CN202970812U - Sealing structure at end of gas compressor of turbocharger - Google Patents
Sealing structure at end of gas compressor of turbocharger Download PDFInfo
- Publication number
- CN202970812U CN202970812U CN 201220601197 CN201220601197U CN202970812U CN 202970812 U CN202970812 U CN 202970812U CN 201220601197 CN201220601197 CN 201220601197 CN 201220601197 U CN201220601197 U CN 201220601197U CN 202970812 U CN202970812 U CN 202970812U
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- oil sealing
- sealing cap
- oil
- gas compressor
- compressor impeller
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Abstract
The utility model discloses a sealing structure at the end of a gas compressor of a turbocharger. The sealing structure comprises a bearing body (1), a rotor (2), a gas compressor impeller (3), a thrust bearing (4), an oil sealing cover (5) and a sealing sleeve (6), wherein a screw hole (57) is formed in the oil sealing cover (5); the oil sealing cover (5) is fixedly arranged on the bearing body (1) through a bolt (571); an outer lateral surface (52) of the oil sealing cover (5) is a concave surface; a part, which is close to a mounting hole (51) of the oil sealing cover (5), on the outer lateral surface (52) of the oil sealing cover (5), is tightly adjacent to the back surface of the gas compressor impeller (3); and an oil storing cavity (55) which can be used for storing lubricating oil is formed in the upper part of the inner side wall of an annular drainage cavity (54) of the oil sealing cover (5). The sealing structure has the characteristics that an internal structure is stable; the cavity in the outer lateral surface of the oil sealing cover is small in size; secondary pressurizing and flow choking can be realized; an oil film is established in advance; a favorable oil-leakage preventing effect is obtained; an axial force can be buffered; and starting friction and damage can be reduced.
Description
Technical field
The utility model relates to the gas compressor end sealing configuration of a kind of turbosupercharger of motor, particularly a kind of turbosupercharger.
Background technique
At present, nearly all diesel engine has all adopted turbocharging technology, and turbocharging technology also the forward petrol engine generally use and promote.Turbosupercharger has become the critical component of supercharged engine pressurization system.The parameter indexs such as the power performance of user after to the turbocharger matching motor, economic performance, environmental-protecting performance require more and more higher, and what cause especially terminal use's strong interest at present is the Leakage (being mainly from the leakage of oil of gas compressor end) of turbosupercharger.
Lubricating structure and the working principle of the gas compressor end of turbosupercharger: as shown in Figure 1, lubricant oil enters into the bearing support oil leab from the filler opening of bearing support 1, with the secondary component of each spin friction such as lubrication and cooling rotor 2, thrust bearing 4, get back to the fuel tank of motor from the oil outlet of bearing support 1 at last.For preventing that lubricant oil from leaking from the gas compressor end, be provided with the gas compressor end sealing configuration of turbosupercharger, as shown in Fig. 1-2, the gas compressor end sealing configuration of present turbosupercharger, it comprises bearing support 1, rotor 2, compressor impeller 3, thrust bearing 4, oil sealing cap 5, stuffing box gland 6 and back-up ring 7; Rotor 2 is main shaft, and it is the public rotating shaft of gas compressor and the pressure-increasing machine of turbosupercharger; Stuffing box gland 6 is arranged on rotor 2 and between compressor impeller 3 and thrust bearing 4; Be provided with mounting hole in the middle of oil sealing cap 5, oil sealing cap 5 is arranged on stuffing box gland 6 by mounting hole, between itself and stuffing box gland 6 for movingly, be that stuffing box gland 6 can coexist with rotor 2 one and rotates in the mounting hole of oil sealing cap 5, be provided with seal ring 61 between oil sealing cap 5 and stuffing box gland 6, leak with the direction of blocking-up lubricant oil from the gap between oil sealing cap 5 and stuffing box gland 6 to compressor impeller 3.
edge, the outside of oil sealing cap 5 (referring to the right side from Fig. 1) is provided with edge annular breach 59, and bearing support 1 inner chamber is provided with draw-in groove 12 corresponding to the position of oil sealing cap 5, back-up ring 7 be installed in the draw-in groove 12 of bearing support 1 and gear outside the edge in the outside of oil sealing cap 5 annular breach 59, back-up ring 7 can be with oil sealing cap 5 gears to the right, namely can limit oil sealing cap 5 moves to compressor impeller 3 directions vertically and (indirectly can also limit thrust bearing 4, stuffing box gland 6 moves to compressor impeller 3 directions vertically), although back-up ring 7 can to a certain degree limit oil sealing cap 5 and move to compressor impeller 3 directions vertically, oil sealing cap 5 is play a part certain fixing, but because back-up ring 7 itself just is installed in the draw-in groove 12 of bearing support 1, can't be completely fixed, certain axial float and radial displacement can occur, thereby make between oil sealing cap 5 and stuffing box gland 6 position unstable, cause the gap length between oil sealing cap 5 and stuffing box gland 6 constantly changing (during work), affect the sealing effect between oil sealing cap 5 and stuffing box gland 6, be that lubricant oil can be easy to from the mounting hole of oil sealing cap 5 to external leakage, and because there is radial displacement in oil sealing cap 5, lubricant oil also can leak out between the periphery of oil sealing cap 5 and bearing support 1, can there be serious Leakage so fix oil sealing cap 5 by back-up ring 7.
there is a center annular breach 591 in the outer side surface of oil sealing cap 5 near the position of mounting hole (with the back side phase close vicinity of the impeller of gas compressor), cause the outer side surface of oil sealing cap 5 very large near part and the gap between compressor impeller 3 of mounting hole, the negative pressure at compressor impeller 3 back sides is (particularly when motor during in the work of sub load or low-load, especially in the plateau section motor car engine during at the lower long slope towing astern) be easy to permeate oil sealing cap 5 inboards, cause Leakage, be that the gap is too large, when the back side of compressor impeller 3 forms negative pressure, channel width due to this gap formation, between oil sealing cap 5 and stuffing box gland 6, air can enter the negative pressure cavity at the back side of compressor impeller 3 immediately, thereby the lubricant oil between oil sealing cap 5 and stuffing box gland 6 is easy to the negative pressure cavity leakage at the back side of compressor impeller 3, cause leakage of oil.
the inboard of oil sealing cap 5 is provided with the annular drainage lumens 54 of indent, although drainage lumens 54 has certain drainage, lubricant oil can be introduced the interface of oil sealing cap 5 and stuffing box gland 6, oil sealing cap 5 and stuffing box gland 6 parts such as grade are lubricated, but annular drainage lumens 54 does not have the effect of oil storage, when motor when just starting, when lubricant oil does not enter the oil pocket of bearing support 1, annular drainage lumens 54 does not yet have lubricant oil naturally, do not set up oil film between oil sealing cap 5 and stuffing box gland 6, cause like this oil sealing cap 5 and stuffing box gland 6 parts such as grade to be in " dry friction " state, be easy to damage oil sealing cap 5 and stuffing box gland 6 parts such as grade, cause simultaneously more serious Leakage.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and gas compressor end sealing configuration that a kind of turbosupercharger is provided, it mainly can solve following technical problem: its internal structure is more firm, can improve between oil sealing cap and stuffing box gland, the sealing effect between oil sealing cap and bearing support; Toroidal cavity between the outer side surface of oil sealing cap and the back side of compressor impeller is less, just can eliminate negative pressure in the back side of the outer side surface of oil sealing cap and compressor impeller as long as enter a small amount of air, prevent that effectively negative pressure from causing lubricant oil to leak to the gas compressor end, also have the effect of carrying out damping vibration attenuation for compressor impeller and rotor assembly; The outer side surface of oil sealing cap can reach the effect of secondary booster choked flow near the part of its mounting hole and the back side of compressor impeller, can also play fine setting simultaneously, cushion the effect of pressure side axial force; When lubricant oil does not enter the oil pocket of bearing support, can set up oil film in advance between oil sealing cap and stuffing box gland, stop lubricant oil to flow to seal ring, turbocharger bearing system is carried out supercharging choked flow first, leakage of oil when preventing from just starting, and can reduce starting friction and damage.
The technical solution of the utility model is: a kind of gas compressor end sealing configuration of turbosupercharger, and it comprises bearing support, rotor, compressor impeller, thrust bearing, oil sealing cap and stuffing box gland; Rotor is main shaft; Stuffing box gland is arranged on rotor and between compressor impeller and thrust bearing; Be provided with mounting hole in the middle of oil sealing cap, oil sealing cap is arranged on stuffing box gland by mounting hole, is provided with seal ring between oil sealing cap and stuffing box gland, and seal ring is double seal ring; Oil sealing cap is provided with screw, and bearing support is provided with corresponding screw with thrust bearing, and oil sealing cap is mounted by means of bolts on bearing support.
The further technological scheme of the utility model is: the periphery of described oil sealing cap also is provided be used to the inner side step face that presses seal ring, bearing support is provided with the step surface corresponding with the inner side step face of oil sealing cap, between oil sealing cap and bearing support, seal ring is installed, seal ring is between the step surface of the inner side step face of oil sealing cap and bearing support.
The utility model further technological scheme is: on described oil sealing cap, the edge circumferentially is evenly equipped with four screws.
The utility model further technological scheme is: the outer side surface of described oil sealing cap is concave surface, forms a toroidal cavity between the outer side surface of the oil sealing cap of spill and the back side of compressor impeller.
The utility model also further technological scheme be: between the outer side surface of the oil sealing cap of described spill and the back side of compressor impeller, the cross section of formation one toroidal cavity becomes Olive Shape.
The further technological scheme of the utility model is: the part of close its mounting hole of the outer side surface of described oil sealing cap is close to mutually with the back side of compressor impeller.
The further technological scheme of the utility model is: the part of close its mounting hole of the outer side surface of described next-door neighbour's oil sealing cap mutually is 0.15～1.5 millimeter with the spacing L in the gap at the back side of compressor impeller.
The further technological scheme of the utility model is: the inboard of described oil sealing cap is provided with the annular drainage lumens of indent, the upper position of the madial wall of the annular drainage lumens of oil sealing cap is provided with the shoe cream room that can store lubricant oil, and the vertical step surface that stuffing box gland is provided with is just keeping off the lateral opening place at the shoe cream room of oil sealing cap.
The utility model compared with prior art has following features:
1. on oil sealing cap, the edge circumferentially is evenly equipped with four screws, oil sealing cap passes to be fixed from its screw by bolt and is arranged on bearing support, the periphery of oil sealing cap also is provided be used to the inner side step face that presses seal ring, bearing support is provided with the step surface corresponding with the inner side step face of oil sealing cap, between oil sealing cap and bearing support, seal ring is installed, seal ring is between the step surface of the inner side step face of oil sealing cap and bearing support, seal ring tightly is pressed against between the step surface of the inner side step face of oil sealing cap and bearing support by bolt, can make and reach good sealing effect between oil sealing cap and bearing support, tightly be pressed against oil sealing cap on bearing support by bolt, except making between oil sealing cap and bearing support good sealing effect, can also make the oil sealing cap can be more stable, can prevent oil sealing cap axial float and radial displacement, thereby make the gap between oil sealing cap and stuffing box gland more stable, can effectively prevent lubricant oil from the clearance leakage between oil sealing cap and stuffing box gland, namely better to guaranteeing the sealing effect between oil sealing cap and stuffing box gland.
2. the outer side surface of oil sealing cap is the edge and can matches with the back side shape of compressor impeller well to the concave surface of compressor impeller direction projection, thereby only exist a very narrow cross section to become olivary toroidal cavity between the back side of the outer side surface that makes oil sealing cap and compressor impeller, can overcome the defective that has a very large cavity between the back side that prior art makes the outer side surface of oil sealing cap and compressor impeller, thereby it is faster to make replenish air get, as long as namely entering a small amount of air just can eliminate the outer side surface of oil sealing cap and become negative pressure in olivary toroidal cavity with the cross section at the back side of compressor impeller, prevent that effectively negative pressure from causing lubricant oil to leak to the gas compressor end, except preventing effectively that negative pressure from causing lubricant oil to leak to the gas compressor end, also has the effect of carrying out damping vibration attenuation for compressor impeller and rotor assembly, because compressor impeller can form the air layer of layer, exist the damping vibration attenuation effect of a very thin air layer far better than prior art.
3. the part of close its mounting hole of the outer side surface of oil sealing cap is close to mutually with the back side of compressor impeller, can reach the effect of secondary booster choked flow, stops lubricant oil from flowing out through the direction of seal ring to compressor impeller between oil sealing cap and stuffing box gland; The very little effect that can also play fine setting, buffering pressure side axial force in gap.
4. the upper position of the madial wall of the annular drainage lumens of oil sealing cap is provided with the shoe cream room that can store a certain amount of lubricant oil, the vertical step surface that stuffing box gland is provided with is just blocking the lateral opening of the shoe cream room of oil sealing cap, the lubricant oil of storing in (being generally when just starting) shoe cream room when lubricant oil does not enter the oil pocket of bearing support can be set up oil film in advance between oil sealing cap and stuffing box gland, stop lubricant oil to flow to seal ring, turbocharger bearing system is carried out supercharging choked flow first, leakage of oil when preventing from just starting, can also be in advance to the lubricate movingly between oil sealing cap and stuffing box gland, reduce starting friction and damage.
In order to be illustrated more clearly in the utility model, enumerate following examples, but its to scope of invention without any restriction.
Description of drawings
Fig. 1 is the gas compressor end sealed structural representation of the turbosupercharger of this prior art;
Fig. 2 is that Fig. 1 is along the partial enlarged drawing in A line scope;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is that Fig. 3 is along the partial enlarged drawing in B line scope;
Fig. 5 is that Fig. 4 is along the partial enlarged drawing in C line scope;
Fig. 6 is the structural representation of oil sealing cap of the present utility model;
Fig. 7 is the D-D sectional view of Fig. 6.
Embodiment
as shown in Fig. 3-7: a kind of gas compressor end sealing configuration of turbosupercharger, it comprises bearing support 1, rotor 2, compressor impeller 3, thrust bearing 4, oil sealing cap 5 and stuffing box gland 6, rotor 2 is main shaft, and it is the public rotating shaft of gas compressor and the pressure-increasing machine of turbosupercharger, stuffing box gland 6 is arranged on rotor 2 and between compressor impeller 3 and thrust bearing 4, be provided with mounting hole 51(as shown in Fig. 6-7 in the middle of oil sealing cap 5), oil sealing cap 5 is arranged on stuffing box gland 6 by mounting hole 51, between itself and stuffing box gland 6 for movingly, be that stuffing box gland 6 can coexist with rotor 2 one and rotates in the mounting hole 51 of oil sealing cap 5, be provided with seal ring 61 between oil sealing cap 5 and stuffing box gland 6, seal ring 61 is double seal ring (two seal ring), leak with the direction of blocking-up lubricant oil from the gap between oil sealing cap 5 and stuffing box gland 6 to compressor impeller 3, the outer side surface 52(of oil sealing cap 5 is namely over against the one side of compressor impeller 3) integral body is the edge and (is the protruding concave surface in middle concave edge to the concave surface of compressor impeller 3 direction projections, namely be similar to dish face shape), this concave of the outer side surface 52 of oil sealing cap 5 can match with the back side shape of compressor impeller 3 well, thereby only exist a very narrow cross section to become olivary toroidal cavity 53 between the back side of the outer side surface 52 that makes oil sealing cap 5 and compressor impeller 3, greatly dwindled the space size of toroidal cavity 53, can make the gap between the back side of the outer side surface 52 of oil sealing cap 5 and compressor impeller 3 less, approximate rectangular edge, the cross section that reserves with the outer side surface 52 of oil sealing cap 5 of the prior art annular gap structure is just in time opposite, and (edge that is oil sealing cap 5 of the present utility model does not only design the annular breach in edge, on the contrary also will be to compressor impeller 3 direction projections, just filled up edge of the prior art annular breach), can overcome the defective that has a very large cavity between the back side that prior art makes the outer side surface 52 of oil sealing cap 5 and compressor impeller 3, thereby it is faster to make replenish air get, as long as namely entering a small amount of air just can eliminate the outer side surface 52 of oil sealing cap 5 and become negative pressure in olivary toroidal cavity 53 with the cross section at the back side of compressor impeller 3, prevent that effectively negative pressure from causing lubricant oil to leak to the gas compressor end, the outer side surface 52 of oil sealing cap 5 becomes olivary toroidal cavity 53 with narrow cross section between the back side of compressor impeller 3, except preventing effectively that negative pressure from causing lubricant oil to leak to the gas compressor end, also has the effect of carrying out damping vibration attenuation for compressor impeller 3 and rotor 1 assembly, because compressor impeller 3 can form the air layer of layers, exist the damping vibration attenuation effect of air layer of very thick (gap is very wide) far better than prior art, outer side surface 52 shapes of oil sealing cap 5 will adapt with the back side shape of compressor impeller 3 in a word, so that the space of the toroidal cavity 53 between the back side of the outer side surface 52 of oil sealing cap 5 and compressor impeller 3 is very little, guarantee just can eliminate the negative pressure in toroidal cavity 53 when entering a small amount of air, can't affect the rotation of compressor impeller 3 simultaneously.
the part (being the intermediate portion of the outer side surface 52 of oil sealing cap 5) of close its mounting hole 51 of the outer side surface 52 of oil sealing cap 5 is close to (as shown in Figure 5) mutually with the back side of compressor impeller 3, be that gap 53 between the back side of the part of close mounting hole 51 of outer side surface 52 of oil sealing cap 5 and compressor impeller 3 is very little, the spacing L in gap 53 is 0.15～1.5 millimeter, gap 53 very I to reach the effect of secondary booster choked flow (in shoe cream room 55 described below storage lubricant oil can set up in advance oil film and seal ring 61 as choked flow first between oil sealing cap 5 and stuffing box gland 6), stop lubricant oil (being generally machine oil) from flowing out through the direction of seal ring 61 to compressor impeller 3 between oil sealing cap 5 and stuffing box gland 6, the very little effect that can also play fine setting, buffering pressure side axial force in gap 53, as shown in Figure 2, be just a very large center annular breach 591 between the part of the close mounting hole of the outer side surface 52 of the oil sealing cap of prior art and the back side of compressor impeller 3, there is no the effect of secondary booster choked flow.
the inboard of oil sealing cap 5 is provided with the annular drainage lumens 54(of indent as shown in Fig. 6-7), the upper position of the madial wall of the annular drainage lumens 54 of oil sealing cap 5 is provided with the shoe cream room 55 that can store a certain amount of lubricant oil, the vertical step surface 62 that stuffing box gland 6 is provided with is just blocking the lateral opening of the shoe cream room 55 of oil sealing cap 5, the vertical step surface 62 of stuffing box gland 6 can prevent on the one hand in shoe cream room 55 lubricant oil from the side opening leak fast, the lubricant oil that can limit on the other hand in shoe cream room 55 can only infiltrate in the gap between oil sealing cap 5 and stuffing box gland 6, in (being generally when just starting) shoe cream room 55, the lubricant oil of storage can not set up oil film in advance between oil sealing cap 5 and stuffing box gland 6 when lubricant oil enters the oil pocket of bearing support 1, stop lubricant oil to flow to seal ring 61, turbocharger bearing system is carried out supercharging choked flow first, leakage of oil when preventing from just starting, can also be in advance between oil sealing cap 5 and stuffing box gland 6 (described member movingly is mainly the mounting hole 51 of oil sealing cap 5 movingly, stuffing box gland 6 outer side surfaces and vertical step surface 62, seal ring 61) lubricate, reduce starting friction and damage, the lower inside of oil sealing cap 5 is provided with the oil outlet 56 that is connected with drainage lumens 54, and oil outlet 6 places are connected with return tube, with lubricant oil drainage oil sump tank, realize the recycling of lubricant oil by return tube.
on oil sealing cap 5, the edge circumferentially is evenly equipped with four screws 57, bearing support 1 is provided with the screw corresponding with it (wherein the screw on bearing support 1 is for establishing threaded screw) with thrust bearing 4, oil sealing cap 5 passes from its screw 57 by bolt 571 to be fixed and is arranged on (bolt also passes the corresponding screw on thrust bearing 4 simultaneously) on bearing support 1, the periphery of oil sealing cap 5 also is provided be used to the inner side step face 58(inner side step face that presses seal ring and refers to that step surface is in inner side surface, step surface is towards the inboard, just refer to that by inner side step face shown in Figure 7 step surface is towards the right side), bearing support 1 is provided with the step surface 11(corresponding with the inner side step face 58 of oil sealing cap 5 as shown in Figure 4), between oil sealing cap 5 and bearing support 1, seal ring 581 is installed, seal ring 581 is between the step surface 11 of the inner side step face 58 of oil sealing cap 5 and bearing support 1, seal ring 581 tightly is pressed against between the step surface 11 of the inner side step face 58 of oil sealing cap 5 and bearing support 1 by bolt 571, can make between oil sealing cap 5 and bearing support 1 and reach good sealing effect, the back-up ring 7 of prior art is between the outside (being exactly the left side of oil sealing cap 5 from Fig. 1) and bearing support 1 of oil sealing cap 5, does not compress by bolt, and sealing effect is naturally bad, by bolt 571, oil sealing cap 5 tightly is pressed against on bearing support 1, except making between oil sealing cap 5 and bearing support 1 good sealing effect, can also make oil sealing cap 5 meetings more stable, can prevent oil sealing cap 5 axial floats and radial displacement, thereby make the gap between oil sealing cap 5 and stuffing box gland 6 more stable, can effectively prevent lubricant oil from the clearance leakage between oil sealing cap 5 and stuffing box gland 6, namely better to guaranteeing the sealing effect between oil sealing cap 5 and stuffing box gland 6.
Repeatedly practise proof according to the claimant, the utility model makes turbosupercharger can be applied to harsher working environment, no matter motor is at full load or sub load, low-load even during towing astern work, there is not the situation of leakage of oil, greatly is better than the gas compressor end sealing configuration of existing turbosupercharger.
The utility model is not limited to above-mentioned concrete structure, so long as within the gas compressor end sealing configuration that oil sealing cap 5 is fixedly mounted on the turbosupercharger on bearing support 1 by bolt 571 just drops on the protection domain of invention.
Claims (10)
1. the gas compressor end sealing configuration of a turbosupercharger, it comprises bearing support (1), rotor (2), compressor impeller (3), thrust bearing (4), oil sealing cap (5) and stuffing box gland (6); Rotor (2) is main shaft; Stuffing box gland (6) is arranged on rotor (2) and goes up and be positioned between compressor impeller (3) and thrust bearing (4); Be provided with mounting hole (51) in the middle of oil sealing cap (5), oil sealing cap (5) is arranged on stuffing box gland (6) by mounting hole (51), be provided with seal ring (61) between oil sealing cap (5) and stuffing box gland (6), seal ring (61) is double seal ring; It is characterized in that: oil sealing cap (5) is provided with screw (57), and bearing support (1) is provided with corresponding screw with thrust bearing (4), and oil sealing cap (5) is fixedly mounted on bearing support (1) by bolt (571).
2. the gas compressor end sealing configuration of turbosupercharger according to claim 1, it is characterized in that: the periphery of described oil sealing cap (5) also is provided be used to the inner side step face (58) that presses seal ring, bearing support (1) is provided with the step surface (11) corresponding with the inner side step face (58) of oil sealing cap (5), between oil sealing cap (5) and bearing support (1), seal ring (581) is installed, seal ring (581) is between the step surface (11) of the inner side step face (58) of oil sealing cap (5) and bearing support (1).
3. the gas compressor end sealing configuration of turbosupercharger according to claim 1 and 2 is characterized in that: described oil sealing cap (5) is upper along circumferentially being evenly equipped with four screws (57).
4. the gas compressor end sealing configuration of turbosupercharger according to claim 1 and 2, it is characterized in that: the outer side surface (52) of described oil sealing cap (5) is concave surface, forms a toroidal cavity (53) between the outer side surface (52) of the oil sealing cap of spill (5) and the back side of compressor impeller (3).
5. the gas compressor end sealing configuration of turbosupercharger according to claim 3, it is characterized in that: the outer side surface (52) of described oil sealing cap (5) is concave surface, forms a toroidal cavity (53) between the outer side surface (52) of the oil sealing cap of spill (5) and the back side of compressor impeller (3).
6. the gas compressor end sealing configuration of turbosupercharger according to claim 4 is characterized in that: the cross section that forms a toroidal cavity (53) between the outer side surface (52) of the oil sealing cap of described spill (5) and the back side of compressor impeller (3) becomes Olive Shape.
7. the gas compressor end sealing configuration of turbosupercharger according to claim 1 and 2 is characterized in that: being close to mutually near the part of its mounting hole (51) back side with compressor impeller (3) of the outer side surface (52) of described oil sealing cap (5).
8. the gas compressor end sealing configuration of turbosupercharger according to claim 7 is characterized in that: the spacing (L) near the part of its mounting hole (51) and the gap at the back side of compressor impeller (3) of the outer side surface (52) of described next-door neighbour's oil sealing cap (5) mutually is 0.15～1.5 millimeter.
9. the gas compressor end sealing configuration of turbosupercharger according to claim 1 and 2, it is characterized in that: the inboard of described oil sealing cap (5) is provided with the annular drainage lumens (54) of indent, the upper position of the madial wall of the annular drainage lumens (54) of oil sealing cap (5) is provided with the shoe cream room (55) that can store lubricant oil, and the vertical step surface (62) that stuffing box gland (6) is provided with is just keeping off the lateral opening place at the shoe cream room (55) of oil sealing cap (5).
10. the gas compressor end sealing configuration of turbosupercharger according to claim 4, it is characterized in that: the inboard of described oil sealing cap (5) is provided with the annular drainage lumens (54) of indent, the upper position of the madial wall of the annular drainage lumens (54) of oil sealing cap (5) is provided with the shoe cream room (55) that can store lubricant oil, and the vertical step surface (62) that stuffing box gland (6) is provided with is just keeping off the lateral opening place at the shoe cream room (55) of oil sealing cap (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601197 CN202970812U (en) | 2012-11-15 | 2012-11-15 | Sealing structure at end of gas compressor of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601197 CN202970812U (en) | 2012-11-15 | 2012-11-15 | Sealing structure at end of gas compressor of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970812U true CN202970812U (en) | 2013-06-05 |
Family
ID=48511899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220601197 Withdrawn - After Issue CN202970812U (en) | 2012-11-15 | 2012-11-15 | Sealing structure at end of gas compressor of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970812U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926824B (en) * | 2012-11-15 | 2017-03-22 | 湖南天雁机械有限责任公司 | Gas compressor end sealing structure of turbocharger |
| CN108979723A (en) * | 2018-09-27 | 2018-12-11 | 雷旭文 | air engine and aerodynamic assembly |
| CN110410154A (en) * | 2019-07-30 | 2019-11-05 | 湖南天雁机械有限责任公司 | A kind of turbocharger thrust structure and its turbocharger |
-
2012
- 2012-11-15 CN CN 201220601197 patent/CN202970812U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926824B (en) * | 2012-11-15 | 2017-03-22 | 湖南天雁机械有限责任公司 | Gas compressor end sealing structure of turbocharger |
| CN108979723A (en) * | 2018-09-27 | 2018-12-11 | 雷旭文 | air engine and aerodynamic assembly |
| CN110410154A (en) * | 2019-07-30 | 2019-11-05 | 湖南天雁机械有限责任公司 | A kind of turbocharger thrust structure and its turbocharger |
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