JPS5930182Y2 - Lubricating oil strainer installation device for diesel engine supercharger - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for installing a lubricating oil strainer for a supercharger of a diesel engine.

In general, a lubricating oil strainer for a turbocharger is installed so that the intake port 11 is opened toward the side where the surface 20 and the flange 21 are formed (the left side in FIG. 4), as shown in FIG. There is.

Conventionally, when installing and piping such a strainer 5, the installation extending upward to the side wall of the gear case 22, etc. is done using a stand 2.
3, and tighten the flange 21 of the strainer 5 to the upper end of the stand 23 with bolts 24, and connect the oil pipe 26 on the lubricating oil pump 25 side to the side opposite to the strainer 5 (left side in Fig. 4).
For installation, it is fixed to the upper end of the stand 23, and for installation, it is fixed to the upper end of the stand 230.
The oil pipe 26 and the intake port 11 of the strainer 5 were communicated through the oil hole 27.

However, when the strainer 5 is attached to the gear case 22 via the stand 23 as described above, not only does it take up too much space, but the vibrations of the gear case 22 are amplified and transmitted to the strainer 5. The strainer 5 may be easily damaged.Since the oil pipe 26 on the pump 25 side is attached from the opposite side to the strainer 5, piping work is time-consuming.

The present invention has a lubricating oil strainer 5 in which the intake port 11 is formed on the mounting surface 20 and the flange 21 side as described above.
When installing the lubricating oil strainer 5, the piping and installation can be done easily, without taking up too much space, and the strainer 5 can be installed in a stable state. It is intended to.

The present invention will be explained based on the drawings. In FIG. 1, which is a partial side view of an engine, 1 is an exhaust manifold, 2 is a supercharger provided on the exhaust manifold 1, and 3 is an oil cooler.

On the side wall of the exhaust manifold 1, a mounting device of the present invention is provided, which is made of a plate 4 or the like, and a lubricating oil strainer 5 is attached to this mounting device.

In addition, the oil pipe 6 on the oil cooler 3 side and the oil pipe 7 on the turbocharger 2 side are attached to the plate 4 and the take-out part 8 so that lubricating oil is sent from the oil cooler 3 to the supercharger 2 via the strainer 5. It is connected.

This strainer 5 has the same structure as shown in FIG.
The intake port 11 is opened on the same side as the mounting 7 flange 21 (on the opposite side in FIG. 1), and the take-out portion 8 is formed at the upper end.

In Fig. 2, which is a partial enlarged view of the ■-■ cross section of Fig. 1,
An outward-opening recess 9 is formed on the outside of the side wall of the exhaust manifold 1 (lower side in FIG. 2), and a peripheral wall 10 surrounding the recess 9 is provided with several screw threads 10a.

The plate 4 is installed to cover this recess 9 from the outside (lower side in Figure 2).
, there is a second oil hole 1 connected to the intake port 11 of the strainer 5.
2 and a first oil hole 13 connected to the oil pipe 6 on the side of the oil cooler 23 are opened, and a female thread is formed on the inner peripheral surface of the first oil hole 13.

Further, for attachment, several bolt insertion holes 14 are bored in the outer peripheral portion of the plate 4.

The plate 4 and the strainer 5 are attached by screwing the short bolts 15 dedicated to the plate 4 and the long bolts 16 that can tighten the 7 langes 21 of the strainer 5 into the female threads 10a. The plate 4 is fixed to the exhaust manifold 1, and the strainer 5 has its intake port 11 connected to the second oil hole 1'.
2, the mounting is fixed to the exhaust manifold 1 via a plate 4.

Installation is done by covering the recess 9 from the outside with the plate 4.
The recess 9 is configured as an oil passage.

The oil pipe 6 on the oil cooler 3 side is connected to the strainer 5 in the first oil hole 13.
It is screwed on from the same side as (lower side in Figure 2).

Furthermore, in the diesel engine to which the present invention is applied, the lubricating oil for the engine is also used to lubricate the supercharger 2, so the lubricating oil sent to the supercharger 2 is sent to the strainer 5. By now, the pressure of the lubricating oil sent to the engine side has already been regulated, so even if the strainer is equipped with a pressure regulating valve, there is no need to connect a relief oil pipe or the like.

In addition, when the above-mentioned pressure regulating valve is provided, as shown in Fig. 3, which corresponds to the view in the direction of the Since the oil passage 28 is closed by the mounting plate 4 when the mounting surface 20' of the strainer 5' is joined to the mounting plate 4, the function of the pressure regulating valve can be easily closed.

Briefly explaining the flow of lubricating oil, the lubricating oil sent from the pump passes through the oil cooler 23 and the oil pipe 6 to the recess 9.
The oil flows into the strainer main body 5a through the second oil hole 12 and the intake port 11, and is sent to the supercharger 2 from the extraction part 8 via the oil pipe 7 after being cleaned.

As explained above, according to the present invention: (1) Installation of the strainer 5 and piping work do not require much effort.

In other words, the mounting is done on the mount 21 (mounting is on the surface 20) and the intake port 1.
1 are formed on the same side, the strainer 5 and the oil pipe 6 on the oil cooler 23 side should be attached to the exhaust manifold 1 and the plate 4 from the same side (lower side in Figure 2). Therefore, the installation of the strainer 5 and the piping work of the oil pipe 6 are easy.

(2,) Since the strainer 5 is attached to the exhaust manifold 1, vibrations from the engine are not transmitted as much compared to when it is attached to the gear case 22 (Fig. 4), and the strainer 5 is attached to the exhaust manifold 1.
There is less need for damage.

(3) Since the strainer 5 can be attached along the side wall of the exhaust manifold 1, there is no need to arrange it so that it protrudes vertically from the gear case 22 etc. as in the conventional case (Fig. 4), thereby saving space. It can be installed in a stable state without removing too much.

[Brief explanation of the drawing]

Figure 1 is a partial side view of a diesel engine equipped with a lubricating oil strainer according to the present invention, and Figure 2 is a partial side view of a diesel engine equipped with a lubricant strainer according to the present invention.
-■ A partial enlarged cross-sectional view, FIG. 3 is an example of a view taken in the direction of the ■ arrow in FIG. 2, and FIG. 4 is a partial front view of a conventional diesel engine. 1...Exhaust manifold, 2...Supercharger, 3...Oil cooler, 4...Mounting plate, 5...Lubrication Oil strainer, 6,7...
Oil pipe, 9... recess, 12... second oil hole, 13... first oil hole.

Claims (1)

[Scope of utility model registration request] The lubricating oil inlet of the lubricating oil strainer is formed on the same side as the flange when installing the strainer.The lubricating oil strainer for diesel engine turbochargers is installed on the side wall of the exhaust manifold and opens outward. A mounting plate with a first oil hole connected to the oil pipe on the oil cooler side and a second oil hole connected to the intake of the strainer is attached to the side wall of the exhaust manifold so as to cover the recess. from the outside, configure the recess as an oil passage, align the strainer intake with the second oil hole in the plate, fix the strainer to the plate, and connect the oil pipe on the oil cooler side to the strainer. A device for installing a lubricating oil strainer for a diesel engine supercharger, which is characterized in that it is connected to the first oil hole from the same side as the lubricating oil strainer.