, the link mechanism 52 is exemplified as the fifth power transmission unit that connects the throttle shaft 20c of the third throttle valve 6c and the throttle shaft 20d of the fourth throttle valve 6d, but instead of the link mechanism 52. A gear train or the like may be used as the fifth power transmission unit.

Further, in the above-described embodiment, the first throttle opening sensor 16 detects the rotation angle of the sensor shaft 48 of the link mechanism 28 to open the opening of the first throttle valve 6a and the opening of the second throttle valve 6b. Was configured to detect. In another embodiment, the first throttle opening sensor 16 detects the rotation angle of an arbitrary portion of the first power transmission mechanism 12 to open the opening of the first throttle valve 6a and the opening of the second throttle valve 6b. May be detected.

Further, in the above-described embodiment, the second throttle opening sensor 18 detects the rotation angle of the sensor shaft 64 of the link mechanism 52 to open the third throttle valve 6c and the fourth throttle valve 6d. Was configured to detect. In another embodiment, the second throttle opening sensor 18 detects the rotation angle of an arbitrary portion of the second power transmission mechanism 14 to open the opening of the third throttle valve 6c and the opening of the fourth throttle valve 6d. May be detected.

2 Throttle device 4a 1st throttle body 4b 2nd throttle body 4c 3rd throttle body 4d 4th throttle body 4R Throttle body row 6a 1st throttle valve 6b 2nd throttle valve 6c 3rd throttle valve 6d 4th throttle valve 8th 1 motor 10 2nd motor 12 1st power transmission mechanism 14 2nd power transmission mechanism 16 1st throttle opening sensor 18 2nd

throttle opening sensor

20a, 20b, 20c, 20d Throttle shaft 22 Drive gear (1st power transmission unit) )
24 shafts (first shaft)
24a One end side 24b The other end side 26 Link mechanism (second power transmission unit)
28 Link mechanism (3rd power transmission unit)
50 Drive gear (4th power transmission unit)
52 Link mechanism (5th power transmission unit)

Claims

A row of tubular throttle bodies lined up along the first direction, the first throttle body arranged on one end side of the first direction and the second throttle body arranged on the other end side of the first direction. A row of throttle bodies including a body and at least one throttle body disposed between the first throttle body and the second throttle body.
A first throttle valve arranged inside the first throttle body, a second throttle valve arranged inside the second throttle body, and at least one arranged inside at least one throttle body. Throttle valve, and multiple throttle valves, including
With the first motor
With the second motor
A first power transmission mechanism for transmitting the power of the first motor to the throttle shaft of the first throttle valve and the throttle shaft of the second throttle valve.
A second power transmission mechanism for transmitting the power of the second motor to the throttle shaft of the at least one throttle valve, and
A first throttle opening sensor for detecting the opening degree of the first throttle valve and the opening degree of the second throttle valve, and
A second throttle opening sensor for detecting the opening of at least one throttle valve, and
With
A throttle device in which at least one of the first throttle opening sensor and the second throttle opening sensor is arranged at a position deviated from the row of the throttle bodies in a direction intersecting the first direction.
The throttle device according to claim 1, wherein each of the first throttle opening sensor and the second throttle opening sensor is arranged at a position deviated from the row of the throttle bodies in a direction intersecting the first direction. ..
When the plane including the axis of the first throttle body is used as the reference plane.
The throttle according to claim 2, wherein each of the first throttle opening sensor, the second throttle opening sensor, the first motor, and the second motor are arranged on the same direction side with respect to the reference plane. apparatus.
The third aspect of the present invention, wherein each of the first throttle opening sensor, the second throttle opening sensor, the first motor, and the second motor are arranged on a first straight line along the first direction. Throttle device.
The first power transmission mechanism includes a first power transmission unit for transmitting the power of the first motor to the throttle shaft of the first throttle valve.
The throttle device according to any one of claims 1 to 4, wherein the first power transmission unit is arranged between the first throttle body and at least one throttle body.
The first power transmission mechanism is
A first shaft extending along the first direction and
A second power transmission unit arranged on the opposite side of the first throttle valve from the first power transmission unit and connecting the throttle shaft of the first throttle valve and one end side of the first shaft.
A third power transmission unit that connects the other end side of the first shaft and the throttle shaft of the second throttle valve, and
5. The throttle device according to claim 5.
The throttle device according to claim 6, wherein the length of the first shaft is longer than the distance between the axis of the first throttle body and the axis of the second throttle body.
The first throttle opening sensor is configured to detect the opening degree of the first throttle valve and the opening degree of the second throttle valve via the third power transmission unit, claim 6 or 7. Throttle device described in.
The second power transmission mechanism includes a fourth power transmission unit for transmitting the power of the second motor to the throttle shaft of the at least one throttle valve.
The fourth power transmission unit is arranged between the second throttle body and at least one throttle body.
The throttle device according to any one of claims 6 to 8, wherein the fourth power transmission unit is arranged on the side opposite to the third power transmission unit with the second throttle body interposed therebetween.
The at least one throttle body includes a third throttle body adjacent to the first throttle body and a fourth throttle body arranged between the third throttle body and the second throttle body.
The second power transmission mechanism connects a fifth power transmission unit that connects a throttle valve provided inside the third throttle body and a throttle valve provided inside the fourth throttle body to the third throttle. The throttle device according to claim 9, which is included between the body and the fourth throttle body.
The second throttle opening sensor sets the opening degree of the throttle valve provided inside the third throttle body and the opening degree of the throttle valve provided inside the fourth throttle body to the fifth power transmission unit. The throttle device according to claim 10, which is configured to detect via.