CN201297201Y

CN201297201Y - Oil-leak resisting turbocharger

Info

Publication number: CN201297201Y
Application number: CNU2008201558462U
Authority: CN
Inventors: 杨爱国
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-25
Filing date: 2008-11-25
Publication date: 2009-08-26
Anticipated expiration: 2018-11-25

Abstract

The utility model relates to an oil-leak resisting turbocharger, which comprises an air-compression wheel, an air-compression end where an air-compression housing is positioned, a midbody, a turbine housing, an air-outgoing end where a turbine is positioned and a rotating shaft, wherein, an anti-thrust, an oil baffling plate and a diffusion board are arranged at one end of the rotating shaft close to the air-compression wheel; a shaft gland is arranged between the rotating shaft and the diffusion board; and the midbody is provided with a lubricant channel. The oil-leak resisting turbocharger is characterized in that a gas-guiding device used for guiding external gas of the turbocharger into the part between the oil baffling plate and the diffusion board is also included.

Description

The turbosupercharger of anti-leakage of oil

Technical field

The utility model relates to a kind of turbosupercharger.

Background technique

Turbosupercharger is widely used in automobile, generator set, boats and ships and engineering machinery, it is that the exhaust energy that utilizes motor to discharge drives turbine, the wheel of calming the anger that promptly drives turbine compresses the motivation of setting out with more air, thereby more combustion gas is fully burnt, improve engine power widely, and reduce the discharging of harmful substance.

When using motor in the plateau section, because rarefaction of air, the engine power of natural aspiration will descend, and motor is pressed as adopting turbine to increase, and then can remedy decline power.Supercharger speed is very high, and generally at 120,000-170,000 rev/mins, pressurized machine is by oil lubricating.

As shown in Figure 1, existing turbosupercharger comprises the wheel 10 of calming the anger, the shell 11 of calming the anger, intermediate 13, volute 14, turbine 15, rotating shaft 12 and floating bearing 16, thrust plate 19, oil baffle 17, seal ring 20, axle envelope 21 and diffusion plate 18.The waste gas of motor is gone out from volute 14, drives turbine 15 and rotates, and the outer end of turbine 15 is the air outlet 25 of turbosupercharger, and turbine 15 drives the wheel 10 of calming the anger that is in air inlet 22 by rotating shaft 12 again, and the wheel 10 of calming the anger is pressed into the shell 11 of calming the anger with air.Rotating shaft 12 is arranged on the intermediate 13 rotationally, and the lubricant oil that offers rotating shaft 12 enters from filler opening 24, and lubricant oil is through being back to fuel tank behind the floating bearing everywhere from return opening 23.For preventing that lubricant oil from entering the end of calming the anger, be provided with oil baffle 17 and axle envelope 21, axle envelope 21 comprises seal ring 20.Thrust plate 19 mainly plays the axially locating effect.

There is such shortcoming in aforementioned turbosupercharger: for example in (on the plateau) using process, the constantly lubricated and cooled interior parts of machine oil in the intermediate, if pressurized machine air inflow in the course of the work is not enough, air pipe gas leakage or motor belt speed overlong time, the end of calming the anger will produce negative pressure, and when the wheel back side of calming the anger produced certain negative pressure, the lubricant oil (machine oil) in the intermediate was easy to be drawn out of and, will produce oil leakage phenomenon, leakage of oil is in the diffusion plate, a seal ring of sealing up spills.

The model utility content

The purpose of this utility model is to provide a kind of improved turbosupercharger, produces negative pressure and causes oil leakage phenomenon with the end of calming the anger that prevents pressurized machine.

In order to realize described purpose, the turbosupercharger of anti-leakage of oil of the present utility model, comprise the outlet side and the rotating shaft at the end of calming the anger, intermediate, volute and the turbine place at the calm the anger wheel and the shell place of calming the anger, rotating shaft is provided with thrust plate, oil baffle and diffusion plate near an end of the wheel of calming the anger, the axle envelope is set between rotating shaft and the diffusion plate, intermediate provides grease channel, is characterized in, comprises that also the ambient atmos that is used for turbosupercharger imports to the air-guide device between oil baffle and the diffusion plate.

The turbosupercharger of described anti-leakage of oil, its further characteristics are, described air-guide device be provide on the intermediate from the outside of intermediate to the vent the diffusion plate, so that the waste gas that air or motor are discharged enters between oil baffle and the diffusion plate by this vent, and then described waste gas or air enter into the end of calming the anger from the axle envelope when producing negative pressure at the end place of calming the anger.

The turbosupercharger of described anti-leakage of oil, its further characteristics are, described air-guide device be provide on the diffusion plate from the outside of diffusion plate to the vent the diffusion plate, so that the waste gas that air or motor are discharged enters between oil baffle and the diffusion plate by this vent, and then described waste gas or air enter into the end of calming the anger from the axle envelope when producing negative pressure at the end place of calming the anger.

The turbosupercharger of described anti-leakage of oil, its further characteristics are that described vent is to be provided by the pipe that is plugged on the diffusion plate.

The beneficial effects of the utility model are: import to the air-guide device between oil baffle and the diffusion plate because turbosupercharger comprises the ambient atmos that is used for turbosupercharger, when the end of calming the anger of turbosupercharger produces negative pressure, ambient atmos is the waste gas of motor discharge for example, perhaps ambient air (be generally filtration after air) will enter into this end of calming the anger from described air-guide device, so just prevented that the lubricant oil (machine oil) in the intermediate from entering into the end of calming the anger, and then avoided oil leakage phenomenon.

Description of drawings

Fig. 1 is the structural drawing of existing a kind of turbosupercharger.

Fig. 2 is an an embodiment's of the present utility model structural drawing.

Fig. 3 is another an embodiment's of the present utility model structural drawing.

Embodiment

As shown in Figure 2, an embodiment of the present utility model comprises the wheel 30 of calming the anger, the shell 31 of calming the anger, intermediate 33, volute 34, turbine 35, rotating shaft 32 and floating bearing 36, thrust plate 39, oil baffle 37, seal ring 40, axle envelope 41 and diffusion plate 38 (perhaps also claiming the sealing gland plate).The waste gas of motor is gone out from volute 34, drives turbine 35 and rotates, and the outer end of turbine 35 is the air outlet 45 of turbosupercharger, and turbine 35 drives the wheel 30 of calming the anger that is in air inlet 42 by rotating shaft 32 again, and the wheel 30 of calming the anger is pressed into the shell 31 of calming the anger with air.Rotating shaft 32 is arranged on the intermediate 33 rotationally, and the lubricant oil that offers rotating shaft 32 enters from filler opening 44, and lubricant oil is through being back to oil sump behind the floating bearing everywhere from return opening 43.For preventing that lubricant oil from entering the end of calming the anger, be provided with oil baffle 37 and axle envelope 41, axle envelope 41 comprises seal ring 40.Diffusion plate 38 mainly plays the wind-guiding effect.Thrust plate 39 mainly plays the axially locating effect.

Be with existing turbosupercharger difference, be provided with vent 100 from the outside of intermediate 33 to the diffusion plate 38, the waste gas or the process filtered air that so just can utilize motor to discharge enter between oil baffle 37 and the diffusion plate (dish of calming the anger in other words) 38 by vent 100, pressurized machine is calmed the anger in the end, when the end of calming the anger of pressurized machine produces certain negative pressure, can constantly release from the seal ring 40 of axle envelope 41 waste gas or through filtered air, and can lubricant oil directly not extracted out, so just avoided oil leakage phenomenon, and then avoided the pollution of leakage of oil environment.

Fig. 3 shows another embodiment of the present utility model, it is that with embodiment's difference shown in Figure 2 vent is arranged on that (the diffusion plate among Fig. 3 separates with intermediate on the diffusion plate, pass through Bolt Connection, diffusion plate and intermediate among Fig. 2 are one, diffusion plate among Fig. 2, as shown in Figure 3, vent 101 is arranged on the diffusion plate 38.Pass a pipe 102 in the diffusion plate 38, provide vent 101 by this pipe 102.It is identical in fact that vent 101 among Fig. 3 and vent 100 shown in Figure 2 play work: when the end of calming the anger of pressurized machine produces certain negative pressure, can constantly release from the seal ring 40 of axle envelope 41 waste gas or through filtered air, and can lubricant oil directly not extracted out, so just avoided oil leakage phenomenon, and then avoided the pollution of leakage of oil environment.

The embodiment of front can also make multiple modification, as long as it can enter between diffusion plate 38 and the oil baffle 37 ambient atmos, aforesaid vent 100,101 not necessarily is simple hole, it is also conceivable that other factors and vent 100,101 is replaced to air-guide device.

Claims

1. the turbosupercharger of an anti-leakage of oil, comprise the outlet side and the rotating shaft at the end of calming the anger, intermediate, volute and the turbine place at the calm the anger wheel and the shell place of calming the anger, rotating shaft is provided with thrust plate, oil baffle and diffusion plate near an end of the wheel of calming the anger, the axle envelope is set between rotating shaft and the diffusion plate, intermediate provides grease channel, it is characterized in that, comprise that also the ambient atmos that is used for turbosupercharger imports to the air-guide device between oil baffle and the diffusion plate.

2. the turbosupercharger of anti-leakage of oil as claimed in claim 1, it is characterized in that, described air-guide device be provide on the intermediate from the outside of intermediate to the vent the diffusion plate, so that the waste gas that air or motor are discharged enters between oil baffle and the diffusion plate by this vent, and then described waste gas or air enter into the end of calming the anger from the axle envelope when producing negative pressure at the end place of calming the anger.

3. the turbosupercharger of anti-leakage of oil as claimed in claim 1, it is characterized in that, described air-guide device be provide on the diffusion plate from the outside of diffusion plate to the vent the diffusion plate, so that the waste gas that air or motor are discharged enters between oil baffle and the diffusion plate by this vent, and then described waste gas or air enter into the end of calming the anger from the axle envelope when producing negative pressure at the end place of calming the anger.

4. the turbosupercharger of anti-leakage of oil as claimed in claim 3 is characterized in that, described vent is to be provided by the pipe that is plugged on the diffusion plate.