JPH109492A - Piping device for oil pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping device which is easy in attaching and detaching work of an oil pan in the case where an oil pipe passing through the oil pan exists, and is prevented from the leakage of the oil in the oil pan. SOLUTION: A connecter 13 is fixed to a cylinder block and attached to a stay 35, and the pipe piercing hole 3 of an oil pan 1 is provided with an oil seal attaching adapter 29 and an oil seal 30, and after attaching the oil pan 1 to the cylinder block, a long nut 34 is inserted in the oil seal 30 to connect the pipe to a connecter 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping device inside an oil pan for piping through an oil pan.

[0002]

2. Description of the Related Art When an oil gallery installed outside an engine is connected to an oil pump for adjusting hydraulic pressure,
For example, as shown in FIG.
An adapter 7 is attached to the hole 3 from both sides of the oil pan 1 via a gasket 5 by a cover 9 with a bolt 9, and a connector 13 is fastened to the cover 9 by a nut 15 via a seal 17. Then, the outer tube 2 is attached to the connector 13 with the cap nut 4,
There is known a technology in which a hose 19 is fastened with a cap nut 23 via a nipple 21 in order to have a degree of freedom in mounting the oil pan 1 inside.

[0003]

However, in the above technique, since the connector 13 is fixed to the oil pan 1, one end of an oil pump (not shown) is controlled before the oil pan 1 is attached to the cylinder block. The other end of the hose 19 attached to the valve must be fastened to the connector 13 attached to the oil pan 1 with the cap nut 23. If the length of the hose is long, it is obstructive after the installation, and there is a high possibility of causing a trouble. Therefore, the work cannot be sufficiently long so that the work is easy, and the work of attaching and detaching the oil pan is troublesome and difficult.

Accordingly, an object of the present invention is to provide a piping device of an oil pump that penetrates an oil pan through which an oil pan can be easily attached and detached and oil in the oil pan does not leak.

[0005]

According to the present invention, a gallery hydraulic side tube for connecting a gallery hydraulic pressure outside an oil pan to a connector, a valve side tube for introducing the hydraulic pressure to a hydraulic control valve, and a gallery hydraulic pressure side A connector for connecting the tube to the valve side tube is provided, and the valve side tube and the connector are directly connected, and the connector is fixed to the cylinder block side.

Further, according to the present invention, the oil pan is provided with an oil seal mounting adapter and an oil seal, and is mounted on the cylinder block in that state.

Further, according to the present invention, the gallery hydraulic side tube and the connector are connected by the long nut inserted into the oil seal.

The present invention is configured as described above, and the connector is provided on the cylinder block side, and the piping work inside the oil pan from the oil pump to the connector and the oil pan attaching / detaching operation are separated. Workability is improved and assembly quality is improved. Further, since two-person work can be performed by one person, the work time is shortened and the cost is reduced.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

In the drawings, members having the same functions as those of the prior art are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 1 is a perspective view showing a piping device of an oil pump according to the present invention. An oil pump 38 is mounted on a cylinder block B, and a hydraulic control valve 40 provided on the oil pump 38 has a valve side. Tube 3
2 are installed.

Further, the mounting member 3 is attached to the cylinder block B.
The stay 35 is fixed via 5a, and the gallery side hydraulic tube 2 is connected to the connector 13 fixed to the stay 35. Here, reference numeral 41 denotes an oil supply pipe to a gallery (not shown) of the cylinder block B;
Denotes oil suction pipes.

FIG. 2 shows the details of the connection between the valve side tube 32 and the gallery hydraulic side tube 2. The hole 3 provided in the oil pan 1 has an adapter 7 having a hole of the same diameter and an oil seal attachment. The adapter 29 is connected to the gasket 5, 5
Attached through. The oil seal 30 is attached to the oil seal attachment adapter, and the oil pan 1 sub-assembled in this state is attached to the cylinder block B as shown in FIG.

A connector 13 is fastened by a nut 15 to a stay 35 fixed to the cylinder block B inside the oil pan 1, and a valve side tube 32 is connected to the connector 35 by a cap nut 23. Further, the center of the connector is configured to coincide with the center of the hole 3 provided in the oil pan 1.

Then, the long nut 34 inserted into the gallery hydraulic side tube 2 is inserted into the oil seal 30 to connect the tube 2 to the connector 13.
3, the tube 2 and the connector 13 are easily connected. Further, since the outer periphery of the long nut 34 is sealed by the oil seal 30, the oil in the oil pan does not leak.

Therefore, when the oil pan 1 is mounted on the cylinder block, there is no hose that makes the operation difficult, and the hose can be easily mounted, and then the gallery hydraulic side tube can be mounted. Oil leakage is prevented.

[0017]

The present invention is configured as described above,
The following excellent effects can be obtained. (1) By separating the piping work inside the oil pan and the oil pan attaching / detaching work, workability is improved and assembly quality is improved. (2) Since two-person work can be performed by one person, work time is shortened and cost is reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a piping device of an oil pump showing an embodiment of the present invention.

FIG. 2 is a sectional view showing a main part of FIG. 1;

FIG. 3 is a cross-sectional view showing an example of the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Oil pan 2 ... Gallery hydraulic side tube 5 ... Gasket 7 ... Adapter 9 ... Cover 19 ... Hose 29 ... Oil sill seal mounting adapter 30 ... Oil seal 34 ... Long nuts

Claims (3)

[Claims] 1. A gallery hydraulic side tube for connecting a gallery hydraulic pressure outside of an oil pan to a connector, a valve side tube for introducing the hydraulic pressure to a hydraulic control valve, and a gallery hydraulic side tube and a valve side tube for connection. Wherein the valve side tube and the connector are directly connected, and the connector is fixed to the cylinder block side. 2. An oil seal mounting adapter and an oil seal are mounted on the oil pan, and the oil pan is mounted on a cylinder block in that state.
The piping device for an oil pump according to item 1. 3. The oil pump piping device according to claim 2, wherein the gallery hydraulic side tube and the connector are connected by a long nut inserted into the oil seal.