CN106930928A - Cylinder cover cushion - Google Patents
Cylinder cover cushion Download PDFInfo
- Publication number
- CN106930928A CN106930928A CN201511029975.8A CN201511029975A CN106930928A CN 106930928 A CN106930928 A CN 106930928A CN 201511029975 A CN201511029975 A CN 201511029975A CN 106930928 A CN106930928 A CN 106930928A
- Authority
- CN
- China
- Prior art keywords
- limiting section
- cylinder cover
- cutout unit
- cover cushion
- valve plate
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
Abstract
It is an object of the invention to provide a logical cylinder cover cushion, it can improve exhaust efficiency.It is overall in the form of sheets, wherein, at least inner seal ring and outer seal ring are used for the dividing plate of blanket gas cylinder cap；Radially extend for the several limiting sections spacing to exhaust valve plate, several limiting sections connect the inner seal ring；The limiting section also includes cutout unit, and the cutout unit runs through the limiting section, in the uncovered area of the exhaust valve plate opened, for discharging the current of air-flow.
Description
Technical field
The present invention relates to the cylinder cover cushion of compressor.
Background technology
In compressor operating, pressure high temperature hot gas wash exhaust valve plate open, and the open angle of exhaust valve plate is by cylinder cap
The exhaust limiting section of pad is limited, with prevent aperture it is excessive cause exhaust valve plate to be deformed, fracture damage.
The Chinese publication of the entitled compressors of Publication No. CN1178292A, discloses a kind of cylinder cover cushion, should
The cylinder cover cushion of patent is used between the valve plate of compressor and cylinder head, comprising in the annular between suction muffler and discharge chamber
Sealing, the retainer of limitation exhaust valve plate open position, annular outer seal, annular inner seal have jut from
Annular inner seal extends radially outwardly.
When exhaust valve plate overturns and opens outwardly, retainer is used to prevent exhaust valve plate open angle excessive and damage,
Therefore its effect is protection exhaust valve plate.But retainer hinders air-flow and is flowed towards radial outside simultaneously, influence exhaust
Efficiency.
The content of the invention
It is an object of the invention to provide a logical cylinder cover cushion, it can improve exhaust efficiency.
A kind of cylinder cover cushion, integrally in the form of sheets, wherein, at least inner seal ring and outer seal ring are used for blanket gas cylinder cap
Dividing plate；Radially extend for the several limiting sections spacing to exhaust valve plate, several limiting section connections are described interior
Sealing ring；The limiting section also includes cutout unit, and the cutout unit runs through the limiting section, in the row for opening
The uncovered area of air valve plate, for discharging the current of air-flow.
In a preferred embodiment, the limiting section include the rise portion that is connected with the inner seal ring and with institute
The falling portion of outer seal ring connection is stated, the cutout unit is located at the end in the rise portion and/or the region in falling portion,
For discharging the current of air-flow.
In a preferred embodiment, the cutout unit is the otch of the limiting section both sides at least side.
In a preferred embodiment, the cutout unit is the through hole at the limiting section center.
In a preferred embodiment, the rise portion is connected with the falling portion, the rise portion and the cylinder cap
The plane that pad body is limited is in the angle being gradually opened, and it is described flat that the falling portion then returns the limiting section turnover
Face.
Cutout unit eliminates the portion of material of influence exhaust airstream flowing, it is allowed to which air-flow is improved from the discharge of excision position
Exhaust efficiency, meanwhile, the area that air-flow clashes into exhaust limiting section reduces, and also improves the stabilization of exhaust limiting section
Property.
Brief description of the drawings
The above and other features of the present invention, property and advantage will pass through with reference to the accompanying drawings and examples
Describe and become readily apparent from, wherein：
Figure 1A is the partial sectional view of compressor, and exhaust valve plate therein is not switched on；
Figure 1B is the partial sectional view of compressor, and exhaust valve plate therein has been opened；
Fig. 2 is the top view of compressor in Figure 1A；
Fig. 3 is the front view of compressor in the embodiment of the present invention 1；
Fig. 4 is the axial view of cylinder head；
Fig. 5 is the axial view of cylinder cover cushion；
Fig. 6 be Fig. 5 in S-S to sectional view；
Fig. 7 is the axial view of cylinder cover cushion in the embodiment of the present invention 2；
Fig. 8 be Fig. 7 in S-S to sectional view；
The axial view of cylinder cover cushion in Fig. 9 embodiment of the present invention 3；
Figure 10 be Fig. 9 in S-S to sectional view；
The axial view of cylinder cover cushion in Figure 11 embodiment of the present invention 4；
Figure 12 be Figure 11 in S-S to sectional view.
Specific embodiment
With reference to specific embodiments and the drawings, the invention will be further described, elaborates in the following description more
Many details are in order to fully understand the present invention, but the present invention obviously can be with various other described different from this
Mode is implemented, and those skilled in the art can be in the case of without prejudice to intension of the present invention according to practical situations
Make similar popularization, deduce, therefore should not be limited the scope of the invention with the content of this specific embodiment.
Figure 1A, Figure 1B are respectively the partial sectional view of compressor, including two kinds of shapes are closed and opened to exhaust valve plate
State, Fig. 2 is the top view of Figure 1A.As shown in Figure 1A, Figure 1B, Fig. 2, the gases at high pressure in cylinder are pushed open
Exhaust valve plate, exhaust airstream Pd is drastically towards effusion around valve opening, but due to the stop of retainer, air-flow cannot
Discharge is directed out, can only be discharged by the both sides of retainer, exhaust efficiency is low, the outer end of retainer is subject to air-flow
Impact is larger.
Embodiment described later can solve such problem, it should be noted that the accompanying drawing of aftermentioned embodiment is only made
It is example, it is drawn according to the condition of equal proportion, and should not be actually subjected in this, as to the present invention
The protection domain asked is construed as limiting.
Embodiment 1
As shown in figure 3, multiple pistons 18 of compressor are attached separately in each cylinder-bore 21, each piston 18 exists
Moved back and forth in cylinder-bore 21.Piston 18 towards each casing bore 21 top and bottom move when, respectively will refrigeration
Gas sucks cylinder-bore 21 from suction muffler 12, and drains into discharge chamber 11 from cylinder-bore 21, so as to complete to gas
The compression of body.Suction muffler 12 and discharge chamber 11 are arranged in cylinder head 10, are mutually separated by by partition component described later
Open.
Plate member is that compressed gas cylinder holes 21 sucks gas and discharges the controlling organization of gas, including valve plate 22, suction
Air valve plate 23, exhaust valve plate 24.Valve plate 22 is provided with multiple suction holes 25 and steam vent 26, suction valve chip
The 23 cylinder-bore sides for being located at valve plate 22, when piston 18 is up, suction valve chip 23 opens suction hole, makes cylinder
Hole 21 sucks gas；Gas when piston 18 is descending in compressed gas cylinder holes 21, suction valve chip 23 is closed and inhaled
Stomata, while open the exhaust valve plate 24 for being located at the opposition side of suction valve chip 23 through the gases at high pressure of overcompression,
Discharge the gas in cylinder-bore 21.As shown in fig. 6, each exhaust valve plate 24 includes root 24A and end
24B.The root 24A of multiple exhaust valve plates 24 is combined as a whole, and is fixedly connected on cylinder body 1 and cylinder head 10
Between, multiple end 24B extend radially outwardly.
Cylinder cover cushion 30 is overall in the form of sheets, is located between valve plate 22 and cylinder cap 10, for valve plate 22 and cylinder
The sealing of lid 10.According to the setting of suction muffler 12 and discharge chamber 11 in cylinder head 10, cylinder cover cushion 30 sets
Sealing ring is equipped with, the dividing plate cooperation for isolating suction muffler 12, discharge chamber 11 with cylinder head 10 prevents suction muffler
Leaked mutually between 12 and discharge chamber 11.
As shown in figure 4, the from-inner-to-outer of cylinder head 10 of the present embodiment successively include the first dividing plate 10A, second every
Plate 10B and the 3rd dividing plate 10C.(Fig. 6 is the S-S sectional views of Fig. 5), cylinder cap as shown in Figure 5, Figure 6
Pad 30 is arranged in correspondence with the first sealing ring 30A, the second sealing ring 30B and the 3rd sealing ring 30C.First sealing
Several limiting section 30D are provided between ring 30A and the second sealing ring 30B, each limiting section 30D radially prolongs
Stretch, several limiting section 30D connections first sealing ring 30A and the second sealing ring 30B.Limiting section 30D includes
The rise portion 30D1 being connected with the first sealing ring 30A, and the falling portion being connected with the second sealing ring 30B
30D2, rise portion 30D1 are connected with falling portion 30D2, and rise portion 30D1 is in one with the plane of cylinder cover cushion 30
The angle being gradually opened, falling portion 30D1 is then to turn down limiting section 30D to return to plane.
Limiting section opens up cutout unit, and cutout unit is one (square, circular, long positioned at rise portion end vias 30E
The shapes such as shape), through hole 30E is in the radially outer position of the exhaust valve plate 24 opened.When gases at high pressure are pushed open
Exhaust valve plate 24, when being discharged from the steam vent of valve plate 22, air-flow Pd respectively to the both sides P1 of limiting section,
P2 and top P3 tri- is discharged simultaneously from direction, rather than as prior art, air-flow and rise portion 30D1
End reflects from side discharge again after mutually clashing into.The process of air-flow sinuous movement is reduced, increases leaving area, carried
Exhaust efficiency high.
Embodiment 2
The present embodiment continues to use the element numbers and partial content of previous embodiment, wherein adopt being denoted by the same reference numerals
Identical or approximate element, and optionally eliminate the explanation of constructed content.Saying on clipped
Bright to can refer to previous embodiment, it is no longer repeated for the present embodiment.
As shown in Figure 7, Figure 8, the difference with embodiment 1 is that cutout unit 30F is formed at falling portion.With
Similarly, high pressure draught Pd is discharged embodiment 1 simultaneously to limiting section both sides P1, P2 and outside P 4 simultaneously.
Embodiment 3
The present embodiment continues to use the element numbers and partial content of previous embodiment, wherein adopt being denoted by the same reference numerals
Identical or approximate element, and optionally eliminate the explanation of constructed content.Saying on clipped
Bright to can refer to previous embodiment, it is no longer repeated for the present embodiment.
As shown in Figure 9, Figure 10, the difference with embodiment 1 is that the through hole 30G of cutout unit is across rise portion
With falling portion so that high pressure draught Pd can be simultaneously from limiting section both sides P1, P2, top P3, P4 and outside
Discharge simultaneously.
Embodiment 4
The present embodiment continues to use the element numbers and partial content of previous embodiment, wherein adopt being denoted by the same reference numerals
Identical or approximate element, and optionally eliminate the explanation of constructed content.Saying on clipped
Bright to can refer to previous embodiment, it is no longer repeated for the present embodiment.
As shown in Figure 11, Figure 12, the difference with embodiment 1 is that cutout unit is formed at the both sides in falling portion
Otch 30H.The high pressure draught Pd of the present embodiment can from limiting section both sides P1, P2 and oblique outside P 5,
P6 is discharged simultaneously.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, can make possible variation and modification.Therefore,
Every content without departing from technical solution of the present invention, according to appointing that technical spirit of the invention is made to above example
What modification, equivalent variations and modification, each falls within the protection domain that the claims in the present invention are defined.
Claims (5)
1. cylinder cover cushion, it is overall in the form of sheets, including：
At least inner seal ring and outer seal ring, for the dividing plate of blanket gas cylinder cap；
For the several limiting sections spacing to exhaust valve plate, radially extend, several limiting section connections are described interior
Sealing ring；
Characterized in that, the limiting section also includes cutout unit, the cutout unit runs through the limiting section, is opening
The exhaust valve plate uncovered area, for discharging the current of air-flow.
2. cylinder cover cushion as claimed in claim 1, it is characterised in that the limiting section includes and the interior sealing
The rise portion of ring connection and the falling portion being connected with the outer seal ring, the cutout unit are located at the rise portion
End and/or falling portion region, for discharging the current of air-flow.
3. cylinder cover cushion as claimed in claim 1, it is characterised in that the cutout unit is the limiting section both sides
At least otch of side.
4. cylinder cover cushion as claimed in claim 1, it is characterised in that the cutout unit is the limiting section center
Through hole.
5. cylinder cover cushion as claimed in claim 2, it is characterised in that the rise portion is connected with the falling portion
Connect, in the angle being gradually opened, the falling portion then makes the plane that the rise portion limits with the cylinder cap pad body
The limiting section turnover returns to the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511029975.8A CN106930928A (en) | 2015-12-31 | 2015-12-31 | Cylinder cover cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511029975.8A CN106930928A (en) | 2015-12-31 | 2015-12-31 | Cylinder cover cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106930928A true CN106930928A (en) | 2017-07-07 |
Family
ID=59443739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511029975.8A Pending CN106930928A (en) | 2015-12-31 | 2015-12-31 | Cylinder cover cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930928A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6093194A (en) * | 1983-10-26 | 1985-05-24 | Toshiba Corp | Seal type compressor |
| CN1598312A (en) * | 2003-09-17 | 2005-03-23 | Lg电子株式会社 | Discharge valve for compressor |
| CN102562539A (en) * | 2010-12-31 | 2012-07-11 | 上海三电贝洱汽车空调有限公司 | Cylinder head cushion |
| CN103835923A (en) * | 2013-12-11 | 2014-06-04 | 广州万宝集团压缩机有限公司 | Reciprocating compressor valve set structure with rapidly-opened-closed air discharge valve plate |
-
2015
- 2015-12-31 CN CN201511029975.8A patent/CN106930928A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6093194A (en) * | 1983-10-26 | 1985-05-24 | Toshiba Corp | Seal type compressor |
| CN1598312A (en) * | 2003-09-17 | 2005-03-23 | Lg电子株式会社 | Discharge valve for compressor |
| CN102562539A (en) * | 2010-12-31 | 2012-07-11 | 上海三电贝洱汽车空调有限公司 | Cylinder head cushion |
| CN103835923A (en) * | 2013-12-11 | 2014-06-04 | 广州万宝集团压缩机有限公司 | Reciprocating compressor valve set structure with rapidly-opened-closed air discharge valve plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |
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| RJ01 | Rejection of invention patent application after publication |