JP2655220B2 - Clutch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clutch device,
In particular, by forming an oil reservoir by partitioning a part of the inside of the clutch housing, the distance between the oil reservoir and the hydraulic pump is reduced to zero to reduce the oil suction resistance at low temperatures, and sufficient hydraulic pressure is related to air temperature. The present invention relates to a clutch device that can be supplied without any need.

[0002]

2. Description of the Related Art Referring to FIG.
A clutch having a hydraulic pump (not shown) for generating hydraulic pressure therein and driving an operating unit 2 for performing a shift select operation of a transmission 1 as an example of an external hydraulic operating device by a hydraulic pressure generated from the hydraulic pump. In the device 3, an oil reservoir 4 as an oil tank is disposed at a considerable distance from the clutch device 3, and two suction hoses 5 for supplying oil to the hydraulic pump from the oil reservoir are provided. The suction hose is connected to the oil reservoir 4 and the suction port 6 of the hydraulic pump.

The reason why two suction hoses 5 are provided in this way is that when the temperature is low, the viscosity of the oil increases, so that the suction resistance increases and a sufficient amount of oil must be supplied unless the oil passage cross-sectional area is increased. This is because the oil cannot be sucked from the oil reservoir 4. An oil pipe 8 for supplying hydraulic pressure to the operation unit 2 is connected to a discharge port 9 of the hydraulic pump and the operation unit 2.

An oril cooler 10 for cooling oil which has become hot due to connection and disconnection of the clutch device 3 is disposed at a position considerably away from the transmission 1, and an inlet port 10a of the oil cooler. Is connected to an oil pipe 12 connected to a discharge port 11 for returning oil used in the clutch device 3, and an inflow port 10b is connected to an oil pipe 13 connected to an oil reservoir 4. Communication is established.
An oil pipe 14 for returning oil from the operation unit 2 is connected to the operation unit 2 and the oil pipe 13 in communication.

In such a conventional example, since the oil reservoir 4 is disposed outside the clutch device 3, it is disadvantageous in that a considerable space is required, and the oil reservoir 4 and the clutch device 3 are not provided. The distance to the hydraulic pump arranged in the inside becomes longer, and the suction hose 5
Since the oil must be sucked through the oil passage, the passage cross-sectional area of the oil suction path is limited by itself, and even when two suction hoses 5 are provided as shown in the figure, the suction resistance increases and the oil tends to be insufficient at low temperatures. And there was a problem that sufficient hydraulic pressure could not be obtained.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned disadvantages of the prior art. It is an object of the present invention to provide a hydraulic pump for generating a hydraulic pressure inside the hydraulic pump. In a clutch device in which an external hydraulic operating device is driven by a hydraulic pressure generated from a pump, a part of the clutch housing on the transmission side is partitioned by a partition wall to form a space in which oil can be stored, and the space is formed by an oil reservoir. By storing oil in the oil reservoir and arranging a hydraulic pump in the oil reservoir, space for arranging the oil reservoir outside the clutch can be saved, and the space between the oil reservoir and the hydraulic pump can be saved. And eliminates the need for a suction hose, thereby reducing oil suction resistance. Comb is to be supplied is always a sufficient amount of oil be the viscosity of the oil is increased at low temperatures, operation unit for the shift select operation is so especially also operate smoothly at low temperatures.

[0007]

SUMMARY OF THE INVENTION In summary, the present invention relates to a clutch device comprising a hydraulic pump for generating hydraulic pressure therein, wherein an external hydraulic operating device is driven by hydraulic pressure generated from the hydraulic pump. A part of the transmission side is partitioned by a partition wall to form a space in which oil can be stored, the space is configured as an oil reservoir, and the oil pump and the hydraulic pump are arranged in the oil reservoir. It is characterized by the following.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. 1 to 3, a clutch device 23 according to the present invention includes a hydraulic pump 20 for generating hydraulic pressure therein.
In a clutch device in which an operating unit 22 for shift select operation of a transmission 21 as an example of an external hydraulic operating device is driven by a hydraulic pressure generated from the hydraulic pump, a part of the clutch housing 25 on the transmission 21 side is partitioned. An oil reservoir 24 is formed by partitioning the oil reservoir 30 with the oil reservoir 24. The space 31 is formed as an oil reservoir 24.
2 and a hydraulic pump 20 is provided.

The partition wall 30 is fixed to the clutch housing 25 in a watertight manner by a plurality of bolts 33 via a liquid gasket (not shown), and oil leaks in the space 31 inside the clutch housing 25. It can be stored completely without any.

The hydraulic pump 20 employs a vane pump, which is disposed in an oil reservoir 24 and has a main body 2.
Reference numeral 0a is fixed to the clutch housing 25, and a vane (not shown) is restricted in a rotational direction with respect to the input shaft 34, and is driven by the input shaft.

An oil pipe 38 connected to the operating unit 22 is connected to a discharge port 29 of the hydraulic pump 20, and an oil pipe connected to a discharge port 41 for returning oil used in the clutch device 23. 42
Are connected to the inflow port 40 a of the oil cooler 40. In addition, the outflow port 40b of the oil cooler includes:
An oil pipe 43 communicatively connected to the inflow port 24a of the oil reservoir 24 is communicatively connected. Further, an oil pipe 44 for returning oil from the operating unit, which is connected to the operating unit 22, is connected to the middle of the oil pipe 42.

The suction pump 26 of the hydraulic pump 20 is opened in the oil reservoir 24, so that the conventional suction hose is not required, and the length of the suction hose is zero. In FIGS. 1 and 2, 3
Reference numeral 5 denotes a clutch disk, 36 denotes an engine crankshaft, and 39 denotes an electromagnetic valve for a hydraulic device of the clutch device 23. Illustration and description of the hydraulic device of the clutch device 23 are omitted.

The present invention is configured as described above,
Hereinafter, the operation will be described. When the engine rotates and the clutch is engaged, the clutch disc 35 rotates, which drives the input shaft 34,
The vanes of the hydraulic pump 20 rotate, and the oil 32 in the oil reservoir 24 provided in the clutch housing 25 is rotated.
Is sucked in from the suction port 26 as indicated by an arrow A, is increased in pressure, and is sent to the operating unit 22 through the oil pipe 8 as indicated by an arrow B.

In this case, there is no suction hose in the hydraulic pump 20, and an oil 32 is provided around the hydraulic pump.
Is filled and the suction port 26 is opened in the oil, so that the suction resistance is very small, so that even at a low temperature, a sufficient amount of the oil 32 can be sucked, and the pressure can be increased and sent out.

In FIG. 1, after the oil sent to the operation unit 22 operates the operation unit 22 by the hydraulic pressure to perform the shift and select operations of the transmission 21, it flows through the oil pipe 44 as shown by the arrow C. The oil enters the oil cooler 40, where it is cooled and flows through the oil pipe 43 as shown by the arrow D and is returned into the oil reservoir 24. In this case, the oil 32 which has become high temperature by operating the hydraulic device of the clutch device 23 is discharged to the discharge port 41.
From the oil cooler 4
It is cooled at 0 and returned into the oil reservoir 24.

As described above, according to the present invention, since the oil reservoir 24 is provided in the clutch device 23,
There is no need to provide a separate oil reservoir for the hydraulic pump 20, which saves space and saves the hydraulic pump 2
Since the suction resistance of 0 is very small, even if the viscous resistance of the oil at a low temperature becomes considerably large, there is no possibility that the amount of oil to be sucked falls below the required amount,
A sufficient amount of oil 32 can always be supplied to the operating unit 22 and the hydraulic device of the clutch device 23.

According to the present invention, there is provided a clutch device in which a hydraulic pump for generating a hydraulic pressure is provided as described above and an external hydraulic operating device is driven by the hydraulic pressure generated from the hydraulic pump. Is formed by a partition wall to form a space in which oil can be stored, the space is configured as an oil reservoir, and in the oil reservoir, oil is stored and a hydraulic pump is arranged. This has the effect of saving space for disposing outside the clutch, and eliminating the need for a suction hose by reducing the distance between the oil reservoir and the hydraulic pump to zero. The resistance is extremely low, and even when the viscosity of the oil increases at low temperatures, a sufficient amount of oil is always Sufficient hydraulic pressure is obtained through supplied,
The effect is obtained that the operation unit for the shift select operation operates smoothly even at a low temperature.

[Brief description of the drawings]

FIG. 1 is a partial longitudinal sectional front view showing a clutch device, an operating unit, and a piping state therebetween.

FIG. 2 is a vertical sectional view taken along the line II-II of FIG.

FIG. 3 is a perspective view showing a clutch device, a transmission, an operation unit, and an oil cooler.

FIG. 4 is a perspective view similar to FIG. 3, according to a conventional example.

[Description of sign]

 Reference Signs List 20 hydraulic pump 21 transmission 22 operating unit as an example of hydraulic operating device 23 hydraulic device 24 oil reservoir 25 clutch housing 30 partition wall 31 space 32 oil

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Fujio Kurayama 3-1-1, Hinodai, Hino-shi, Tokyo Inside Hino Automotive Industry Co., Ltd. (56) References JP-A-50-79652 (JP, A) Hei 3-194217 (JP, A) Japanese Utility Model Showa 63-53934 (JP, U) Japanese Utility Model Hei 1-126425 (JP, U)

Claims (1)

(57) [Claims] A clutch device having a hydraulic pump for generating hydraulic pressure therein and driving an external hydraulic operating device by hydraulic pressure generated from the hydraulic pump, wherein a part of the clutch housing on the transmission side is partitioned by a partition wall. A clutch device, comprising: a space that can be partitioned to store oil; the space is configured as an oil reservoir; oil is stored and the hydraulic pump is disposed in the oil reservoir.