CN203770074U - Brake pump piston ring of car air compressor - Google Patents

Brake pump piston ring of car air compressor Download PDF

Info

Publication number
CN203770074U
CN203770074U CN201420042927.7U CN201420042927U CN203770074U CN 203770074 U CN203770074 U CN 203770074U CN 201420042927 U CN201420042927 U CN 201420042927U CN 203770074 U CN203770074 U CN 203770074U
Authority
CN
China
Prior art keywords
ring
air compressor
piston
brake pump
piston ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420042927.7U
Other languages
Chinese (zh)
Inventor
胡怀纲
刘志华
吴立来
黄代凤
曹存军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANJING FEIYAN PISTON RING CO Ltd
Original Assignee
NANJING FEIYAN PISTON RING CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NANJING FEIYAN PISTON RING CO Ltd filed Critical NANJING FEIYAN PISTON RING CO Ltd
Priority to CN201420042927.7U priority Critical patent/CN203770074U/en
Application granted granted Critical
Publication of CN203770074U publication Critical patent/CN203770074U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a brake pump piston ring of a car air compressor. The brake pump piston ring comprises a first ring and a second ring. A first piston ring groove embedded into the first ring and a second piston ring groove embedded into the second ring are formed in the circumferential direction in the top of a piston from top to bottom, and the first ring and the second ring are opposite in torsion direction and form a piston ring set. According to the piston ring, the torsion directions are opposite so that the sealing effect can be improved, downward exhaust gas of the air compressor is reduced, pressure of a crank case of the air compressor is controlled, machine oil upward pumping is avoided, and the oil pumping failure rate of the air compressor is reduced by 45%.

Description

A kind of brake pump piston ring of vehicle air compressor
Technical field
The utility model relates to a kind of piston ring, is specifically related to a kind of brake pump piston ring.
Background technique
Existing vehicle air compressor piston ring adopts nose shape taper-face ring, and the operation surface of taper-face ring is tapered, and the conical surface upwards reduces gradually, and the bottom of nose shape taper-face ring is provided with a small-rabbet, and notch down.Piston ring in vehicle air compressor is compression ring, Main Function is the sealing that ensures piston and cylinder wall, wherein, the sealing effect of first ring accounts for 80 ~ 90% of piston ring integral sealing effect, conventionally the first ring in vehicle air compressor is positive distortion external nose conical ring, be unfavorable for air compressor envelope gas, under air compressor, exhaust is larger.
Model utility content
Model utility object: the purpose of this utility model is for the deficiencies in the prior art, and a kind of brake pump piston ring of vehicle air compressor is provided, for solving the heavy problem of exhaust under air compressor.
Technological scheme: the utility model provides a kind of brake pump piston ring of vehicle air compressor, comprise first ring and second ring, from piston head, from top to bottom along circumferentially having the first piston annular groove that embeds first ring and the second-ring groove that embeds second ring, described first ring and second ring are the contrary piston ring of distortion; No matter on can effectively controlling in the sideshake of machinery oil between piston ring and piston ring groove, alter, be in piston stroking upward and descending process, and the contrary bipassage ring of distortion all forms linear sealing face with annular groove end face.
Further, described first ring is reverse torsion ring, and described second ring is positive twist type ring; In the time of up-stroke of piston, the outside, lower end surface of reverse torsion ring contacts with annular groove lower end surface, and inner side, positive twist type ring lower end surface contacts with piston ring groove lower end surface, thereby forms the oily passage of altering of sealing; On the other hand, in the time of descent of piston, inner side, reverse torsion ring upper-end surface contacts with annular groove upper-end surface, end in contact on outside, positive twist type ring upper-end surface and annular groove, and shape airtight passage reduces alters oil.
Preferably, the end-gaps of described first ring and second ring is 0.05 ~ 0.25mm, and this small closed end can dwindle the passage of altering that lubricates in brake pump crankcase effectively, alters oil thereby reduce brake pump.
Further, described first ring and second ring are taper-face ring, and taper-face ring not only has effect of the sealing gas of rectangular ring, also play the effect that increases frizing simultaneously.
Preferably, the conical surface angle of the second ring of described first ring is 2 ° ± 30 ', can increase the contact angle between piston ring and cylinder sleeve, increase the frizing ability of piston ring.
Beneficial effect: the utility model carrys out lift-off seal effect by the contrary direction of twist of piston ring, reduces the lower exhaust of air compressor, controls the air pressure in air compressor crankcase, prevents from altering on machine oil, makes air compressor alter oily failure of removal rate and declines 45%.
Brief description of the drawings
Fig. 1 is piston ring and the annular groove situation schematic diagram when up;
Fig. 2 is piston ring and the annular groove situation schematic diagram when descending;
Fig. 3 is the structural representation of piston ring;
Fig. 4 is the sectional drawing of first ring along A-A face in Fig. 3;
Fig. 5 is the sectional drawing of second ring along A-A face in Fig. 3
Embodiment
Below technical solutions of the utility model are elaborated, but protection domain of the present utility model is not limited to described embodiment.
embodiment:a kind of brake pump piston ring of vehicle air compressor, comprise first ring 1 and second ring 2, embed the first piston annular groove 4 of first ring 1 and the second-ring groove 5 of embedding second ring 2 along circumferentially having from top to bottom from piston 3 tops, the taper-face ring that first ring 1 is anti-twist, the taper-face ring that second ring 2 is positive distortion, the end-gaps S of bipassage ring is 0.10mm, as shown in Figure 3; The conical surface angle of first ring 1 is 2 ° ± 30 ', as shown in Figure 4; The conical surface angle of second ring 2 is 2 ° ± 30 ', as shown in Figure 5; In the time of piston 3 up stroke, as shown in Figure 1, the positive reverse torsion ring of working state produces small distortion angle α under distortion action, wherein, the anti-twist angle α that reverse torsion ring produces makes the outside, lower end surface of reverse torsion ring contact with annular groove lower end surface, the anti-twist angle α that positive twist type ring produces makes inner side, positive twist type ring lower end surface contact with piston ring groove lower end surface, thereby forms the oily passage of altering of sealing; In like manner, in the time that piston 3 is descending, as shown in Figure 2, inner side, reverse torsion ring upper-end surface contacts with annular groove upper-end surface, end in contact on outside, positive twist type ring upper-end surface and annular groove, channels in crankcase under the gas at shape airtight passage minimizing piston 3 tops, thereby reduces brake pump in the time of negative inspiratory pressure stroke, because the anticyclonic lubricant mist suck-back in crankcase enters piston head, and then discharge to form with gas and alter oil.
As mentioned above, although represented and explained the utility model with reference to specific preferred embodiment, it shall not be construed as the restriction to the utility model self.Not departing under the spirit and scope prerequisite of the present utility model of claims definition, can make in the form and details various variations to it.

Claims (5)

1. the brake pump piston ring of a vehicle air compressor, it is characterized in that: comprise first ring and second ring, from piston head, from top to bottom along circumferentially having the first piston annular groove that embeds first ring and the second-ring groove that embeds second ring, described first ring and second ring are the contrary piston ring group of distortion.
2. the brake pump piston ring of vehicle air compressor according to claim 1, is characterized in that: described first ring is reverse torsion ring, and described second ring is positive twist type ring.
3. the brake pump piston ring of vehicle air compressor according to claim 1, is characterized in that: the end-gaps of described first ring and second ring is 0.05 ~ 0.25mm.
4. the brake pump piston ring of vehicle air compressor according to claim 1, is characterized in that: described first ring and second ring are taper-face ring.
5. the brake pump piston ring of vehicle air compressor according to claim 4, is characterized in that: the conical surface angle of described first ring and second ring is 2 ° ± 30 '.
CN201420042927.7U 2014-01-23 2014-01-23 Brake pump piston ring of car air compressor Active CN203770074U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420042927.7U CN203770074U (en) 2014-01-23 2014-01-23 Brake pump piston ring of car air compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420042927.7U CN203770074U (en) 2014-01-23 2014-01-23 Brake pump piston ring of car air compressor

Publications (1)

Publication Number Publication Date
CN203770074U true CN203770074U (en) 2014-08-13

Family

ID=51287271

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420042927.7U Active CN203770074U (en) 2014-01-23 2014-01-23 Brake pump piston ring of car air compressor

Country Status (1)

Country Link
CN (1) CN203770074U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790803A (en) * 2014-01-23 2014-05-14 南京飞燕活塞环股份有限公司 Brake pump piston ring of car air compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790803A (en) * 2014-01-23 2014-05-14 南京飞燕活塞环股份有限公司 Brake pump piston ring of car air compressor

Similar Documents

Publication Publication Date Title
CN203770074U (en) Brake pump piston ring of car air compressor
EP2626598A3 (en) Engines and pistons for them
CN104500954B (en) Pneumatic high-voltage butter oiling machine
CN103790803A (en) Brake pump piston ring of car air compressor
CN204716532U (en) Plunger hand mud pumping cylinder
CN205937038U (en) Piston ring lives with piston ring
CN202926549U (en) Oil-free vertical type vacuum pump
CN207080444U (en) A kind of novel piston and guide sleeve structure
CN104314792A (en) Compressor for supplying clean gas
CN204804967U (en) A piston for on engine
CN205244010U (en) No piston hydro -cylinder
CN204153136U (en) Oil-filling type packing seal assembly
CN204082367U (en) A kind of low oil consumption piston ring oil ring
CN206592222U (en) A kind of use for diesel engine tracheae and sealing ring of cylinder cover
CN204458481U (en) A kind of clear water centrifugal pump internal pressure type sealing configuration
CN202882832U (en) Lubrication type double-sealing packing box
CN203686144U (en) Oil mist sealing device of single-column quenching hydraulic machine
CN201916278U (en) Air cylinder
CN204716500U (en) Piston and piston-ring packing
CN203145883U (en) Polished rod sealing device
CN205908555U (en) Prevent changeing piston rod packing piece
CN202867321U (en) High-pressure water pump sealing filler
CN206144749U (en) Doublestage direction oil -free air compressor piston
CN202176298U (en) Sealer capable of lubricating polish rod of pumping well
CN203717302U (en) Anti-airlock oil well pump

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant