CN205101283U - Turbo charger's compressor end seal structure , turbo charger and car - Google Patents
Turbo charger's compressor end seal structure , turbo charger and car Download PDFInfo
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- CN205101283U CN205101283U CN201520844686.2U CN201520844686U CN205101283U CN 205101283 U CN205101283 U CN 205101283U CN 201520844686 U CN201520844686 U CN 201520844686U CN 205101283 U CN205101283 U CN 205101283U
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Abstract
The utility model provides a turbo charger's compressor end seal structure, turbo charger and car to prevent the oil leak of turbo charger compressor end. This compressor end seal structure includes compressor back of the body dish, bearing seal and sealing ring, and on the shaft part that corresponds in the shaft hole that the turbine shaft and the compressor back of the body coiled was established to the bearing seal cover, the echelonment was personally submitted to the periphery of bearing seal, and along the orientation of the directional turbine of impeller, the external diameter of bearing seal is crescent, and the shaft hole is the outer peripheral face matched with echelonment shaft hole with the bearing seal, the outer peripheral face of bearing seal is fitted with a contraceptive ring and is equipped with two at least sealed annulars, wherein has two sealing ring trenches at least in the ladder section of different external diameters, and every sealing ring inslot correspondence is provided with the sealing ring. The bearing seal of echelonment is personally submitted to the periphery, sealed annular and the cooperation of sealing ring that has in the ladder section of the compressor back of the body dish in echelonment shaft hole, different external diameters is used, has prevented the oil leak of turbo charger compressor end.
Description
Technical field
The utility model relates to automobile technical field, particularly a kind of gas compressor end sealing configuration of turbosupercharger, turbosupercharger and automobile.
Background technique
At present, the relief opening of the motor of automobile arranges turbosupercharger usually, the air of inertia impulsive force to the suction port leading to motor of the waste gas utilizing motor to discharge pressurizes, and increases the air inflow of the air passed in the cylinder of motor with this, thus improves the output power of motor.Turbosupercharger generally includes turbine, turbine shaft, intermediate, impeller, turbine is positioned at turbine casing, impeller is positioned at compressor casing, the through hole that one end of turbine shaft is fixedly connected with turbine, the other end passes intermediate, be fixedly connected with impeller, during turbine rotation, impeller is rotated, to pressurize to the air in compressor casing.In order to improve the working efficiency of turbosupercharger, intermediate offering lubrication channel usually towards the side of compressor housings, to lubricate the floating bearing on turbine shaft, thrust bearing etc., improving the working efficiency of turbosupercharger.In order to prevent lubricant oil overflow in lubrication channel in compressor casing, pollute the air after compressor pressure, the gas compressor end of turbosupercharger is provided with sealing configuration, to prevent lubricant oil overflow in lubrication channel in compressor casing.
In prior art, the gas compressor back of the body dish that the gas compressor end sealing configuration of turbosupercharger comprises shaft seal, seal ring and coordinates with compressor housings, one end that turbine shaft is fixedly connected with impeller is through after the through hole of intermediate, again through the axis hole of gas compressor back of the body dish, be fixedly connected with impeller, shaft seal is set on shaft part corresponding with axis hole on turbine shaft, the outer circumferential face of shaft seal is equipped with closure gasket groove, seal ring is provided with in closure gasket groove, by the effect of seal ring, to prevent lubricant oil overflow in lubrication channel in compressor casing.But, the oil sealing ability of this gas compressor end sealing configuration is poor, the easy overflow of lubricant oil in lubrication channel is in closure gasket groove, especially when the turbosupercharger with above-mentioned gas compressor end sealing configuration works long hours at low-load or under being operated in operating mode that high low-load frequently changes, impeller when rotated, understand the gas rotating in the gap between the wheel back of the body of impeller with gas compressor back of the body dish, and flow to centrifugal direction, the negative pressure that the wheel of impeller is carried on the back between gas compressor back of the body dish is larger, may by lubricant oil sucking-off, or lubricant oil is thrown out of in shaft seal is with turbine shaft rotary course, cause the leakage of oil of turbocharger air compressor end.
Model utility content
In view of this, the utility model is intended to the gas compressor end sealing configuration proposing a kind of turbosupercharger, poor and cause the technical problem of turbocharger air compressor end leakage of oil to solve oil sealing ability because of the gas compressor end sealing configuration of turbosupercharger in prior art.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of gas compressor end sealing configuration of turbosupercharger, comprise gas compressor back of the body dish, shaft seal and seal ring, described gas compressor back of the body dish offers axis hole, one end of the turbine shaft of described turbosupercharger is fixedly connected with turbine, the other end is fixedly connected with impeller through described axis hole; Described shaft seal is set on the described turbine shaft shaft part corresponding with described axis hole, the outer circumferential face of described shaft seal is stepped, and the direction of described turbine is pointed to along described impeller, the external diameter of described shaft seal increases gradually, and described axis hole is the stepped axis hole matched with the outer circumferential face of described shaft seal; The outer circumferential face of described shaft seal is equipped with at least two closure gasket grooves, and in described at least two closure gasket grooves, have at least the external diameter of the described shaft seal residing for two closure gasket grooves different, in each described closure gasket groove, correspondence is provided with seal ring, and the outer circumferential face of described seal ring and the hole wall of described stepped axis hole are fitted.
Further, the outer circumferential face of described shaft seal is divided into two different ladder sections, and each described ladder section is equipped with a described closure gasket groove.
Further, described turbosupercharger comprises intermediate, and described turbine shaft through the through hole of described intermediate, and is provided with thrust bearing between described intermediate and described turbine shaft;
Described shaft seal is provided with axle bearing mount portion towards one end of described turbine, and described thrust bearing is set on described axle bearing mount portion, and the outer circumferential face of described axle bearing mount portion is equipped with annular boss, and described annular boss is relative with the sphenoid surface of described thrust bearing.
Further, on described gas compressor back of the body dish, the below of described stepped axis hole is provided with drainback passage, the outlet of described drainback passage is communicated with the lubrication channel of described turbosupercharger, the import of described drainback passage is opened on the hole wall of shoulder hole section corresponding to described seal ring in described stepped axis hole with nearest apart from described impeller, and the import of described drainback passage is positioned at the side of the described seal ring nearest apart from described impeller towards described turbine.
Further, described drainback passage is arranged along the axioversion of described shaft seal, and the import of described drainback passage is positioned at the below of the outlet of described drainback passage.
Further, between described seal ring and described closure gasket groove, be provided with lubricant oil, between the outer circumferential face of described shaft seal and the hole wall of described stepped axis hole, be provided with described lubricant oil.
Relative to prior art, the gas compressor end sealing configuration of turbosupercharger described in the utility model has following advantage:
In the gas compressor end sealing configuration of the turbosupercharger that the utility model provides, on the one hand, the shaft seal that a sheathed outer circumferential face is stepped on turbine shaft, the direction of turbine is pointed to along impeller, the external diameter of shaft seal increases gradually, the axis hole of gas compressor back of the body dish is the stepped axis hole matched with the outer circumferential face of shaft seal, thus the direction of turbine is pointed to along impeller, the internal diameter of stepped axis hole increases gradually, thus the lubricant oil in lubrication channel between shaft seal and gas compressor back of the body dish to compressor casing overflow time, the internal diameter of the interior end difference flowed through required for lubricant oil is more and more less, then lubricant oil be difficult between shaft seal and gas compressor back of the body dish to compressor casing overflow, thus the oil sealing ability of the gas compressor end sealing configuration of turbosupercharger can be improved.
On the other hand, at least two sections of ladder sections are respectively provided with closure gasket groove to the outer circumferential face of shaft seal, and correspondence arranges seal ring in each closure gasket groove, when turbosupercharger normally works, under the effect of pressure difference, reduce from the seal ring close to impeller and the gap between the sidewall of corresponding closure gasket groove, with prevent lubricant oil between shaft seal and gas compressor back of the body dish to compressor casing overflow, when turbosupercharger works long hours at low-load or is operated in the operating mode of high low-load frequent changes, under the effect of pressure difference, reduce from the seal ring away from impeller and the gap between the sidewall of corresponding closure gasket groove, with prevent lubricant oil between shaft seal and gas compressor back of the body dish to compressor casing overflow, by the effect of at least two seal rings, thus the oil sealing ability of the gas compressor end sealing configuration of turbosupercharger can be improved.
Therefore, in the gas compressor end sealing configuration of the turbosupercharger that the utility model provides, by the stepped shaft seal of outer circumferential face, there is the closure gasket groove in the ladder section of the gas compressor back of the body dish of the stepped axis hole matched with the outer circumferential face of shaft seal, at least two sections of various outer diameters and be arranged on seal ring in closure gasket groove with the use of, improve the oil sealing ability of the gas compressor end sealing configuration of turbosupercharger, thus prevent the generation of the phenomenon of turbocharger air compressor end leakage of oil.
Another object of the present utility model is to propose a kind of turbosupercharger, poor and cause the technical problem of turbocharger air compressor end leakage of oil to solve oil sealing ability because of the gas compressor end sealing configuration of turbosupercharger in prior art.For achieving the above object, the technical solution of the utility model is achieved in that
A kind of turbosupercharger, described turbosupercharger is provided with the gas compressor end sealing configuration of the turbosupercharger as described in technique scheme.
The Dominant Facies that the gas compressor end sealing configuration of described turbosupercharger and above-mentioned turbosupercharger has relative to prior art is same, does not repeat them here.
Another object of the present utility model is to propose a kind of automobile, poor and cause the technical problem of turbocharger air compressor end leakage of oil to solve oil sealing ability because of the gas compressor end sealing configuration of turbosupercharger in prior art.For achieving the above object, the technical solution of the utility model is achieved in that
A kind of automobile, described automobile is provided with the turbosupercharger as described in technique scheme.
The Dominant Facies that described automobile and above-mentioned turbosupercharger hinge structure have is same, does not repeat them here.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
The structural representation of the gas compressor end sealing configuration that Fig. 1 is the turbosupercharger described in the utility model embodiment;
Fig. 2 is the enlarged view in Tu1Zhong A district.
Description of reference numerals:
1-turbine, 2-turbine shaft,
3-impeller, 4-gas compressor back of the body dish,
5-shaft seal, 6-closure gasket groove,
7-seal ring, 8-axle bearing mount portion,
9-annular boss, 10-drainback passage.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Refer to Fig. 1 and Fig. 2, the gas compressor end sealing configuration of the turbosupercharger that the utility model embodiment provides comprises gas compressor back of the body dish 4, shaft seal 5 and seal ring 7, gas compressor back of the body dish 4 offers axis hole, one end of the turbine shaft 2 of turbosupercharger is fixedly connected with turbine 1, the other end is fixedly connected with impeller 3 through axis hole; Shaft seal 5 is set on turbine shaft 2 shaft part corresponding with axis hole, and the outer circumferential face of shaft seal 5 is stepped, and points to the direction of turbine 1 along impeller 3, and the external diameter of shaft seal 5 increases gradually, and axis hole is the stepped axis hole matched with the outer circumferential face of shaft seal 5; The outer circumferential face of shaft seal 5 is equipped with at least two closure gasket grooves 6, and at least two closure gasket grooves 6, have at least the external diameter of the shaft seal 5 residing for two closure gasket grooves 6 different, in each closure gasket groove 6, correspondence is provided with seal ring 7, and the outer circumferential face of seal ring 7 and the hole wall of stepped axis hole are fitted.
During concrete enforcement, the stepped shaft seal 5 of outer circumferential face is set on turbine shaft 2, stepped axis hole on gas compressor back of the body dish 4 matches with the stepped perimeter face of shaft seal 5, the direction of turbine 1 is pointed to along impeller 3, the external diameter of shaft seal 5 increases gradually, namely, along direction from right to left in Fig. 2, the external diameter of shaft seal 5 increases gradually, the external diameter being positioned at the ladder section on right side is minimum, the external diameter being positioned at the ladder section in left side is maximum, accordingly, along direction from right to left in Fig. 2, the internal diameter of the stepped axis hole of gas compressor back of the body dish 4 increases gradually, the internal diameter being positioned at the shoulder hole section on right side is minimum, the internal diameter being positioned at the shoulder hole section in left side is maximum, on the outer circumferential face of shaft seal 5 at least two sections of various outer diameters ladder section on be equipped with closure gasket groove 6 respectively, in each closure gasket groove 6, correspondence is provided with seal ring 7, and the hole wall of the outer circumferential face of seal ring 7 and the stepped axis hole of gas compressor back of the body dish 4 is fitted.
When the turbosupercharger of the gas compressor end sealing configuration being provided with the turbosupercharger described in above-described embodiment normally works, impeller 3 rotates under the drive of turbine 1, certain gas is charged in gap between the wheel back of the body of impeller 3 and gas compressor back of the body dish 4, the air pressure in the gap between the wheel back of the body of impeller 3 and gas compressor back of the body dish 4 is greater than the oil pressure in the oil back chamber of lubrication channel, thus under the effect of pressure difference, seal ring 7 in the ladder section upper sealing ring groove 6 that external diameter is less and the gap between the sidewall of corresponding closure gasket groove 6 reduce, namely the gap in Fig. 2 between the seal ring 7 on right side and the sidewall of corresponding closure gasket groove 6 reduces, to play good seal action, when above-mentioned turbocharger operation is at specific operation, such as, under the low load condition worked long hours, or, time under the state that high low-load frequently replaces, gas in gap between the wheel back of the body of impeller 3 and gas compressor back of the body dish 4 flows away under the influence of centrifugal force, make, in the gap between the wheel of impeller 3 back of the body with gas compressor back of the body dish 4, there is larger negative pressure, oil pressure in the oil back chamber of now lubrication channel is greater than the air pressure in the gap between the wheel back of the body of impeller 3 with gas compressor back of the body dish 4, seal ring 7 in the ladder section upper sealing ring groove 6 that external diameter is larger and the gap between the sidewall of corresponding closure gasket groove 6 reduce, namely the gap in Fig. 2 between the seal ring 7 in left side and the sidewall of corresponding closure gasket groove 6 reduces, to play good seal action.
From the above, in the gas compressor end sealing configuration of the turbosupercharger that the utility model embodiment provides, on the one hand, the shaft seal 5 that a sheathed outer circumferential face is stepped on turbine shaft 2, the direction of turbine 1 is pointed to along impeller 3, the external diameter of shaft seal 5 increases gradually, the axis hole of gas compressor back of the body dish 4 is the stepped axis hole matched with the outer circumferential face of shaft seal 5, thus the direction of turbine 1 is pointed to along impeller 3, the internal diameter of stepped axis hole increases gradually, thus the lubricant oil in lubrication channel between shaft seal 5 and gas compressor back of the body dish 4 to compressor casing overflow time, the internal diameter of the interior end difference flowed through required for lubricant oil is more and more less, then lubricant oil be difficult between shaft seal 5 and gas compressor back of the body dish 4 to compressor casing overflow, thus the oil sealing ability of the gas compressor end sealing configuration of turbosupercharger can be improved.
On the other hand, at least two sections of ladder sections are respectively provided with closure gasket groove 6 to the outer circumferential face of shaft seal 5, and correspondence arranges seal ring 7 in each closure gasket groove 6, when turbosupercharger normally works, under the effect of pressure difference, reduce from the seal ring 7 close to impeller 3 and the gap between the sidewall of corresponding closure gasket groove 6, with prevent lubricant oil between shaft seal 5 and gas compressor back of the body dish 4 to compressor casing overflow, when turbosupercharger works long hours at low-load or is operated in the operating mode of high low-load frequent changes, under the effect of pressure difference, reduce from the seal ring 7 away from impeller 3 and the gap between the sidewall of corresponding closure gasket groove 6, with prevent lubricant oil between shaft seal 5 and gas compressor back of the body dish 4 to compressor casing overflow, by the effect of at least two seal rings 7, thus the oil sealing ability of the gas compressor end sealing configuration of turbosupercharger can be improved.
Therefore, in the gas compressor end sealing configuration of the turbosupercharger that the utility model embodiment provides, by the stepped shaft seal 5 of outer circumferential face, have the stepped axis hole matched with the outer circumferential face of shaft seal 5 gas compressor back of the body dish 4, at least two sections of various outer diameters ladder section on closure gasket groove 6 and be arranged on seal ring 7 in closure gasket groove 6 with the use of, improve the oil sealing ability of the gas compressor end sealing configuration of turbosupercharger, thus prevent the generation of the phenomenon of turbocharger air compressor end leakage of oil.
In addition, the outer circumferential face of shaft seal 5 is stepped, and on the outer circumferential face of shaft seal 5 at least two sections of various outer diameters ladder section on offer closure gasket groove 6 respectively, in closure gasket groove 6, correspondence arranges seal ring 7, at least two closure gasket grooves 6 are set with on the outer circumferential face in shaft seal 5 with same external diameter, in closure gasket groove 6, correspondence arranges seal ring 7 and compares, and when shaft seal 5, seal ring 7 and gas compressor back of the body dish 4 being assembled together, can facilitate the assembling of shaft seal 5, seal ring 7 and gas compressor back of the body dish 4.
It is worth mentioning that, in above-described embodiment, to be external diameter along the direction that impeller 3 points to turbine 1 increase shaft seal 5 gradually and the ladder-type shaft seal that outer circumferential face is stepped, in actual applications, shaft seal 5 can also to increase along the direction that impeller 3 points to turbine 1 and outer circumferential face is the taper shaft seal of sphenoid surface gradually for external diameter.
In above-described embodiment, the quantity of the ladder section on the outer circumferential face of shaft seal 5 can be arranged according to the actual requirements, such as, can be two sections, three sections or four sections, and every section of ladder section can arrange one or more closure gasket groove 6.In the present embodiment, please continue to refer to Fig. 1 and Fig. 2, the outer circumferential face of shaft seal 5 is divided into two different ladder sections, and each ladder section is equipped with a closure gasket groove 6.During concrete enforcement, the outer circumferential face of shaft seal 5 has the ladder section of two various outer diameters, the ladder segment distance impeller 3 that external diameter is less is nearer, the ladder segment distance impeller 3 that external diameter is larger is far away, and two sections of ladder sections are equipped with a closure gasket groove 6 respectively, in each closure gasket groove 6, correspondence arranges a seal ring 7.During installation, can shaft seal 5 be sleeved on turbine shaft 2, then two seal rings 7 are arranged on respectively in corresponding closure gasket groove 6, then make the end of turbine shaft 2 through the stepped axis hole of gas compressor back of the body dish 4, and make the ladder section of shaft seal 5 insert in the stepped axis hole of gas compressor back of the body dish 4, match with stepped axis hole, and the hole wall of the outer circumferential face of seal ring 7 and stepped axis hole is fitted.The outer circumferential face of shaft seal 5 arranges two sections of ladder sections, with arrange more than compared with two sections of ladder sections on the outer circumferential face of shaft seal 5, the quantity of the ladder section that the outer circumferential face decreasing shaft seal 5 matches with the stepped axis hole of gas compressor back of the body dish 4, thus conveniently shaft seal 5 and gas compressor back of the body dish 4 are assembled together, the difficulty of processing of the gas compressor back of the body dish 4 that simultaneously can reduce shaft seal 5 and match with shaft seal 5, and save the time of processing shaft seal 5 and gas compressor back of the body dish 4.
In addition, one section of ladder section arranges a closure gasket groove 6, with arrange compared with multiple closure gasket groove 6 in same section of ladder section, when shaft seal 5 and gas compressor back of the body dish 4 are assembled together, by same ladder section is inserted gas compressor back of the body dish 4 towards the seal ring 7 in the closure gasket groove 6 of impeller 3 stepped axis hole in after, can prevent from same ladder section causes breakage away from the seal ring 7 in the closure gasket groove 6 of impeller 3 is subject to the extruding of the hole wall of the stepped axis hole of gas compressor back of the body dish 4.
Moreover, when the shaft seal 5 of same external diameter arranges multiple closure gasket groove 6, during installation, the opening of the seal ring 7 in each closure gasket groove 6 is towards must be at an angle, such as, when two closure gasket grooves 6 being set in the shaft seal 5 of same external diameter, the opening of two seal rings 7 is towards being 180 °, difficulty when shaft seal 5 and gas compressor back of the body dish 4 being assembled together is caused to increase, and in the present embodiment, closure gasket groove 6 is opened in be had at least two ladder sections of various outer diameter, when assembling, the opening of the seal ring 7 in the ladder section of various outer diameter is towards can be identical, also can be different, thus facilitate and shaft seal 5 and gas compressor back of the body dish 4 are assembled together.
Please continue to refer to Fig. 1 and Fig. 2, turbosupercharger comprises intermediate, and turbine shaft 2 through the through hole of intermediate, and is provided with thrust bearing between intermediate and turbine shaft 2; Shaft seal 5 is provided with axle bearing mount portion 8 towards one end of turbine 1, and thrust bearing is set on axle bearing mount portion 8, the outer circumferential face of axle bearing mount portion 8 is equipped with annular boss 9, and annular boss 9 is relative with the sphenoid surface of thrust bearing.During concrete enforcement, shaft seal 5 is extended with axle bearing mount portion 8 towards the end of turbine 1, thrust bearing between intermediate and turbine shaft 2 is set on axle bearing mount portion 8, have annular boss 9 between the outer circumferential face of the outer circumferential face of axle bearing mount portion 8 and the maximum ladder section of shaft seal 5 top external diameter, annular boss 9 is relative with the sphenoid surface of thrust bearing.When turbocharger operation, lubricant oil can enter between annular boss 9 and thrust bearing from lubrication channel, and form oil-film force, this oil-film force can bear the axial force of turbine 1 along turbine shaft 2, prevents turbine 1 from axial float occurring.
Please continue to refer to Fig. 2, on gas compressor back of the body dish 4, the below of stepped axis hole is provided with drainback passage 10, the outlet of drainback passage 10 is communicated with the lubrication channel of turbosupercharger, the import of drainback passage 10 is opened on the hole wall of shoulder hole section corresponding to seal ring 7 nearest with distance impeller 3 in stepped axis hole, and the import of drainback passage 10 is positioned at the side of the nearest seal ring 7 of distance impeller 3 towards turbine 1.For example, the outer circumferential face of shaft seal 5 have two sections of ladder sections, every section of ladder section is equipped with a closure gasket groove 6, seal ring 7 is provided with in closure gasket groove 6, gas compressor back of the body dish 4 is provided with drainback passage 10, drainback passage 10 is positioned at the below of stepped axis hole, the outlet of drainback passage 10 is communicated with the lubrication channel on intermediate, preferably be communicated with the oil back chamber of lubrication channel, the import of drainback passage 10 is opened on the inwall of the nearest shoulder hole section of stepped axis hole middle distance impeller 3, namely the import of drainback passage 10 is offered on the inwall of the shoulder hole section on right side in fig. 2, and be arranged in the left side of the seal ring 7 on Fig. 2 right side, when lubricant oil between gas compressor back of the body dish 4 and shaft seal 5 by after in lubrication channel overflow to the closure gasket groove 6 on right side, lubricant oil can flow back in lubrication channel by drainback passage 10, prevent lubricant oil from flowing through closure gasket groove 6 overflow on right side in compressor casing, thus prevent the leakage of oil of turbocharger air compressor end further.In addition, drainback passage 10 is arranged on the below of stepped axis hole, can make to be affected by gravity and the lubricant oil collected on the inwall of the bottom of stepped axis hole can flow back into lubrication channel from drainback passage 10 smoothly, prevent the leakage of oil of turbocharger air compressor end further.
Please continue to refer to Fig. 2, drainback passage 10 is arranged along the axioversion of shaft seal 5, and the import of drainback passage 10 is positioned at the below of the outlet of drainback passage 10.During concrete enforcement, drainback passage 10 being axially obliquely installed towards intermediate along shaft seal 5, and be positioned at the below of stepped axis hole, further facilitating lubricant oil flows back in lubrication channel through drainback passage 10, prevent lubricant oil from flowing through closure gasket groove 6 overflow on right side in compressor casing, and then prevent the leakage of oil of turbocharger air compressor end.
When being provided with the turbocharger operation of gas compressor end sealing configuration of the turbosupercharger that above-described embodiment provides, turbine 1 rotates, the turbine shaft be fixedly connected with turbine 1 is driven to rotate, and then drive the impeller 3 be fixedly installed on the end of turbine shaft 2 to rotate, turbine shaft 2 is when rotating, be set in the shaft seal 5 of turbine shaft 2 also along with turbine shaft 2 rotates, and gas compressor back of the body dish 4 is fixedly connected with compressor casing, thus gas compressor back of the body dish 4 maintains static, namely have between shaft seal 5 and gas compressor back of the body dish 4 and relatively rotate, seal ring 7 is arranged in the closure gasket groove 6 on the outer circumferential face of shaft seal 5, between the cell wall of seal ring 7 and closure gasket groove 6 and bottom land, there is certain gap, thus have between seal ring 7 and shaft seal 5 and relatively rotate.
In order to reduce the friction between closure gasket groove 6 on the outer circumferential face of shaft seal 5 and seal ring 7 and when relatively rotating between shaft seal 5 and gas compressor back of the body dish 4, preferably, during assembling, be provided with lubricant oil between seal ring 7 and closure gasket groove 6, between the outer circumferential face of shaft seal 5 and the hole wall of stepped axis hole, be provided with lubricant oil.For example, when assembling is provided with the turbosupercharger of gas compressor end sealing configuration of the turbosupercharger that above-described embodiment provides, lubricant oil is applied in advance on the hole wall of the outer circumferential face of closure gasket groove 6, seal ring 7, shaft seal 5 and the stepped axis hole of gas compressor back of the body dish 4, after having assembled, turbosupercharger operationally, can reduce the friction between closure gasket groove 6 on the outer circumferential face of shaft seal 5 and seal ring 7 and when relatively rotating between shaft seal 5 and gas compressor back of the body dish 4.In addition, on the hole wall of the outer circumferential face of closure gasket groove 6, seal ring 7, shaft seal 5 and the stepped axis hole of gas compressor back of the body dish 4, apply lubricant oil in advance, can conveniently shaft seal 5, seal ring 7 and gas compressor back of the body dish 4 be assembled together.
The utility model embodiment also provides a kind of turbosupercharger, and described turbosupercharger is provided with the gas compressor end sealing configuration of the turbosupercharger as described in above-described embodiment.
The Dominant Facies that the gas compressor end sealing configuration of described turbosupercharger and above-mentioned turbosupercharger has relative to prior art is same, does not repeat them here.
The utility model embodiment also provides a kind of automobile, and described automobile is provided with the turbosupercharger as described in above-described embodiment,
The Dominant Facies that described automobile and above-mentioned turbosupercharger hinge structure have is same, does not repeat them here.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. the gas compressor end sealing configuration of a turbosupercharger, it is characterized in that, comprise gas compressor back of the body dish (4), shaft seal (5) and seal ring (7), described gas compressor back of the body dish (4) offers axis hole, one end of the turbine shaft (2) of described turbosupercharger is fixedly connected with turbine (1), the other end is fixedly connected with impeller (3) through described axis hole; Described shaft seal (5) is set on described turbine shaft (2) shaft part corresponding with described axis hole, the outer circumferential face of described shaft seal (5) is stepped, and the direction of described turbine (1) is pointed to along described impeller (3), the external diameter of described shaft seal (5) increases gradually, and described axis hole is the stepped axis hole matched with the outer circumferential face of described shaft seal (5); The outer circumferential face of described shaft seal (5) is equipped with at least two closure gasket grooves (6), and in described at least two closure gasket grooves (6), have at least the external diameter of the described shaft seal (5) residing for two closure gasket grooves (6) different, the interior correspondence of each described closure gasket groove (6) is provided with seal ring (7), and the outer circumferential face of described seal ring (7) and the hole wall of described stepped axis hole are fitted.
2. the gas compressor end sealing configuration of turbosupercharger according to claim 1, it is characterized in that, the outer circumferential face of described shaft seal (5) is divided into two different ladder sections, and each described ladder section is equipped with a described closure gasket groove (6).
3. the gas compressor end sealing configuration of turbosupercharger according to claim 1, it is characterized in that, described turbosupercharger comprises intermediate, described turbine shaft (2) through the through hole of described intermediate, and is provided with thrust bearing between described intermediate and described turbine shaft (2);
Described shaft seal (5) is provided with axle bearing mount portion (8) towards one end of described turbine (1), described thrust bearing is set on described axle bearing mount portion (8), the outer circumferential face of described axle bearing mount portion (8) is equipped with annular boss (9), described annular boss (9) is relative with the sphenoid surface of described thrust bearing.
4. the gas compressor end sealing configuration of turbosupercharger according to claim 1, it is characterized in that, on described gas compressor back of the body dish (4), the below of described stepped axis hole is provided with drainback passage (10), the outlet of described drainback passage (10) is communicated with the lubrication channel of described turbosupercharger, the import of described drainback passage (10) is opened on the hole wall of shoulder hole section corresponding with the described seal ring (7) nearest apart from described impeller (3) in described stepped axis hole, and the import of described drainback passage (10) is positioned at the side of the described seal ring (7) nearest apart from described impeller (3) towards described turbine (1).
5. the gas compressor end sealing configuration of turbosupercharger according to claim 4, it is characterized in that, described drainback passage (10) is arranged along the axioversion of described shaft seal (5), and the import of described drainback passage (10) is positioned at the below of the outlet of described drainback passage (10).
6. according to the gas compressor end sealing configuration of the arbitrary described turbosupercharger of claim 1-5, it is characterized in that, during assembling, be provided with lubricant oil between described seal ring (7) and described closure gasket groove (6), between the outer circumferential face of described shaft seal (5) and the hole wall of described stepped axis hole, be provided with described lubricant oil.
7. a turbosupercharger, is characterized in that, described turbosupercharger be provided with as arbitrary in claim 1-6 as described in the gas compressor end sealing configuration of turbosupercharger.
8. an automobile, is characterized in that, described automobile is provided with turbosupercharger as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520844686.2U CN205101283U (en) | 2015-10-28 | 2015-10-28 | Turbo charger's compressor end seal structure , turbo charger and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520844686.2U CN205101283U (en) | 2015-10-28 | 2015-10-28 | Turbo charger's compressor end seal structure , turbo charger and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205101283U true CN205101283U (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520844686.2U Active CN205101283U (en) | 2015-10-28 | 2015-10-28 | Turbo charger's compressor end seal structure , turbo charger and car |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351246A (en) * | 2015-12-14 | 2016-02-24 | 中国北方发动机研究所(天津) | Arrangement structure of turbocharger sealing rings |
| CN106217076A (en) * | 2016-08-17 | 2016-12-14 | 中国北方发动机研究所(天津) | A kind of radial-flow type rotating shaft of supercharger turbine fixture and closure gasket groove processing method |
| CN108869383A (en) * | 2018-07-23 | 2018-11-23 | 丽水市艺木创意设计有限公司 | O-shaped high pressure pump gland |
| CN109026361A (en) * | 2018-09-18 | 2018-12-18 | 湖南天雁机械有限责任公司 | A kind of New type gland cover used in turbocharger |
| CN113586510A (en) * | 2021-08-28 | 2021-11-02 | 扬州根源精机工业有限公司 | Combined sealing structure of wear ring of water feed pump |
-
2015
- 2015-10-28 CN CN201520844686.2U patent/CN205101283U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351246A (en) * | 2015-12-14 | 2016-02-24 | 中国北方发动机研究所(天津) | Arrangement structure of turbocharger sealing rings |
| CN106217076A (en) * | 2016-08-17 | 2016-12-14 | 中国北方发动机研究所(天津) | A kind of radial-flow type rotating shaft of supercharger turbine fixture and closure gasket groove processing method |
| CN106217076B (en) * | 2016-08-17 | 2018-05-08 | 中国北方发动机研究所(天津) | A kind of radial-flow type rotating shaft of supercharger turbine fixture and closure gasket groove processing method |
| CN108869383A (en) * | 2018-07-23 | 2018-11-23 | 丽水市艺木创意设计有限公司 | O-shaped high pressure pump gland |
| CN109026361A (en) * | 2018-09-18 | 2018-12-18 | 湖南天雁机械有限责任公司 | A kind of New type gland cover used in turbocharger |
| CN113586510A (en) * | 2021-08-28 | 2021-11-02 | 扬州根源精机工业有限公司 | Combined sealing structure of wear ring of water feed pump |
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