CN108692070A - Compressor - Google Patents
Compressor Download PDFInfo
- Publication number
- CN108692070A CN108692070A CN201810264896.2A CN201810264896A CN108692070A CN 108692070 A CN108692070 A CN 108692070A CN 201810264896 A CN201810264896 A CN 201810264896A CN 108692070 A CN108692070 A CN 108692070A
- Authority
- CN
- China
- Prior art keywords
- spool
- component
- guide
- refrigerant
- valve opening
- 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.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 138
- 238000000926 separation method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 19
- 230000000694 effects Effects 0.000 description 17
- 239000012530 fluid Substances 0.000 description 15
- 238000007789 sealing Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 9
- 239000011148 porous material Substances 0.000 description 8
- 108090000565 Capsid Proteins Proteins 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- -1 (in other words Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000013316 zoning Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
Abstract
The present invention provides a kind of compressor.The check-valves (40) of the compressor, which has, is formed with the valve base part (50) of valve opening (51), the spool (70) that valve opening (51) is opened and closed and retainer (14s).It is linked with guide's component (80) via linking part in spool (70), what the linking part made guide's component (80) is variable with the relative distance of spool (70).Guide's component (80) can be by valve opening (51), and guide's component (80) stretches out not from valve opening (51) to negative direction in the state that spool (70) is connected to retainer (14s).When refrigerant is to opposite direction flowing, guide's component (80) bears the pressure from refrigerant, to which guide's component (80) by valve opening (51) and pull spool (70) by towards making spool (70) be moved to negative direction in reverse direction, due to the differential pressure via the spool (70) contacted with valve base part (50) to which valve opening (51) is blocked.
Description
Technical field
The present invention relates to compressors.
Background technology
Refrigerant countercurrently has check-valves to compressor in order to prevent.Such as Japanese Unexamined Patent Publication 2003-232456 bulletins and day
This reality is opened as disclosed in clear 53-130519 bulletins, it is however generally that, check-valves has:Be formed with valve opening valve base part,
It valve opening is opened and closed by detaching/contacting relative to valve base part spool and exerts a force to valve closing direction to spool
Spring.
Invention content
In check-valves disclosed in the Japanese Unexamined Patent Publication 2003-232456 bulletins, the 1st spool is with the 2nd spool with mutual
The state being close to constitutes 1 spool, and spring is to valve closing direction to 1 spool force.1 spool overcomes the applied force of spring
And it is mobile to which valve opening is opened.In the bulletin, it is recorded as that spring can also be omitted according to implementation.
It is assumed that spring is omitted in the composition of Japanese Unexamined Patent Publication 2003-232456 bulletins, by just
The pressure of the fluid of direction flowing keeps 1 spool mobile and opens valve opening, makes 1 by the pressure of the fluid to opposite direction flowing
A spool is mobile to valve closing direction and closes valve opening.1 spool has scheduled weight, therefore makes 1 by the pressure of fluid
Steadily movement is not necessarily easy a spool as described above.
Pneumatic automatic valve (Japanese disclosed in Japanese Unexamined Patent Publication 53-130519 bulletins:Empty mood makees Move from Move man's caps used in ancient times), be
Fluid passage is opened and closed, and has 2 spools that can be moved independently of each other.The spool of one side is linked to piston,
And it is exerted a force by spring.When piston moves by the supply by forced air, the spool of a side overcome the applied force of spring to
Valve opening position moves.The spool of another party is moved by the fluid flowed in fluid passage to valve opening position.It is opened in fact Japanese
The spring for the spool force to one side is needed in the composition of clear 53-130519 bulletins.
In the case of having used spring as described above in the check valve, spool and valve seat are made by the applied force of spring
Component contact, to close valve opening.Spring as described above for closing valve opening, relative to when opening valve to opening
Valve direction movement spool and become resistance, it is thus possible to become fluid kinetic energy and/or fluid pressure generate loss
Reason.In the case where the such composition for not having the spring as described above for closing valve opening may be used, alternatively,
Can check-valves use the spring smaller than the spring of valve closing as described above such composition in the case of, can subtract
The resistance that spool is gently acted in valve opening can realize the miniaturization and/or lightweight of check-valves, can be set to smaller
Space can also assist in the miniaturization etc. of compressor entirety.
The present invention makes in view of actual conditions as described above, and its purpose is to provide one kind having following non-return
The compressor of valve, the check-valves have the composition that can be reduced the pressure loss and be minimized.
It is to have to allow refrigerant towards discharge chambe to positive direction flowing and limit above-mentioned system based on the compressor of the present invention
To the compressor of the check-valves of opposite direction flowing, above-mentioned check-valves has cryogen:Valve base part, the valve base part are formed with for upper
State refrigerant by valve opening;Spool, the spool are configured at the downstream side of the above-mentioned valve base part in above-mentioned positive direction, and opposite
Above-mentioned valve opening is opened and closed in above-mentioned valve base part separation/contact;And retainer (English:Stopper), the retainer
Relative to movement of the above-mentioned spool on the opening and closing direction that the opposite side of above-mentioned valve base part limits above-mentioned spool, in above-mentioned spool
Be linked with guide's component via linking part, the linking part make above-mentioned guide's component on the opening and closing direction of above-mentioned spool
Relative distance with above-mentioned spool is variable, and above-mentioned guide's component can be connected to above-mentioned by above-mentioned valve opening in above-mentioned spool
Above-mentioned guide's component is not stretched out from above-mentioned valve opening towards above-mentioned negative direction in the state of retainer, in above-mentioned refrigerant to above-mentioned anti-
When direction has been flowed, above-mentioned guide's component bears the pressure from above-mentioned refrigerant, to which above-mentioned guide's component is towards above-mentioned anti-
So that above-mentioned spool is moved to above-mentioned negative direction by above-mentioned valve opening and pull above-mentioned spool by direction, due to via with above-mentioned valve
The differential pressure for the above-mentioned spool that base member contacts is blocked to above-mentioned valve opening.
According to the check-valves of above-mentioned compressor, so as on the opening and closing direction of spool be variable with the relative distance of spool
Mode be linked with guide's component in spool, guide's component is moved by the pressure of fluid, though thus do not use spring or
Person uses smaller spring, can also reduce the pressure loss, be minimized.
The present invention above-mentioned and other purpose, feature, aspect and advantage by from it is associated with attached drawing and understanding
It is apparent from about the detailed description below the present invention.
Description of the drawings
Fig. 1 is the sectional view for showing the compressor 10 in embodiment 1.
Fig. 2 is the sectional view along the II-II lines in Fig. 1.
Fig. 3 is the sectional view along the III-III lines in Fig. 1.
Fig. 4 is enlargedly to show the sectional view in the region surrounded by IV lines in Fig. 2, and show the section of check-valves 40
Construction.
Fig. 5 is the cross-sectional perspective view of the state for the decomposition for showing check-valves 40 in embodiment 1.
Fig. 6 be show in the check-valves 40 of embodiment 1, the sectional view for the situation that refrigerant to positive direction flowing.
Fig. 7 be show in the check-valves 40 of embodiment 1, situation when refrigerant starts to opposite direction flowing is cutd open
View.
Fig. 8 be show in the check-valves 40 of embodiment 1, by the refrigerant to opposite direction flowing by guide component 80
The sectional view of the situation moved.
Fig. 9 be show in the check-valves 40 of embodiment 1, the sectional view for the situation that valve opening 51 is plugged by spool 70.
Figure 10 is the sectional view for showing the check-valves 40Z in comparative example.
Figure 11 is the cross-sectional perspective view for showing the check-valves 40A in the variation of embodiment 1.
Figure 12 is the sectional view for showing the check-valves 40B in embodiment 2.
Figure 13 is the situation shown in the check-valves 40B of embodiment 2, when refrigerant starts to opposite direction flowing
Sectional view.
Figure 14 is shown in the check-valves 40B of embodiment 2, guide's component by the refrigerant to opposite direction flowing
The sectional view of 80 situations moved.
Figure 15 be show in the check-valves 40B of embodiment 2, the section view for the situation that valve opening 51 is plugged by spool 70
Figure.
Figure 16 is the sectional view for showing the check-valves 40C in embodiment 3.
Figure 17 is the situation shown in the check-valves 40C of embodiment 3, when refrigerant starts to opposite direction flowing
Sectional view.
Figure 18 is shown in the check-valves 40C of embodiment 3, guide's component by the refrigerant to opposite direction flowing
The sectional view of 80 situations moved.
Figure 19 be show in the check-valves 40C of embodiment 3, by the refrigerant to opposite direction flowing by tablet 67 moves
The sectional view for the situation moved.
Figure 20 be show in the check-valves 40C of embodiment 3, the section view for the situation that valve opening 51 is plugged by spool 70
Figure.
Figure 21 is the sectional view for showing the check-valves 40D in embodiment 4.
Figure 22 be show in the check-valves 40D of embodiment 4, the section view for the situation that refrigerant to positive direction flowing
Figure.
Figure 23 be show in the check-valves 40D of embodiment 4, refrigerant to opposite direction flowing, by negative direction stream
Dynamic refrigerant and the sectional view of situation that guide's component 80 moves.
Figure 24 be show in the check-valves 40D of embodiment 4, the section view for the situation that valve opening 51 is plugged by spool 70
Figure.
Figure 25 is the sectional view for showing the check-valves 40E in embodiment 5.
Figure 26 be show in the check-valves 40E of embodiment 5, the section view for the situation that refrigerant to positive direction flowing
Figure.
Figure 27 be show in the check-valves 40E of embodiment 5, refrigerant to opposite direction flowing, by negative direction stream
Dynamic refrigerant and the sectional view of situation that guide's component 80 moves.
Figure 28 be show in the check-valves 40E of embodiment 5, the section view for the situation that valve opening 51 is plugged by spool 70
Figure.
Figure 29 is the sectional view for showing the check-valves 40F in embodiment 6.
Figure 30 be show in the check-valves 40F of embodiment 6, refrigerant to opposite direction flowing, by negative direction stream
Dynamic refrigerant and the sectional view of situation that guide's component 80 moves.
Figure 31 be show in the check-valves 40F of embodiment 6, the section view for the situation that valve opening 51 is plugged by spool 70
Figure.
Figure 32 is the sectional view for showing the check-valves 40G in embodiment 7.
Specific implementation mode
Embodiment is illustrated referring to the drawings.Same reference numeral is marked to the same part and corresponding part,
Sometimes repeat description is not repeated.
[Embodiment 1]
(compressor 10)
Fig. 1 is the sectional view for showing the compressor 10 in embodiment 1.Fig. 2 is the section view along the II-II lines in Fig. 1
Figure.Fig. 3 is the sectional view along the III-III lines in Fig. 1.Compressor 10 is for example equipped on vehicle and is filled for the air-conditioning of vehicle
It sets.Compressor 10 is blade (English:Vane) type, but the thought of following discloses can also be suitable for the (English that is vortexed:scroll)
Formula, ramp type and Roots's (English:Roots) the compressor of formula.
As shown in Figure 1, compressor 10 has shell 11 and check-valves 40.Shell 11 includes back casing 12 and procapsid 13
It is formed with suction chamber 20 as its inscape, and in inside.Back casing 12 has peripheral wall 12a (with reference to Fig. 2, Fig. 3).Procapsid
13 have cylinder body 14.14 integration of cylinder body is in procapsid 13 and is incorporated in back casing 12.Side plate 15 is engaged in cylinder body 14.
The inside of cylinder body 14 is provided with rotor 18.The peripheral surface of rotor 18 (Fig. 2, Fig. 3) is provided with multiple slot 18a.
It is accommodated with blade 19 with capable of passing in and out in the inside of slot 18a.The rotation of accompanying rotation axis 16, rotor 18 rotate.In rotor 18
Zoning goes out between peripheral surface, the inner wall of cylinder body 14, adjacent pair blade 19, procapsid 13 (Fig. 1) and side plate 15 (Fig. 1)
Discharge chambe 21.
In the peripheral surface of cylinder body 14, recess portion 14a is formed with (with reference to Fig. 2) with spreading the complete cycle in the circumferential direction of cylinder body 14.By
The inner peripheral surface of the recess portion 14a and back casing 12 that are set to cylinder body 14 form suction chamber 20.It is (recessed that suction chamber 20 is formed in cylinder body 14
Portion 14a) between back casing 12 (peripheral wall 12a).It is set to the inhalation port (Japanese of shell 11 (back casing 12):Suck ポ ー
ト) 22 form for refrigerant by refrigerant passage, and be communicated in suction chamber 20.Details is described later, but is sucking
The check-valves 40 prevented from suction chamber 20 to the adverse current of the refrigerant of inhalation port 22 is provided in port 22.
A pair of of the suction inlet 23 (Fig. 2) for being communicated in suction chamber 20 is formed in cylinder body 14.In suction stroke, discharge chambe 21
It is connected to via suction inlet 23 with suction chamber 20.It is also equipped with a pair of of recess portion 14b (Fig. 1, Fig. 3) in the peripheral surface of cylinder body 14.By
The inner peripheral surface zoning of recess portion 14b and back casing 12 (peripheral wall 12a) goes out to be discharged room 30.It is formed with discharge chambe 21 and row in cylinder body 14
Go out the outlet 31 (Fig. 3) of the connection of room 30.Outlet 31 is opened and closed by dump valve 32.In the system that discharge chambe 21 is compressed by
Refrigerant gas is pushed dump valve 32 open and is discharged to discharge room 30 via outlet 31.
As shown in Figure 1, the peripheral wall 12a in back casing 12 is formed with discharge port (Japanese:Discharge ポ ー ト) 34.It is being discharged
Port 34 is connected with the condenser in not shown external refrigerant circuit.In the rear side of back casing 12, gone out by 15 zoning of side plate
Discharging area 35 (Fig. 1).Oil eliminator 36 is equipped in discharging area 35.
It is formed with access 37 (Fig. 1, Fig. 3) in side plate 15 and oil eliminator 36.Access 37 makes discharge room 30 and oil
It is connected to from device 36.It is formed with oily supply passageway 15d (Fig. 1) in side plate 15.Oily supply passageway 15d will be stored in discharging area 35
The lubricating oil guide groove 18a (blade groove) of bottom.
(check-valves 40)
Referring to Figures 1 and 2, inhalation port 22 is arranged to penetrate through (cover (the English of back casing 12:Shell peripheral wall 12a)),
The outside of inhalation port 22 is continuously provided with the connector portions 24 of tubular.It is connected with sucking piping 25 in connector portions 24.Refrigerant (system
Refrigerant gas) evaporator that never illustrates flows into via sucking piping 25 in inhalation ports 22.Inhalation port 22 forms confession
Refrigerant by refrigerant passage.Check-valves 40 is provided in inhalation port 22.
Fig. 4 is enlargedly to show the sectional view in the region surrounded by IV lines in Fig. 2, and show the section of check-valves 40
Construction.Fig. 5 is the cross-sectional perspective view of the state for the decomposition for showing check-valves 40.As shown in Figure 4 and Figure 5, check-valves 40 has
Valve base part 50, spool 70 and retainer 14s.As described in detailed below, check-valves 40 is configured at compressor 10
Inside, and allow refrigerant towards discharge chambe 21 to positive direction flowing (with reference to Fig. 6), and refrigerant is limited to opposite direction flowing
(with reference to Fig. 9).
(valve base part 50)
The valve base part 50 of check-valves 40 has the shape of hollow and annular as a whole, and is set in inhalation port 22.
Valve base part 50 inside be formed with for refrigerant by valve opening 51.Valve base part 50 is in the inner wall for forming inhalation port 22
Component set in addition except the component (being in the present embodiment back casing 12) in face, and suction side is fixed on by indentation
The internal face of mouth 22.
(in other words, refrigerant is to positive direction stream for the end face in the downstream side in valve base part 50, valve opening 51 positive direction
The end face in the downstream side for being located at valve opening 51 in positive direction when moving) form valve seat 52.The valve seat 52 of present embodiment
Be formed as being located relative in the axially vertical plane of inhalation port 22.Valve seat 52 and the sealing surface 75 of aftermentioned spool 70 connect
It touches.
(spool 70)
The spool 70 of check-valves 40 is configured at the downstream side of the valve base part 50 in positive direction, and (in other words, refrigerant is to just
The downstream side of the valve base part 50 in positive direction when direction is flowed).Spool 70 is detached/is connect relative to valve base part 50
It touches and valve opening 51 is opened and closed.It is linked in spool 70 and is with the relative distance of spool 70 on the opening and closing direction of spool 70
Variable guide's component 80.In the present embodiment, spool 70 and guide's component 80 can move relative to one another, and be configured at suction
It enters the room in 20.
(guide's component 80)
Guide's component 80 has the 1st plate-like portion 81, axle portion 82 and bottom 83.1st plate-like portion 81 has substantially discoid
Shape.1st plate-like portion 81 is to be configured at when refrigerant to positive direction flowing, most connect among spool 70 and guide's component 80
The position of the position of nearly valve opening 51.The surface for the side that the valve base part 50 of 1st plate-like portion 81 is located at has the shape of dome shape
The central portion of shape, the surface is bloated towards the side that valve base part 50 is located at.In 1st plate-like portion 81 with 50 institute of valve base part
The surface 85 for the opposite side in side being located at is in flat face shape.
Axle portion 82 has columned shape.Axle portion 82 be provided for erecting in the 1st plate-like portion 81 with 51 (seat portion of valve opening
Part 50) part of the opposite side in side that is located at.Bottom 83 has the shape of plate, the outer peripheral edge of bottom 83 rounded
Shape.Axle portion 82 is set to the center portion of bottom 83.The surface for the side that valve base part 50 in bottom 83 is located at forms
1st engaging portion 84, and be in flat face shape.
In the present embodiment, axle portion 82 and bottom 83 are integrally made mutually by resin forming etc..In axle portion 82
It is inserted into the state of aftermentioned inserting hole 71, the 1st plate-like portion 81 is engaged in the top of axle portion 82.Axle portion 82 and the 1st plate-like portion
81 engage each other for example, by threaded stopper and/or bonding agent.In the present embodiment, the length of axle portion 82 is than aftermentioned
The thickness of 2nd plate-like portion 72 is long, and by this composition, spool 70 is with guide's component 80 with mutual on the opening and closing direction of spool 70
Relative distance be that variable mode is interconnected.That is, axle portion 82 and bottom 83 can be functioned as linking part.
It is not limited to above-mentioned composition, can also be, the 1st plate-like portion 81 integrally makes mutually with axle portion 82, in axle portion 82
It is inserted into the state of inserting hole 71, bottom 83 is engaged in the top of axle portion 82.It is not limited to this composition, can also be, the 1st plate
Portion 81, axle portion 82 and bottom 83 all make as mutual independent component.
Spool 70 has the 2nd plate-like portion 72 and cylindrical portion 73.2nd plate-like portion 72 has discoid shape, in the 2nd plate
The center in shape portion 72 is formed with inserting hole 71.The surface for the side that valve base part 50 in 2nd plate-like portion 72 is located at forms close
The surface of the opposite side in the side being located at valve base part 50 in the 75, the 2nd plate-like portion 72 of cover forms the 2nd engaging portion
74.Cylindrical portion 73 is set to the opposite side in the side being located at valve opening 51 (valve base part 50) in the 2nd plate-like portion 72
Outer peripheral portion, and there is hollow shape.
(retainer 14s)
As shown in Figure 4 and Figure 5, the opposite side of valve base part 50 is provided with retainer 14s relative to spool 70.This reality
The retainer 14s for applying mode is made of the part on the surface of cylinder body 14 (recess portion 14a).This of cylinder body 14 (recess portion 14a)
Be allocated as one of the inscape of check-valves 40 function but it is also possible to be, retainer 14s be except cylinder body 14 in addition
The component of setting.Retainer 14s limits the movement of spool 70 being opened and closed on direction by being connected to spool 70.It can also
It is that check-valves 40 is also equipped with cylindrical body 62 (guide portion).Cylindrical body 62 is fixed on the surface of cylinder body 14 (recess portion 14a).It is logical
The inner peripheral surface of cylindrical body 62 and the peripheral surface sliding contact of spool 70 are crossed, to which cylindrical body 62 is to movement (the detailed feelings of spool 70
Condition is described later) it guides.By cylindrical body 62 as arranging, to which spool 70 can be moved more stably.
With reference to Fig. 4, in the present embodiment, the diameter D81 of the diameter D51 of valve opening 51 than the outer peripheral edge of the 1st plate-like portion 81
It is greatly and smaller than the diameter D75 of sealing surface 75.Therefore, the 1st plate-like portion 81 of guide's component 80 can be configured at the interior of valve opening 51
Side and valve opening 51 can be passed through.On the other hand, the sealing surface 75 of spool 70 is by being connected to valve seat 52 so as to by valve opening
51 block.
(positive direction)
As shown in fig. 6, when refrigerant has been flowed to positive direction (arrow AR1), spool 70 and guide's component 80 are arrived
From the pressure of refrigerant to valve opening 51 is opened direction movement (in other words, spool 70 and guide's component 80 be configured at from
The position that valve opening 51 has left).In the state that refrigerant to positive direction flowing, in the 1st plate-like portion 81 and the 2nd plate-like portion 72
Between be formed with gap S.
The 1st engaging portion 84 that is formed in the bottom of guide's component 80 83, with spool 70 the 2nd plate-like portion 72 formed the
2 engaging portions 74 are separated from each other.The bottom 83 of guide's component 80 and the cylindrical portion 73 of spool 70 are connected to retainer 14s.In spool
70 are connected in the state of retainer 14s, and guide's component 80 is configured at 20 side of suction chamber relative to valve opening 51, and not from valve opening 51
It is stretched out towards negative direction.
Refrigerant from not shown evaporator is entered by valve opening 51 in suction chamber 20.1st plate-like portion 81
The spherical shape in surface positioned at 50 side of valve base part, thus refrigerant being capable of and the less pressure loss efficient from inhalation port 22
Ground enters in suction chamber 20.
(negative direction)
As shown in fig. 7, when refrigerant has been flowed to negative direction (arrow AR2), guide's component 80 bears to press from refrigerant
Power (Fluid pressure).The pressure is carried out as negative pressure in a manner of so that the side that guide's component 80 is located at towards valve opening 51 is moved
Effect.Refrigerant enters the gap S between the 1st plate-like portion 81 and the 2nd plate-like portion 72, to which guide's component 80 can be from refrigerant
Efficiently bear pressure.
As shown in figure 8, by the pressure of refrigerant, (in other words, refrigerant is to negative direction towards negative direction for guide's component 80
The downstream side on negative direction when flowing) it is mobile.With guide component 80 close to valve base part 50 (valve opening 51), valve opening 51
In refrigerant can by passage sections product because guide's component 80 it is close due to taper into.
Guide's component 80 enters in valve opening 51, to which guide's component 80 partly blocks valve opening 51.System in valve opening 51
Cryogen can by passage sections product further become smaller, the flow velocity liter of refrigerant to be flowed near guide's component 80
Height, and act on the power for the bigger for thering is guide's component 80 to be made downstream to move in guide's component 80.
It is contacted with the 2nd plate-like portion 72 of spool 70 by the bottom 83 of guide's component 80, to the 1st engaging portion 84 and the 2nd
Engaging portion 74 is mutually locking.It is mutually locking by the 1st engaging portion 84 and the 2nd engaging portion 74, thus with the shifting of guide's component 80
Power that is dynamic and producing is applied in spool 70 by locking position.
In the state that the 1st engaging portion 84 and the 2nd engaging portion 74 are mutually locking, spool 70 pulled by guide's component 80 and
It is mobile towards negative direction (downstream side on the negative direction when refrigerant to opposite direction flowing).In the present embodiment,
By cylindrical body 62, spool 70 can be more stably towards the close movement of valve base part 50.
As shown in figure 9, guide's component 80 is towards in reverse direction by valve opening 51, and pulling spool 70 makes spool 70 to anti-
It further moves in direction.In the state that the valve seat 52 of the sealing surface 75 of spool 70 and valve base part 50 contacts, due to via
The differential pressure of the spool 70 contacted with valve base part 50 is blocked to valve opening 51.In the state of valve closing, relative to sucking
Port 22 be located at the space of 20 side of suction chamber pressure ratio be located at relative to inhalation port 22 24 side of connector portions space pressure
It is high.Due to the differential pressure, spool 70 is persistently pressed against valve seat 52, and guide's component 80 (bottom 83) is persistently pressed against spool
70 the 2nd plate-like portion 72.
Valve opening 51 is blocked by spool 70, and the inserting hole 71 of spool 70 is blocked by the bottom 83 of guide's component 80.It can limit
Refrigerant processed is flowed towards negative direction (arrow AR3).
(comparative example)
Figure 10 is the sectional view for showing the check-valves 40Z in comparative example.Check-valves 40Z have valve base part 50, spool 70,
Shell 90 and spring 98.Shell 90 has cylindrical portion 91 and bottom 92.It is formed with intercommunicating pore 91H, cylindrical portion in cylindrical portion 91
91 upper end is connected to the lower end of valve base part 50.
Spool 70 and spring 98 are incorporated in the inside of shell 90, and spring 98 exerts a force to spool 70 on valve closing direction.It holds
By the spool 70 of the pressure from the refrigerant to positive direction flowing, overcomes the applied force of spring 98 and move.Spool 70 from
Valve seat 52 leaves to which valve opening 51 is opened, and refrigerant flows to the downstream side of suction chamber 20 etc. by valve opening 51 and intercommunicating pore 91H.
It is set to the spring 98 of check-valves 40Z, the system for making to flow to positive direction (arrow AR1) is not only acted in valve opening
Cryogen can by passage sections accumulate the direction of constriction, nor incur the pressure loss of refrigerant less.It is assumed that
In the case of spring 98 is omitted in the composition of check-valves 40Z, spool 70 is made by the pressure of the refrigerant to positive direction flowing
It is mobile and open valve opening 51, by the pressure of the refrigerant to opposite direction flowing make spool 70 to by the movement of valve closing direction by valve
Hole 51 is closed.Spool 70 has scheduled weight, therefore so that spool 70 is steadily moved as described above by the pressure of refrigerant
It is dynamic to be not necessarily easy.
(effect of embodiment 1 and effect)
In the check-valves 40Z of comparative example (Figure 10), spool 70 is made of 1 component.In contrast, in embodiment 1
Check-valves 40 in, it is variable elder generation with the relative distance of spool 70 to be linked on the opening and closing direction of spool 70 in spool 70
Lead component 80.
The side that constriction is accumulated as acted on the passage sections for making refrigerant be flowed in valve opening is not provided in check-valves 40
Spring as, the case where generating the pressure loss of refrigerant also can than comparative example in the case of it is few.With do not have (such as
Between spool 70 and cylinder body 14) setting as to valve closing direction to spool 70 exert a force as spring correspondingly, can gentlier more
Check-valves 40 is constituted smallly, can also assist in the whole miniaturization etc. of compressor 10.
If being conceived to from valve opening state to closed valve state and changing such action, saved in the check-valves 40Z of comparative example
In the case of having omited spring 98,1 spool 70 bear the pressure of refrigerant and is moved initially towards valve opening 51 such dynamic
Make and contacts such action with valve seat 52 to close valve opening 51.
On the other hand, in the check-valves 40 of embodiment 1, guide's component 80 bear the pressure of refrigerant and direction
Valve opening 51 starts mobile such action, and with the movement of guide's component 80, spool 70 moves, and spool 70 carries out in order to by valve opening
51 close and contact such action with valve seat 52.In the check-valves 40 of embodiment 1, can by the pressure of refrigerant from
And spool 70 and guide's component 80 are positioned against valve closing position from valve opening and are easily moved, even if can lead to if without using spring
It crosses the cooperation of guide's component 80 and spool 70 and steadily valve opening 51 is opened and closed.
In the check-valves 40 of embodiment 1, guide's component 80 without will valve opening 51 is practical closes such action, because
This can also be, guide's component 80 have can realize the pressure for bearing refrigerant and towards valve opening 51 start it is mobile as
The composition of the degree of function.Therefore, guide's component 80 is readily configured to light in the case of the spool 70 than comparative example, such as
Guide's component 80 can also be lighter than spool 70.
[The Bian Xingli ] of embodiment 1;
Figure 11 is the cross-sectional perspective view for showing the check-valves 40A in the variation of embodiment 1.Stopping in embodiment 1
It is different at aspect below from the check-valves 40A in the variation to return valve 40.
Check-valves 40A has shell 61.Shell 61 has cylindrical portion 62A and bottom 62B.It is formed with company in cylindrical portion 62A
Through-hole 62H, the upper end of cylindrical portion 62A are connected to the lower end of valve base part 50.The inner surface of bottom 62B constitutes retainer 14s.Root
According to this composition, the check-valves that valve base part 50, spool 70 and retainer 14s are assembled as 1 unit can be obtained
40A.By the peripheral surface sliding contact of the inner peripheral surface and spool 70 of cylindrical portion 62A, to which cylindrical portion 62A can be used as to valve
Guide portion that the movement of core 70 guides and function.
[Embodiment 2]
Figure 12 is the sectional view for showing the check-valves 40B in embodiment 2.Check-valves 40 in embodiment 1 and implementation
Check-valves 40B in mode 2 is in aspect below difference.
The spool 70 of check-valves 40B has sealing surface 75 and recess portion 76, and elder generation is linked with via linking part 64 in spool 70
Lead component 80.Guide's component 80 has spherical shape, but can also be with the shape of tabular (including discoid).Guide
The diameter of component 80 is smaller than the diameter of valve opening 51.Linking part 64 can be made of rope and/or chain.The material of linking part 64 can adopt
With resin or metal.Spool 70 and guide's component 80 interlink via linking part 64.Guide's component 80 is configured to compare spool
70 is light enough.
(positive direction)
As shown in figure 12, when refrigerant has been flowed to positive direction (arrow AR1), spool 70, linking part 64 and guide
Component 80 bears the pressure from refrigerant to move (in other words, spool 70, linking part 64 to the direction for opening valve opening 51
And guide's component 80 is configured at from the position that valve opening 51 has left).In the state that spool 70 is connected to retainer 14s, first
It leads component 80 and is configured at 20 side of suction chamber relative to valve opening 51, and do not stretched out from valve opening 51 towards negative direction.From not illustrating
Evaporator refrigerant pass through valve opening 51 enter suction chamber 20 in.
(negative direction)
As shown in figure 13, when refrigerant has been flowed to negative direction (arrow AR2), guide's component 80 bears to press from refrigerant
Power (Fluid pressure).The pressure as negative pressure and in a manner of making the side movement that guide's component 80 is located at towards valve opening 51 into
Row effect.
As shown in figure 14, by the pressure of refrigerant, (in other words, refrigerant is to negative side towards negative direction for guide's component 80
Downstream side on negative direction when flowing) it is mobile.With guide component 80 close to valve base part 50 (valve opening 51), valve opening
Refrigerant in 51 can by passage sections product because guide's component 80 it is close due to taper into.
Guide's component 80 enters in valve opening 51, to which guide's component 80 partly blocks valve opening 51.System in valve opening 51
Cryogen can by passage sections product further decrease, the flow velocity liter of refrigerant to be flowed near guide's component 80
Height, and act on the power for the bigger for thering is guide's component 80 to be made downstream to move in guide's component 80.With guide's component 80
The power for moving and producing be applied in spool 70 via linking part 64.Spool 70 is pulled by guide's component 80 (linking part 64)
And it is mobile towards negative direction (downstream side on negative direction when refrigerant to opposite direction flowing).
As shown in figure 15, guide's component 80 is towards in reverse direction by valve opening 51, and pull spool 70 make spool 70 to
Negative direction further moves.At this point, can also be so that cylindrical body 62 is configured in such a way that spool 70 is guided by cylindrical body 62
It is long, can also be as shown in figure 15, to be configured to, in spool 70 after cylindrical body 62 is left, the peripheral surface of spool 70 is by sucking
The inner surface of port 22 guides.Spool 70 is configured to always by either one in the inner surface of cylindrical body 62 and inhalation port 22
To guide.In the state that the valve seat 52 of the sealing surface 75 of spool 70 and valve base part 50 contacts, due to via with valve
The differential pressure for the spool 70 that base member 50 contacts is blocked to valve opening 51.Refrigerant can be limited towards negative direction (arrow AR3)
Flowing.
(effect of embodiment 2 and effect)
Also in the check-valves 40B of embodiment 2, on the opening and closing direction of spool 70 and spool is linked in spool 70
70 relative distance is the guide's component 80 that can be changed.Be not provided in check-valves 40B makes refrigerant institute as acted in valve opening
Spring as the direction of the passage sections product constriction of flowing, the case where generating the pressure loss of refrigerant, can also compare comparative example
In the case of it is few.It is arranged as exerted a force to valve closing direction to spool 70 with not having (such as between spool 70 and cylinder body 14)
Spring correspondingly, lighter can smaller constitute check-valves 40B, can also assist in the whole miniaturization etc. of compressor 10.
Also in the check-valves 40B of embodiment 2, guide's component 80 bear the pressure of refrigerant and towards valve opening 51
Start mobile such action, with the movement of guide's component 80, spool 70 moves, and spool 70 close valve opening 51
And contact such action with valve seat 52.Also in the check-valves 40B of embodiment 2, can by the pressure of refrigerant to
Spool 70 and guide's component 80 are positioned against valve closing position from valve opening and are easily moved, even if can pass through if without using spring
The cooperation of guide's component 80 and spool 70 and steadily valve opening 51 is opened and closed.
[Embodiment 3]
Figure 16 is the sectional view for showing the check-valves 40C in embodiment 3.Check-valves 40B in embodiment 2 and implementation
Check-valves 40C in mode 3 is in aspect below difference.
There is the linking part 64 of present embodiment the 1st connection element the 65, the 2nd to link element 66 and tablet 67.1st connection
Element 65 and the 2nd, which links element 66, to be made of rope and/or chain, and resin or metal may be used as material.Tablet 67 has
There is disk-shaped shape, and is set between the 1st connection connection element 66 of element 65 and the 2nd.The outer diameter of tablet 67 is than valve opening 51
Diameter it is small.
(positive direction)
As shown in figure 16, when refrigerant has been flowed to positive direction (arrow AR1), spool 70, linking part 64 and guide
Component 80 bears the pressure from refrigerant to move (in other words, spool 70, linking part 64 to the direction for opening valve opening 51
And guide's component 80 is configured at from the position that valve opening 51 has left).In the state that spool 70 is connected to retainer 14s, first
It leads component 80 and is configured at 20 side of suction chamber relative to valve opening 51, and do not stretched out from valve opening 51 towards negative direction.From not illustrating
Evaporator refrigerant by valve opening 51 enter suction chamber 20 in.
(negative direction)
As shown in figure 17, when refrigerant has been flowed to negative direction (arrow AR2), guide's component 80 bears to press from refrigerant
Power (Fluid pressure).The pressure as negative pressure and in a manner of making the side movement that guide's component 80 is located at towards valve opening 51 into
Row effect.
As shown in figure 18, by the pressure of refrigerant, (in other words, refrigerant is to negative side towards negative direction for guide's component 80
Downstream side on negative direction when flowing) it is mobile.With guide component 80 close to valve base part 50 (valve opening 51), valve opening
Refrigerant in 51 can by passage sections product because guide's component 80 it is close due to taper into.
With the power for moving and producing of guide's component 80 tablet 67 is applied in via the 1st connection element 65.It is flat
Plate 67 is pulled by guide's component 80 (the 1st connection element 65) and (this when refrigerant to opposite direction flowing is anti-towards negative direction
Downstream side on direction) it is mobile.With tablet 67 close to valve base part 50 (valve opening 51), the refrigerant in valve opening 51 can pass through
Passage sections product because guide's component 80 it is close due to taper into.
As shown in figure 19, with the power for moving and producing of tablet 67 spool is applied in via the 2nd connection element 66
70.Guide's component 80 is towards in reverse direction by valve opening 51, and pulling tablet 67 makes tablet 67 further be moved to negative direction.
Spool 70 is pulled by tablet 67 (the 2nd connection element 66) and (refrigerant to opposite direction flowing towards the downstream side on negative direction
When the negative direction on downstream side) it is mobile.
As shown in figure 20, in the state that the valve seat 52 of the sealing surface 75 of spool 70 and valve base part 50 contacts, due to
Via the differential pressure of the spool 70 contacted with valve base part 50 to which valve opening 51 is blocked.Refrigerant can be limited towards negative direction
(arrow AR3) flows.
(effect of embodiment 3 and effect)
Also in the check-valves 40C of embodiment 3, on the opening and closing direction of spool 70 and spool is linked in spool 70
70 relative distance is the guide's component 80 that can be changed.Be not provided in check-valves 40C makes refrigerant institute as acted in valve opening
Spring as the direction of the passage sections product constriction of flowing, the case where generating the pressure loss of refrigerant, can also compare comparative example
In the case of it is few.It is arranged as exerted a force to valve closing direction to spool 70 with not having (such as between spool 70 and cylinder body 14)
Spring correspondingly, lighter can smaller constitute check-valves 40C, can also assist in the whole miniaturization etc. of compressor 10.
In the check-valves 40C of embodiment 3, guide's component 80 bear the pressure of refrigerant and opened towards valve opening 51
Beginning mobile such action, then, tablet 67 bear the pressure of refrigerant and starts towards valve opening 51 dynamic as movement
Make, later, spool 70 carries out contacting such action with valve seat 52 to close valve opening 51.Also stopping in embodiment 3
It returns in valve 40C, can be positioned against valve closing position to spool 70 and guide's component 80 by the pressure of refrigerant from valve opening and hold
It changes places movement, even if can be steadily right by the cooperation of guide's component 80, tablet 67 and spool 70 if without using spring
Valve opening 51 is opened and closed.Linking part 64 is made of 3 components including tablet 67.Can also be, such as with guide's component
80, this mode for being sequentially overlapped of tablet 67 and spool 70 and constitute.
[Embodiment 4]
Figure 21 is the sectional view for showing the check-valves 40D in embodiment 4.Check-valves 40B in embodiment 2 and implementation
Check-valves 40D in mode 4 is in aspect below difference.
The spool 70 of check-valves 40D has sealing surface 75, and guide's component 80 is linked with via linking part 64 in spool 70.
Guide's component 80 has the shape of hollow taper (here, the circular cone opened for bottom surface side).Linking part 64 can by stick and/
Or tablet is constituted.Resin or metal may be used in the material of linking part 64.
(positive direction)
As shown in figure 22, when refrigerant has been flowed to positive direction (arrow AR1), guide's component 80 bears to come from refrigerant
Pressure, linking part 64 bears the pressing force from guide's component 80 and is downstream bent, spool 70, linking part 64 and first
It leads component 80 and bears the pressure from refrigerant as a whole to move (in other words, spool to the direction for opening valve opening 51
70, linking part 64 and guide's component 80 are configured at the position for opening valve opening 51 as a whole).It is connected in spool 70
In the state of retainer 14s, guide's component 80 is not stretched out from valve opening 51 towards negative direction.System from not shown evaporator
Cryogen is entered by valve opening 51 in suction chamber 20.
(negative direction)
As shown in figure 23, when refrigerant has been flowed to negative direction (arrow AR2), guide's component 80 bears to press from refrigerant
Power (Fluid pressure).The pressure so that guide's component 80 towards negative direction (when in other words, refrigerant to opposite direction flowing should
Downstream side on negative direction) mobile mode acted on.It is moved with guide's component 80, the refrigerant in valve opening 51 can lead to
The passage sections product crossed tapers into.Guide's component 80 travels further into valve opening 51, to guide's component 80 by valve opening 51 into
One step partly blocks.
Refrigerant in valve opening 51 can by passage sections product further decrease, near guide's component 80
The flow velocity of the refrigerant of flowing increases, and the bigger for having guide's component 80 to be made downstream to move is acted in guide's component 80
Power.With the power for moving and producing of guide's component 80 spool 70 is applied in via linking part 64.Spool 70 is by elder generation
Lead that component 80 (linking part 64) pulls and towards downstream side (negative direction when refrigerant to opposite direction flowing on negative direction
On downstream side) it is mobile.
As shown in figure 24, guide's component 80 is towards in reverse direction by valve opening 51, and pulls spool 70 and make spool 70
It is further moved to negative direction.In the state that the valve seat 52 of the sealing surface 75 of spool 70 and valve base part 50 contacts, due to
Via the differential pressure of the spool 70 contacted with valve base part 50 to which valve opening 51 is blocked.Refrigerant can be limited towards negative direction
(arrow AR3) flows.
(effect of embodiment 4 and effect)
Also in the check-valves 40D of embodiment 4, on the opening and closing direction of spool 70 and spool is linked in spool 70
70 relative distance is the guide's component 80 that can be changed.It is arranged such as to valve closing side with not having (such as between spool 70 and cylinder body 14)
Spring to as exerting a force to spool 70 correspondingly, lighter can smaller constitute check-valves 40D, can also assist in compression
The whole miniaturization etc. of machine 10.
[Embodiment 5]
Figure 25 is the sectional view for showing the check-valves 40E in embodiment 5.Check-valves 40B in embodiment 2 and implementation
Check-valves 40E in mode 5, guide's component 80 of check-valves 40E is made of tablet, the linking part of check-valves 40E 64 is by spiral shell
It is different to revolve this respect that spring is constituted.
(positive direction)
As shown in figure 26, when refrigerant has been flowed to positive direction (arrow AR1), guide's component 80 bears to come from refrigerant
Pressure, linking part 64 bears the pressing force from guide's component 80 and downstream shrinks, spool 70, linking part 64 and first
It leads component 80 and bears the pressure from refrigerant as a whole to move (in other words, spool to the direction for opening valve opening 51
70, linking part 64 and guide's component 80 are configured at the position for opening valve opening 51 as a whole).It is connected in spool 70
In the state of retainer 14s, guide's component 80 is not stretched out from valve opening 51 towards negative direction.System from not shown evaporator
Cryogen is entered by valve opening 51 in suction chamber 20.
(negative direction)
As shown in figure 27, when refrigerant has been flowed to negative direction (arrow AR2), guide's component 80 bears to press from refrigerant
Power (Fluid pressure).The pressure so that guide's component 80 towards negative direction (when in other words, refrigerant to opposite direction flowing should
Downstream side on negative direction) mobile mode acted on.It is moved with guide's component 80, the refrigerant in valve opening 51 can lead to
The passage sections product crossed is gradually reduced.Guide's component 80 enters in valve opening 51, to which guide's component 80 partly blocks up valve opening 51
Plug.
Refrigerant in valve opening 51 can by passage sections accumulate and reduce, to be flowed near guide's component 80
The flow velocity of refrigerant increases, and the bigger for having guide's component 80 to be made to move towards downstream side is acted in guide's component 80
Power.With the power for moving and producing of guide's component 80 spool 70 is applied in via linking part 64.Spool 70 is by guide
Component 80 (linking part 64) pull and towards negative direction (downstream side on negative direction when refrigerant to opposite direction flowing)
It is mobile.
As shown in figure 28, guide's component 80 is towards in reverse direction by valve opening 51, and pulls spool 70 and make spool 70
It is further moved to negative direction.In the state that the valve seat 52 of the sealing surface 75 of spool 70 and valve base part 50 contacts, due to
Via the differential pressure of the spool 70 contacted with valve base part 50 to which valve opening 51 is blocked.Refrigerant can be limited towards negative direction
(arrow AR3) flows.
(effect of embodiment 5 and effect)
Also in the check-valves 40E of embodiment 5, on the opening and closing direction of spool 70 and spool is linked in spool 70
70 relative distance is the guide's component 80 that can be changed.It is arranged such as to valve closing side with not having (such as between spool 70 and cylinder body 14)
Spring to as exerting a force to spool 70 correspondingly, lighter can smaller constitute check-valves 40E, can also assist in compression
The whole miniaturization etc. of machine 10.
[Embodiment 6]
Figure 29 is the sectional view for showing the check-valves 40F in embodiment 6.Check-valves 40 in embodiment 1 and implementation
Check-valves 40F in mode 6 is in aspect below difference.
In check-valves 40F, check-valves 40F configured in one piece is in inhalation port 22.In check-valves 40F, valve base part
50 and bearing part 68 be pressed into the internal face of inhalation port 22.Bearing part 68 has intercommunicating pore 68H.Cylindrical body 62 is consolidated
Due to the surface of bearing part 68, intercommunicating pore 62H is formed in cylindrical body 62.In the present embodiment, also in the cylinder of spool 70
Shape portion 73 is formed with intercommunicating pore 73H.
(positive direction)
As shown in figure 29, when refrigerant has been flowed to positive direction (arrow AR1), spool 70 and guide's component 80 bear to come
From the pressure of refrigerant to valve opening 51 is opened direction movement (in other words, spool 70 and guide's component 80 be configured at from
The position that valve opening 51 has left).
In the 1st engaging portion 84 that the bottom of guide's component 80 83 is formed and the 2nd of the 2nd plate-like portion 72 formation in spool 70 the
Engaging portion 74 is separated from each other.The surface 85 of guide's component 80 is contacted with the 2nd plate-like portion 72 of spool 70.It is connected to only in spool 70
In the state of moving part 14s, guide's component 80 is not stretched out from valve opening 51 towards negative direction.Refrigeration from not shown evaporator
Agent is entered by valve opening 51, intercommunicating pore 62H, intercommunicating pore 73H and intercommunicating pore 68H in suction chamber 20.
(negative direction)
As shown in figure 30, when refrigerant has been flowed to negative direction (arrow AR2), guide's component 80 bears to press from refrigerant
Power (Fluid pressure).The pressure is acted in a manner of so that the side that guide's component 80 is located at towards valve opening 51 is moved.Companion
With guide's component 80 close to valve base part 50 (valve opening 51), refrigerant in valve opening 51 can by passage sections accumulate because of guide
Component 80 is approached and is gradually reduced.
Guide's component 80 enters in valve opening 51, to which guide's component 80 partly blocks valve opening 51.System in valve opening 51
Cryogen can by passage sections product further decrease, the flow velocity liter of refrigerant to be flowed near guide's component 80
Height, and act on the power for the bigger for thering is guide's component 80 to be made downstream to move in guide's component 80.
The bottom 83 of guide's component 80 is contacted with the 2nd plate-like portion 72 of spool 70, to the 1st engaging portion 84 and the 2nd locking
Portion 74 is mutually locking.It is mutually locking by the 1st engaging portion 84 and the 2nd engaging portion 74, to the movement of guide's component 80
And the power produced is applied in spool 70 by locking position.
In the state that the 1st engaging portion 84 and the 2nd engaging portion 74 are mutually locking, spool 70 pulled by guide's component 80 and
It is mobile towards the downstream side (downstream side on negative direction when refrigerant to opposite direction flowing) on negative direction.Pass through tubular
Body 62 and spool 70 can be more stably towards valve base parts 50 close to movement.
As shown in figure 31, guide's component 80 is towards in reverse direction by valve opening 51, and pulls spool 70 and make spool 70
It is further moved to negative direction.In the state that the valve seat 52 of the sealing surface 75 of spool 70 and valve base part 50 contacts, due to
Via the differential pressure of the spool 70 contacted with valve base part 50 to which valve opening 51 is blocked.In the state of valve closing, relative to
The pressure ratio that inhalation port 22 is located at the space of 20 side of suction chamber is located at relative to inhalation port 22 space of 24 side of connector portions
Pressure is high.Due to the pressure difference, spool 70 is persistently pressed against valve seat 52, and guide's component 80 (bottom 83) is persistently pressed against
In the 2nd plate-like portion 72 of spool 70.Valve opening 51 is blocked by spool 70, the inserting hole 71 of spool 70 by guide's component 80 bottom
83 block.Refrigerant can be limited to flow towards negative direction (arrow AR3).
(effect of embodiment 6 and effect)
In the check-valves 40F of embodiment 6, and there is no (such as between spool 70 and cylinder body 14) setting such as to closing yet
Valve direction correspondingly, lighter can smaller constitute check-valves 40F, can also assist in the spring as the force of spool 70
The whole miniaturization etc. of compressor 10.
Also in the check-valves 40F of embodiment 6, guide's component 80 bear the pressure of refrigerant and towards valve opening 51
Start mobile such action, with the movement of guide's component 80, spool 70 moves, and spool 70 close valve opening 51
And contact such action with valve seat 52.Also in the check-valves 40F of embodiment 6, can by the pressure of refrigerant to
Spool 70 and guide's component 80 are positioned against valve closing position from valve opening and are easily moved, even if can pass through if without using spring
The cooperation of guide's component 80 and spool 70 and steadily valve opening 51 is opened and closed.
[Embodiment 7]
Figure 32 is the sectional view for showing the check-valves 40G in embodiment 7.The check-valves 40G of present embodiment, in spool
70 this aspect including spring 88 are different from above-mentioned each embodiment.Spring 88 is configured at sealing formed in spool 70
Between the main part and retainer 14s in face 75.Spring 88 exerts a force to the main part of spool 70 towards 51 side of valve opening, still
In the case where spool 70 carries out valve opening 51 state (spool 70 and 50 contiguous state of valve base part) of valve closing, spring 88 is not right
The main part of spool 70 exerts a force.That is, spring 88 is not intended to the component for closing valve opening 51, it is configured to than having used in the past
The spring of valve closing is small.Even having the check-valves 40G of this composition, the previous check-valves phase with the spring for having valve closing
Than also lighter can smaller constitute check-valves 40G, can also assist in the whole miniaturization etc. of compressor 10.
It is not limited to composition as described above, can also be, spring 88 is configured to detach with spool 70, and is fixed on cylinder
On the recess portion 14a of body 14.In this case, spool 70 is configured to relative to 88 separation of spring/contact, in spring 88 with
The part that spool 70 contacts constitutes retainer 14s.Even this composition, spring 88 also exerts a force to spool 70 towards 51 side of valve opening,
But in the state that spool 70 carries out valve closing to valve opening 51, spring 88 does not exert a force to spool 70.Spring 88 is not intended to valve
The component that hole 51 is closed, the spring for being configured to the valve closing than having used in the past are small.Even having the check-valves of this composition
40G also lighter can smaller constitute check-valves 40G, also can compared with the previous check-valves for the spring for having valve closing
Contribute to the miniaturization etc. of the entirety of compressor 10.
The effect realized by the technological thought disclosed in above-mentioned each embodiment and effect, even if in non-return
Valve is provided with spring 88 (spring as not exerting a force in the closed valve state to valve closing direction to spool 70) as described above
In the case of can also obtain.That is, even and if not will energetically be added without using the technical meaning of this statement of spring
The check-valves of such spring 88 is excluded from the open scope or claims of this specification.
Embodiments of the present invention are illustrated, it should be realized that:This embodiment disclosed is all
Aspect be illustrate rather than restrictive content.The scope of the present invention is indicated by claims, it is intended that including with power
The meaning of sharp claim equalization and being had altered in range.
Claims (8)
1. a kind of compressor is that have to allow refrigerant towards discharge chambe to positive direction flowing and limit the refrigerant to negative side
To the compressor of the check-valves of flowing,
The check-valves has:
Valve base part, the valve base part be formed with for the refrigerant by valve opening;
Spool, the spool are configured at the downstream side of the valve base part in the positive direction, and relative to the valve base part
Separation/contact and the valve opening is opened and closed;And
Retainer, the retainer limit the opening and closing direction of the spool relative to the spool in the opposite side of the valve base part
On movement,
Guide's component is linked with via linking part in the spool, the linking part makes above-mentioned guide's component exist with the spool
Relative distance on the opening and closing direction of the spool be it is variable,
Guide's component can be by the valve opening, the pilot portion in the state that spool is connected to the retainer
Part is not stretched out from the valve opening towards the negative direction,
When the refrigerant is to the opposite direction flowing, guide's component bears the pressure from the refrigerant, from
And guide's component towards it is described in reverse direction by the valve opening and pull spool by make the spool to it is described instead
Direction is moved, due to the differential pressure via the spool contacted with the valve base part to which the valve opening is blocked.
2. compressor according to claim 1,
Guide's component has the 1st engaging portion,
The spool has the 2nd engaging portion engaging in the 1st engaging portion,
When the refrigerant is to the positive direction flowing, the 1st engaging portion is separated from each other with the 2nd engaging portion,
When the refrigerant is to the opposite direction flowing, guide's component is towards negative direction movement to described the
1 engaging portion and the 2nd engaging portion are mutually locking, and the spool is mutually locking in the 1st engaging portion and the 2nd engaging portion
It is moved towards the negative direction in the state of.
3. compressor according to claim 1 or 2,
Guide's component has the 1st plate-like portion and is provided for erecting being located at the valve opening in the 1st plate-like portion
The axle portion of the part of the opposite side in side,
The spool, which has, to be formed with for the 2nd plate-like portion of the inserting hole of axle portion insert and in the 2nd plate-like portion
The cylindrical portion of the part setting of the side opposite with the side that the valve opening is located at,
In the state that the refrigerant to the positive direction flowing, between the 1st plate-like portion and the 2nd plate-like portion
It is formed with gap.
4. compressor according to claim 1,
The linking part is made of at least one in rope, chain, stick, helical spring and tablet.
5. compressor according to claim 4,
Guide's component has spherical, tabular or hollow taper shape.
6. compressor according to any one of claims 1 to 5,
Guide's component is configured to lighter than the spool.
7. according to compressor according to any one of claims 1 to 6,
The compressor is also equipped with the guiding by being guided to the movement of the spool with the spool sliding contact
Portion.
8. compressor according to any one of claims 1 to 7,
The compressor has shell, the shell have for the refrigerant by inhalation port, and be formed with company in inside
The suction chamber of the inhalation port is passed through,
The valve base part is set in the inhalation port,
Guide's component and the spool are configured in the suction chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-065933 | 2017-03-29 | ||
| JP2017065933A JP6760176B2 (en) | 2017-03-29 | 2017-03-29 | Compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108692070A true CN108692070A (en) | 2018-10-23 |
| CN108692070B CN108692070B (en) | 2019-12-24 |
Family
ID=63844633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810264896.2A Expired - Fee Related CN108692070B (en) | 2017-03-29 | 2018-03-28 | Compressor with a compressor housing having a plurality of compressor blades |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6760176B2 (en) |
| KR (1) | KR101963214B1 (en) |
| CN (1) | CN108692070B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3966478A4 (en) * | 2019-05-08 | 2023-01-18 | Oceaneering International, Inc. | Dual disc non-slam nozzle check valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054757A (en) * | 2000-08-10 | 2002-02-20 | Tgk Co Ltd | Valve device |
| CN202392196U (en) * | 2011-12-06 | 2012-08-22 | 四川航空工业川西机器有限责任公司 | Inelastic reset one-way valve |
| CN203926949U (en) * | 2014-05-08 | 2014-11-05 | 佟勇华 | A kind of one-way valve |
| JP2015175466A (en) * | 2014-03-17 | 2015-10-05 | 株式会社豊田自動織機 | Check valve of compressor |
| CN105464976A (en) * | 2014-09-30 | 2016-04-06 | 株式会社丰田自动织机 | Compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53130519U (en) | 1977-03-23 | 1978-10-17 | ||
| JP3969107B2 (en) | 2002-02-07 | 2007-09-05 | 三浦工業株式会社 | Check valve |
| US8328543B2 (en) | 2009-04-03 | 2012-12-11 | Bitzer Kuehlmaschinenbau Gmbh | Contoured check valve disc and scroll compressor incorporating same |
| JP5429143B2 (en) * | 2010-11-25 | 2014-02-26 | 株式会社豊田自動織機 | Differential pressure control valve and variable capacity compressor |
| JP6103586B2 (en) * | 2013-03-27 | 2017-03-29 | 株式会社テージーケー | Control valve for variable capacity compressor |
-
2017
- 2017-03-29 JP JP2017065933A patent/JP6760176B2/en active Active
-
2018
- 2018-03-28 KR KR1020180035513A patent/KR101963214B1/en active IP Right Grant
- 2018-03-28 CN CN201810264896.2A patent/CN108692070B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054757A (en) * | 2000-08-10 | 2002-02-20 | Tgk Co Ltd | Valve device |
| CN202392196U (en) * | 2011-12-06 | 2012-08-22 | 四川航空工业川西机器有限责任公司 | Inelastic reset one-way valve |
| JP2015175466A (en) * | 2014-03-17 | 2015-10-05 | 株式会社豊田自動織機 | Check valve of compressor |
| CN203926949U (en) * | 2014-05-08 | 2014-11-05 | 佟勇华 | A kind of one-way valve |
| CN105464976A (en) * | 2014-09-30 | 2016-04-06 | 株式会社丰田自动织机 | Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101963214B1 (en) | 2019-03-28 |
| CN108692070B (en) | 2019-12-24 |
| JP2018168729A (en) | 2018-11-01 |
| KR20180110620A (en) | 2018-10-10 |
| JP6760176B2 (en) | 2020-09-23 |
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Granted publication date: 20191224 |