CN2615344Y

CN2615344Y - One-way lubrication turbocharger

Info

Publication number: CN2615344Y
Application number: CN 03212678
Authority: CN
Inventors: 邱信国
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-14
Filing date: 2003-04-14
Publication date: 2004-05-12
Anticipated expiration: 2013-04-14

Abstract

The utility model relates to an one-way lubrication turbocharger. In the prior similar products, after an engine is stopped, engine oil in a supercharger flows back in a large amount under the action of high temperature and high pressure, so that the lubrication of a floating bearing and the like is lost in the rotation after the engine is stopped, and particularly, when the engine is restarted, the abrasion fault can be caused. The utility model discloses also by organism 1, pivot 2, floating bearing 4, turbine 6, parts such as impeller 7 constitute, the institute is different: the check valve 3 is additionally arranged in front of an engine oil inlet of the supercharger, so that the engine oil backflow fault is prevented.

Description

Unidirectional lubricated turbosupercharger

Technical field: the utility model is a kind of mechanical device, promptly a kind of unidirectional lubricated turbosupercharger.

Background technique: turbosupercharger is the auxiliary device of motor, and its main structure is string one rotating shaft in the body, and rotating shaft one end is equipped with turbine, and the other end is equipped with impeller.The back blast turbine that motor is discharged drives rotating shaft and impeller high speed rotating, and impeller is squeezed into motor with air pressurized, and the air feed cylinder uses.Because this pressurized machine can improve the efficient of motor significantly, be widely used in the diesel engine of big-and-middle-sized truck, new type tank at present., the lubrication system of existing pressurized machine breaks down easily, and particularly when starting, the floating bearing in the rotating shaft is easy to damage.Studies show that, cause the reason of this phenomenon to be: motor is when quitting work, provide the work of machine oil also to stop to pressurized machine thereupon, each rotatable parts lubricant oil on every side that is under the high-temperature high-pressure state also refluxes thereupon, make the no oil conditions of position appearance such as floating bearing, when machining for the second time, before not forming lubricant film, just carry out high speed rotating, thereby above-mentioned fault will occur.

Summary of the invention: the unidirectional lubricated turbosupercharger that lubricating oil can not reflux when the purpose of this utility model was a kind of shutdown of development.This pressurized machine also is to be made of parts such as body, rotating shaft, turbine, impeller, floating bearings, also organic oil filler opening and oil leab.Different is: in filler opening the place ahead, a check valve that only allows machine oil to enter and mustn't machine oil reflux is housed.

Said check valve is installed on the oil inlet pipe of oil filter of turbosupercharger.

Said check valve is a pipeline of establishing through hole in one, and there is a ball sealer that matches with bore periphery the back of through hole, ball sealer by a hair ejection on through hole.

Said check valve is a pipeline of establishing through hole in one, and the back of through hole connects the sealing plate that can swing, and the sealing plate face is the sealing surface that matches with bore periphery.

The turbosupercharger that adopts such scheme to make, its check valve can prevent that machine oil from refluxing, thereby guarantee to remain sufficient machine oil in the lubrication system, can prevent like this owing to the lubricated various faults that cause of the interruption of short time.

Accompanying drawing is introduced: Fig. 1 is a kind of main pseudosection of mode of execution, and Fig. 2 is the schematic representation of second kind of mode of execution, and Fig. 3 is the structural representation of first kind of check valve, and Fig. 4 is the structural representation of second kind of check valve.

Among the figure as seen: body 1, rotating shaft 2, check valve 3, floating bearing 4, seal ring 5, turbine 6, impeller 7, filter cleaner 8, oil inlet pipe 9, rail 10, micro-force spring 11, ball sealer 12, through hole 13, sealing plate 14.

Mode of execution:

First kind: as seen from Figure 1, this turbosupercharger also is by body 1, rotating shaft 2, floating bearing 4, turbine 6, and impeller 7 formations such as grade, the main improvement is to have installed a check valve 3 additional in machine oil import front.Like this, machine oil can only enter, and can not reflux, and can make the part that respectively is rotatably assorted keep certain machine oil on every side when shutting down, and when start or shutdown back inertia rotate once more, just can wear-out failure not occur.

Second kind: shown in Figure 2, be on the oil inlet pipe 9 of the oil filter 8 of pressure-increasing machine machine oil import front, to install check valve 3 additional, its action principle is identical with first kind of mode of execution.

The kind of check valve is a lot, and Fig. 3 and Fig. 4 have introduced two kinds of check valves the simplest respectively.Check valve shown in Figure 3 is to establish a small through hole 13 in an oil inlet pipe; in through hole 13 back one ball sealer 11 is arranged; ball sealer 11 under micro-force spring 11 ejections attached to through hole 13 on; when start; machine oil is washed ball sealer open and the lubrication system that enters pressurized machine, and when shutting down back machine oil when refluxing, ball sealer is under the effect of micro-force spring and oil stream; block through hole 13, prevent and reflux.

Check valve shown in Figure 4 also is that a small through hole 13 is arranged in oil pipe, and a sealing plate 14 is arranged in the through hole back, sealing plate a side and oil pipe adopt and be hinged or flexibly connect, can swing back and forth, sealing plate is opened when oil-feed, and during oil return, sealing plate 14 is attached on the through hole 13 and prevents oil return.

Claims

1, a kind of unidirectional lubricated turbosupercharger, also be to constitute by body (1), rotating shaft (2), floating bearing (4), turbine (6), impeller parts such as (7), also organic oil filler opening and oil leab is characterized in that: a check valve (3) that only allows machine oil to enter and mustn't machine oil reflux is housed in filler opening the place ahead.

2, unidirectional lubricated turbosupercharger according to claim 1 is characterized in that: said check valve (3) is installed on the oil inlet pipe (9) of the oil filter of turbosupercharger.

3, unidirectional lubricated turbosupercharger according to claim 1, it is characterized in that: said check valve (3), it is the pipeline of establishing through hole (13) in one, there is a ball sealer that matches with bore periphery (12) back of through hole (13), ball sealer (12) by a micro-force spring (11) ejection on through hole (13).

4, unidirectional lubricated turbosupercharger according to claim 1, it is characterized in that: said check valve (3), it is the pipeline of establishing through hole (13) in one, the back of through hole (13) connects the sealing plate that can swing (14), the plate face of sealing plate (14) and the sealing surface of through hole (13) periphery for matching.