CN2222327Y - Piston assembly for refrigerating machine - Google Patents
Piston assembly for refrigerating machine Download PDFInfo
- Publication number
- CN2222327Y CN2222327Y CN 95230929 CN95230929U CN2222327Y CN 2222327 Y CN2222327 Y CN 2222327Y CN 95230929 CN95230929 CN 95230929 CN 95230929 U CN95230929 U CN 95230929U CN 2222327 Y CN2222327 Y CN 2222327Y
- Authority
- CN
- China
- Prior art keywords
- piston body
- oil
- oil ring
- ring
- piston assembly
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model provides a piston assembly for refrigerating machine, composed of a piston body 1, an oil ring in an oil ring slot arranged on the piston body 1 and a gas ring in a gas ring slot. The piston body 1 is provided with a through hole 2 which is communicated with the inner cavity of the piston body 1 and the oil ring slot. The utility model is characterized in that the gas ring is provided with a periphery arranged breach, and the area of the through hole 2 is larger than the sixty percent of the side surface of the oil ring slot. The utility model has the advantages of lube oil saving, high refrigerating efficiency, etc.
Description
The utility model relates to a kind of piston assembly, particularly a kind of refrigerator piston assembly.
In the prior art, the refrigerator piston body is provided with oil ring groove, and oil ring places in the oil ring groove, is provided with equally distributed through hole on the circumference of the side of oil ring groove, and the area of through hole is less than 6% of the oil ring groove side surface area.Also be provided with compression on the piston body, compression ring places in the compression, and the section of compression ring is complete rectangle, and the refrigerator piston assembly of this structure has following shortcoming; The lubrication oil consumption that is used between piston body and the cylinder sleeve is big, but 2 kilograms of eight hours oil consumptions of work because the big portion of lubricating oil that is consumed enters the piston body top, promptly sneak in the freezing liquid, enter the circulatory system with freezing liquid, have a strong impact on freezing efficiency.
The purpose of this utility model provides a kind of lubricating oil that prevents and enters the refrigerator piston assembly in the circulatory system.
Technical solution of the present utility model is: a kind of refrigerator piston assembly, by piston body 1, place oil ring in the oil ring groove on the piston body 1 and the compression ring in the compression to form, piston body 1 is provided with the through hole 2 that is communicated with piston body 1 inner chamber and oil ring groove, it is characterized in that: the breach that has a circumference to be provided with on the described compression ring, the area of described through hole 2 is greater than 6 percent of the oil ring groove side surface.
Described compression ring is at least two, and described breach is located on the interior circle at angle place and below compression ring on the cylindrical of top compression ring the angle respectively and locates.
Described breach section is a triangle or fan-shaped.
The utility model compared with prior art has and prevents that lubricating oil from entering the advantage of top land, overcome lubricating oil and sneaked into the shortcoming of the circulatory system, thereby guaranteed the quality of freezing liquid, improved freezing efficiency, also greatly reduce the consumption of the lubricating oil that dries up simultaneously, played the effect that reduces production costs.
Below in conjunction with the drawings and the specific embodiments the utility model is further described:
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is a M place enlarged drawing shown in Figure 1;
Fig. 3 is that K shown in Figure 2 is to view.
As shown in the figure: 1 is piston body, and circumference is provided with oil ring groove and two compressions on it, and oil ring groove is positioned at the compression below.Even distribution through hole 2 on the circumference of the side of oil ring groove, promptly through hole 2 is communicated with the inner chamber of oil ring groove with piston body 1, and the cumulative area of through hole 2 accounts for 20% of oil ring groove side circumferential area.Oil ring is by last ring 5, encircle 7 and be clamped in the wave ring 6 of going up ring 5, encircling between 7 down and form (referring to Fig. 3) down.Compression ring 3 and 4 places respectively in the compression, and compression ring 3,4 is provided with the breach that circumference is provided with, and the section configuration of its breach is a rectangle, also can be for fan-shaped, and promptly breach is rectangular-shaped or circular-arc.The breach of top compression ring is located at place, angle on the cylindrical, and circle was gone up place, angle (referring to Fig. 2) in the breach of below compression ring was located at.
Claims (3)
1, a kind of refrigerator piston assembly, by piston body [1], place oil ring in the oil ring groove on the piston body [1] and the compression ring in the compression to form, piston body [1] is provided with the through hole [2] that is communicated with piston body [1] inner chamber and oil ring groove, it is characterized in that: the breach that has a circumference to be provided with on the described compression ring, the area of described through hole [2] is greater than 6 percent of oil ring groove side surface.
2, refrigerator piston assembly according to claim 1, it is characterized in that: described compression ring is at least two, and described breach is located on the interior circle at angle place and below compression ring on the cylindrical of top compression ring the angle respectively and locates.
3, refrigerator piston assembly according to claim 1 and 2 is characterized in that: described breach section is a triangle or fan-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230929 CN2222327Y (en) | 1995-04-21 | 1995-04-21 | Piston assembly for refrigerating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230929 CN2222327Y (en) | 1995-04-21 | 1995-04-21 | Piston assembly for refrigerating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2222327Y true CN2222327Y (en) | 1996-03-13 |
Family
ID=33875661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95230929 Expired - Fee Related CN2222327Y (en) | 1995-04-21 | 1995-04-21 | Piston assembly for refrigerating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2222327Y (en) |
-
1995
- 1995-04-21 CN CN 95230929 patent/CN2222327Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2222327Y (en) | Piston assembly for refrigerating machine | |
| CN2345518Y (en) | Concrete pump conveying cylinder piston sealing device | |
| CN215521084U (en) | Small hole step cast iron oil ring | |
| CN2381830Y (en) | Hydraulic nut | |
| CN208587237U (en) | A kind of engine camshaft bearing cap | |
| CN219599126U (en) | Grinding tool for DF7 type diesel locomotive oil sprayer body | |
| CN205841069U (en) | A kind of fuel injector fixed plate | |
| CN2290702Y (en) | Combination piston ring | |
| CN2171611Y (en) | Stamping trust bearing special for jet loom | |
| CN2213852Y (en) | Partition board respirator | |
| CN201461936U (en) | Circlip type piston ring | |
| CN2382541Y (en) | Dismantling tool for motorcycle magnetic motor | |
| CN2358247Y (en) | Air compressor | |
| CN2405039Y (en) | Piston assembly for mud pump | |
| CN2835607Y (en) | Diesel engine cylinder liner | |
| CN214686333U (en) | Piston ring installation device | |
| CN2226155Y (en) | Multi-segment combined piston ring for internal combustion engine | |
| CN2231325Y (en) | Reciprocating piston air compressor | |
| CN2654884Y (en) | Special cylinder jacket | |
| CN2656695Y (en) | Hydraulic nut | |
| CN2216166Y (en) | Hydraulic cylinder, air cylinder with non-circular pressure cavity, or its ring | |
| CN2241233Y (en) | Piston pin for diesel engine | |
| CN2200054Y (en) | Evaporating type water tank for single-cylinder diesel engine | |
| CN2447527Y (en) | New pistol | |
| CN2556358Y (en) | Internal gland of packing box for pumping unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |