KR890005776Y1 - Turbocharger oilsupplier of diesel engine - Google Patents

Abstract

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Description

Oil supply device of diesel engine supercharger

1 is a cross-sectional view of the operating state of the present invention, an example of the operating state of the engine.

Figure 2 is a cross-sectional view of the operating state of the present invention, an example of the stationary state of the engine.

* Explanation of symbols for main parts of the drawings

1: Cylinder 11, 12: Suction hole and discharge hole

13: protrusion 2: rocker lever

21, 22: stopper 23: pin

3: cap nut 4: cover

5: piston 6: spring body

7: oil supply device 101, 201: pipe

102: check valve

The present invention relates to an oil supply device of a turbocharger for a diesel engine that allows air to be fed to the engine at a pressure higher than atmospheric pressure in a diesel engine.

In general, a diesel engine sucks and compresses only air in a cylinder, and when the temperature of the air becomes high, the fuel is injected at high pressure into mist-shaped particles, and the injected fuel is self-settled by the heat of compressed air. In order to obtain power, a turbocharger, which supplies compressed air into the engine, is used, and a turbocharger is used. The exhaust gas generated from the engine is supplied from the exhaust manifold to the suction turbine to supply compressed air. Since the turbocharger receives very high heat because it rotates at high speed (over 50.000rpm), oil is supplied from the oil pump to cool down the bearing parts.

By the way, the oil pump is supplied through the oil supply 200 during the start of the oil pump, that is, the engine is cooled, but after the engine is stopped, the oil pump is also stopped. The problem that the oil remaining inside the bearing is pressed in the inside occurs, and the oil is pulled out of the turbocharger 100, so that dry friction occurs at the beginning of the startup, which causes the life of the device to be shortened. This has occurred.

In order to solve the above problems, the present invention was devised for the purpose of protecting the turbocharger by installing an oil supply device for continuously supplying oil even after the engine is stopped, which will be described in detail with reference to the accompanying drawings. Is as follows.

The protrusion 13 of the cylinder 1 having an upper surface having an oil suction hole 11 and a discharge hole 12 on both sides of a predetermined position of the inner bottom, and having a lever accumulation protrusion 13 at a central predetermined position thereof The rocker lever (2) having stoppers (21) and (22) at both sides of the corresponding positions of the suction and discharge holes was hinged by the pin (23), and the upper cylinder opening was fastened and fixed as a cap nut (3) in the center. The oil intake of the oil supply device 7 is made by tightening the cover 4 and inserting the piston 5 therein so that the spring body 6 is coalesced between the upper surface and the bottom of the cap nut 3. Pipe (101) connecting the ball (11) and the supply (200) with a pipe (201) and installing a check valve (102) for preventing backflow of oil between the discharge hole (12) and the turbocharger (100). In the drawing, reference numeral 24 denotes a torsion spring, and 31 denotes a negative pressure of the piston. Pore, 32 are closed for sealing, 41 is a coupling member, 42 is a gasket, 81, and 82 is an adapter for a closed pipe.

When described in detail by the accompanying drawings the effect of the present invention configured as described above are as follows.

While the engine is running, the oil pumped by the oil pump (not shown) is supplied to the overheated bearing portion of the turbocharger 100 through the oil supply 200 to cool and lubricate, and at this time, the oil Hydraulic oil of the pump pushes the stopper 21 of the rocker lever 2 along the pipe 201 to supply oil to the inside of the cylinder 1, and the piston 5 upwards to the spring body 6. It is compressed and pushed.

At this time, the stopper portion 22 of the rocker lever 2 is blocking the discharge hole 12 and the oil is smoothly supplied to the turbocharger 100 by the check valve 102 for preventing the back flow to the pipe 101. The piston 5 compresses the oil inside the cylinder 1 by the expansion force of the spring body 6, which is then compressed at the same time as the hydraulic pressure from the oil pump is released and the engine is stopped. At this time, the rocker lever 2 acts on the pins 23 by the torsion spring 24 to act as a seesaw, and the stopper 21 blocks the suction hole 11 and the stopper 22 on the other side. Is opened from the discharge hole 12 so that the oil inside the cylinder 1 is supplied to the turbocharger 100 via the pipe 101 (see FIG. 2).

The present invention is constructed and functioned as described above, by supplying lubricating oil for a certain time even after the engine is stopped, so that the cooling action is maintained to prevent wear of the bearing part of the turbocharger and oil squeeze, etc. It is a very useful design that can be extended.

Claims (1)

On both sides of the protrusions 13 of the cylinder 1, the upper surface is opened, and the oil suction hole 11 and the discharge hole 12 are provided at both sides of a predetermined position of the inner bottom, and the projection 13 is formed in the center of the lever. The locker lever 2 having the stoppers 21 and 22 on the hinge was hinged by the pin 23, and the cover 4 secured by the cap nut 3 was fastened and fixed to the center of the upper cylinder opening. And a piston (5) inserted therein, the oil suction hole (11) and the supply (200) of the oil supply device (7) in which the spring body (6) is coalesced between the upper surface and the bottom of the cap nut (3). To the pipe 201, and the oil supply of the diesel engine supercharger, characterized in that the pipe 101 is installed between the discharge hole 12 and the turbocharger 100, the check valve 102 is installed is connected. Device.