CN108834423A - Scrawl compressor - Google Patents
Scrawl compressor Download PDFInfo
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- CN108834423A CN108834423A CN201780016587.7A CN201780016587A CN108834423A CN 108834423 A CN108834423 A CN 108834423A CN 201780016587 A CN201780016587 A CN 201780016587A CN 108834423 A CN108834423 A CN 108834423A
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- pressure
- back pressure
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- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Back pressure room pressure is inhibited to reduce along with the opening action of back pressure regulating valve.Scrawl compressor (100) includes：Whirlpool disk unit (1)：Back pressure chamber (H3), above-mentioned back pressure chamber (H3) are connected to via pressure supply passageway (L3) with discharge room (H2)；And back pressure regulating valve (50), above-mentioned back pressure regulating valve (50) are set to discharge access (L4).It is equipped with first throttle portion (T1) on pressure supply passageway (L3), is equipped with the second throttle (T2) on discharge access (L4).Back pressure regulating valve (50) is set to discharge access (L4), and in back pressure chamber pressure (Pm) and sucking room pressure PsPressure difference be greater than regulation pressure difference (Pv) in the case where towards valve opening position act.Second throttle (T2) has the sectional area (A than first throttle portion (T1)in) big and the spool side opening portion than the fluid provider of back pressure regulating valve (50) (56) sectional area (Av1) small sectional area (Aout)。
Description
Technical field
The present invention relates to a kind of Scrawl compressor, there is static vortex disk and movable orbiting scroll, and between two whirlpool disks of inflow
The fluids such as the refrigerant in space are compressed.
Background technique
This Scrawl compressor includes whirlpool disk unit, and above-mentioned whirlpool disk unit has static vortex disk and movable orbiting scroll, this vortex
Type compressor is for example loaded into the refrigerant circuit of air conditioner for motor vehicle, is pressed for the refrigerant to refrigerant circuit
Contracting.Above-mentioned whirlpool disk unit is configured to around the revolution circumnutation of the axle center of static vortex disk due to movable orbiting scroll is via moving axis, so that two whirlpools
The volume of confined space between disk gradually decreases, in confined space to the fluids such as the refrigerant gas for being flowed into suction chamber into
Row compression, and above-mentioned compression fluid is discharged via discharge room.
As this Scrawl compressor, for example, as it is known that there is Scrawl compressor documented by patent document 1.Patent text
Scrawl compressor documented by offering 1 has back pressure chamber in the back side of movable orbiting scroll.Above-mentioned back pressure chamber passes through pressure supply passageway
And it is connected to the high-pressure area of compressor, and be connected to by discharge access with the area of low pressure of compressor.In addition, back pressure chamber
Interior pressure is adjusted to sucking room pressure and discharge room by being set to the back pressure regulating valve of the pressure difference action type of discharge access
Authorized pressure among interior pressure.Above-mentioned Scrawl compressor utilizes back pressure room pressure by movable orbiting scroll towards static vortex disk side on one side
Pressing makes movable orbiting scroll relative to static vortex disk revolution circumnutation on one side.Thus, in above-mentioned Scrawl compressor, transported in compression
In turning, it can inhibit the phenomenon that movable orbiting scroll far from static vortex disk, as a result, preventing the generation of mal-compression.
Existing technical literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2013-148043 bulletin
Summary of the invention
The technical problems to be solved by the invention
However, being in valve opening state in back pressure regulating valve in the Scrawl compressor documented by above patent document 1
When, indoor refrigerant of back pressure (refrigerant gas) etc. intensely flows out, as a result, back pressure room pressure may surpass expection
Ground reduces.That is, back pressure room pressure may become unstable after just opening back pressure regulating valve.This phenomenon exists
A possibility that occurring in the case that carbon dioxide coolant is used as refrigerant height.
The present invention makees in view of above-mentioned this actual conditions, and its purpose is to provide a kind of Scrawl compressors, can press down
Back pressure room pressure processed acts along with the valve opening of back pressure regulating valve and is reduced.
Technical scheme applied to solve the technical problem
The Scrawl compressor of one aspect of the invention includes：Whirlpool disk unit, above-mentioned whirlpool disk unit have static vortex disk and determine
Whirlpool disk compresses the fluid flowed into via suction chamber, and above-mentioned compression fluid is discharged via discharge room；Back pressure chamber, on
It states the face upward back side of the movable orbiting scroll of back pressure chamber to be formed, and is connected to via pressure supply passageway with above-mentioned discharge room；
And the back pressure regulating valve of pressure difference action type, above-mentioned back pressure regulating valve are set to the sucking for making above-mentioned back pressure chamber Yu above-mentioned whirlpool disk unit
The discharge access of room side region connection, and the indoor pressure of above-mentioned back pressure is adjusted.In addition, above-mentioned Scrawl compressor packet
It includes：First throttle portion, above-mentioned first throttle portion are set to above-mentioned pressure supply passageway；And second throttle, above-mentioned second throttling
Portion is set to above-mentioned discharge access.Above-mentioned back pressure regulating valve is set to above-mentioned second throttle of ratio in above-mentioned discharge access more by sucking
The position of room side, and above-mentioned back pressure regulating valve has：Spool；Seat portion, above-mentioned seat portion are contacted with above-mentioned spool, are separated；
And fluid provider, above-mentioned fluid provider are formed in above-mentioned seat portion, and are opened, closed by above-mentioned spool.In addition,
Above-mentioned back pressure regulating valve is configured to make in the case where the pressure difference of back pressure room pressure and sucking room pressure is greater than regulation pressure difference
Above-mentioned spool is mobile towards valve opening position, in the case where above-mentioned pressure difference is above-mentioned regulation pressure difference situation below, makes above-mentioned spool towards pass valve
Direction is mobile.In addition, above-mentioned second throttle has the sectional area than above-mentioned first throttle portion greatly and than above-mentioned fluid provider
Spool side opening portion the small sectional area of sectional area.
Invention effect
In the Scrawl compressor in terms of said one, back pressure chamber upstream side and downstream side access (it is,
Pressure supply passageway and discharge access) it is respectively equipped with throttle (first throttle portion and second limited the circulation of fluid
Throttle).In addition, the sectional area of the second throttle is set as bigger than the sectional area in first throttle portion and than the valve of fluid provider
The sectional area in core side opening portion is small.In this way, being equipped with the second throttle in the upstream side of fluid provider, above-mentioned second throttle is
The throttle for comparing the fluid provider more constriction of back pressure regulating valve and the circulation of fluid being limited.Thus, even if back pressure
The fluid provider of regulating valve is in the open state, also can inhibit outflow of the fluid from back pressure chamber by the second throttle.Also
It is to say, even if back pressure regulating valve is opened, the outflow of fluid is also inhibited by the second throttle, therefore, can reduce back pressure room pressure
Reduction amount, as a result, can make back pressure room pressure stablize.In this way, it is possible to provide be able to suppress back pressure room pressure along with
The opening action of back pressure regulating valve and reduced Scrawl compressor.
Detailed description of the invention
Fig. 1 is the schematic sectional view of the Scrawl compressor of an embodiment of the present invention.
Fig. 2 is for flowing the block diagram being illustrated to the refrigerant in above-mentioned Scrawl compressor.
Fig. 3 is the main portion sectional view for indicating the major part of above-mentioned Scrawl compressor.
Specific embodiment
Hereinafter, detailed description of embodiments of the present invention referring to attached drawing.
Fig. 1 is the schematic sectional view of the Scrawl compressor of present embodiment.
The Scrawl compressor 100 of present embodiment be loaded into such as air conditioner for motor vehicle refrigerant circuit (
Referred to as refrigerating circuit), and will be discharged after refrigerant (fluid) compression that the low-pressure side of refrigerant circuit (vaporizer side) sucks
Component.Above-mentioned Scrawl compressor 100 includes：Whirlpool disk unit 1；Shell 10, above-mentioned shell 10 have refrigerant in inside
Suction chamber H1 and discharge room H2；Electric motor 20, above-mentioned electric motor 20 drive movable orbiting scroll unit 1；Bearing cage 30, above-mentioned axis
Maintaining part 30 is held to be able to rotate for an end (being upper end in Fig. 1) for the drive shaft 21 of electric motor 20 to be supported to；
And the inverter 40 of the drive control of electric motor 20.In addition, in the present embodiment, using carbon dioxide coolant
(CO2Refrigerant) it is used as above-mentioned refrigerant, and the refrigeration in vehicle is carried out by above-mentioned refrigerant circuit.In addition, Scrawl pressure
Contracting machine 100 is enumerated the case where compressor of so-called integral inverter and is illustrated as an example.
Above-mentioned whirlpool disk unit 1 has the static vortex disk 2 and movable orbiting scroll 3 being engaged with each other.Static vortex disk 2 has discoid bottom plate 2a
It is integrally formed on above-mentioned bottom plate 2a with scrollwork wrap 2b, above-mentioned scrollwork wrap 2b.Movable orbiting scroll 3 has discoid bottom plate
3a and scrollwork wrap 3b, above-mentioned scrollwork wrap 3b are integrally formed on above-mentioned bottom plate 3a.
Two whirlpool disks 2,3 are configured to engage the scrollwork wrap 2b of whirlpool disk 2 with the scrollwork wrap 3b of whirlpool disk 3.In detail
For, two whirlpool disks 2,3 are configured to, and make the ora terminalis of the protrusion side of the scrollwork wrap 2b of static vortex disk 2 and the bottom plate 3a of movable orbiting scroll 3
Between have defined gap, and make the scrollwork wrap 3b of movable orbiting scroll 3 protrusion side ora terminalis and static vortex disk 2 bottom plate 2a it
Between have defined gap.The above-mentioned gap that can be changed in compression operation is maintained at model appropriate in compression operation
In enclosing, as a result, the air-tightness of aftermentioned confined space (discharge chambe) S is suitably maintained.
In addition, two whirlpool disks 2,3 are configured in the state that the circumferential angle of two scrollwork wraps 2b, 3b mutually stagger
Make the side wall of two scrollwork wraps 2b, 3b localized contact each other.Thereby, it is formed between two scrollwork wraps 2b, 3b new
Confined space (discharge chambe) S of month shape.
Static vortex disk 2 is fixed on the aftermentioned rear casing 12 of shell 10, and has in the radial central portion of above-mentioned static vortex disk 2
Towards the groove portion 2a1 of 12 side opening of rear casing.Specifically, above-mentioned groove portion 2a1 is formed in the back side of bottom plate 2a (it is, with dynamic
The end face of 3 opposite side of whirlpool disk).
Movable orbiting scroll 3 is configured in the state that the rotation of movable orbiting scroll 3 is prevented, can be via drive shaft 21 and around static vortex disk
2 axle center revolution circumnutation.Thereby, whirlpool disk unit 1 makes to be formed between two whirlpool disks 2,3, is specifically formed in two
Confined space S between scrollwork wrap 2b, 3b is mobile towards central portion, so that the volume of above-mentioned confined space gradually decreases.Its
As a result, whirlpool disk unit 1 is flowed into confined space S in confined space S to from the outer end side of scrollwork wrap 2b, 3b
Refrigerant is compressed.
As shown in Figure 1, above-mentioned shell 10 has：Front casing 11, above-mentioned front casing 11 by whirlpool disk unit 1, electric motor 20,
Bearing cage 30 and inverter 40 are contained in its inside；Rear casing 12；And inverter cover 13.In addition, by utilizing bolt
Front casing 11, rear casing 12 and inverter cover 13 are fastened together by 14 equal tightening members, to constitute shell 10.
Above-mentioned front casing 11 has substantially circular peripheral wall portion 11a and divider wall parts 11b.The inner space of front casing 11
Accommodating space for being accommodated to whirlpool disk unit 1, electric motor 20 and bearing cage 30 is separated by divider wall parts 11b
With the accommodating space for being accommodated to inverter 40.The opening of the one end (being upside in Fig. 1) of peripheral wall portion 11a is rear
Shell 12 is closed.In addition, the opening of the another side (being downside in Fig. 1) of peripheral wall portion 11a is closed by inverter cover 13.Dividing
The supporting part 11b1, above-mentioned supporting part 11b1 that tubular is provided projectingly at the radial central portion of wall part 11b carry out bearing 15
It keeps, above-mentioned bearing 15 supports another end (being lower end in Fig. 1) of drive shaft 21.
In addition, being formed with the inhalation port P1 of refrigerant in peripheral wall portion 11a.Low-pressure side (evaporation from refrigerant circuit
Device side) refrigerant be inhaled into front casing 11 via above-mentioned inhalation port P1.Thus, suction is played in the space in front casing 11
It enters the room the effect of H1.In addition, refrigerant circulates around the electric motor 20 in suction chamber H1 etc..In addition, in Fig. 1, it is electronic
The space of 20 upside of motor is connected to the space of 20 downside of electric motor, and constitutes one together with the space of 20 downside of electric motor
A suction chamber H1.In addition, refrigerant is flowed as the fluid-mixing with micro lubricating oil in suction chamber H1.
Above-mentioned rear casing 12 is formed as discoid, and keeps the peripheral part of rear casing 12 tight by tightening members such as bolts 14
It is fixed in one end side end (being upper end in Fig. 1) of peripheral wall portion 11a.
In addition, abutting the peripheral part in the back side for having the bottom plate 2a of static vortex disk 2 in an end face of rear casing 12 (changes speech
It, surrounds the position of groove portion 2a1).By an end face of above-mentioned rear casing 12 and the groove portion 2a1 of bottom plate 2a, zoning goes out refrigerant
Discharge room H2.The drain passageway L2 of compression refrigerant is formed in the central part of bottom plate 2a.In addition, above-mentioned discharge room H2 is to incite somebody to action
The mode of the opening covering of drain passageway L2 is provided with check valve and (carries out to from discharge room H2 to the flowing of 1 side of whirlpool disk unit
The check-valves of limitation) 16.In discharge room H2, pressed in the confined space S being formed between two scrollwork wraps 2b, 3b
The refrigerant of contracting is discharged via drain passageway L2 and check valve 16.In addition, it is formed with discharge port P2 in rear casing 12, on
Stating discharge port P2 is connected to discharge room H2 with the high-pressure side (that is, condenser) of refrigerant circuit.The compression system in the H2 of room is discharged
Cryogen is discharged via above-mentioned discharge port P2 towards the high-pressure side of refrigerant circuit.
In addition, though the illustration is omitted, but be equipped with oil eliminator appropriate for example in discharge port P2, above-mentioned oil separation
Device is for isolating lubricating oil from the compression refrigerant for being flowed into discharge port P2.Lubrication is isolated by above-mentioned oil eliminator
Refrigerant (refrigerant including remaining micro lubricating oil) after oil is via discharge port P2 and towards the height of refrigerant circuit
Press side discharge.On the other hand, the lubricating oil isolated by oil eliminator is for example in the shape for suitably containing compressed refrigerant
Under state, guided to aftermentioned pressure supply passageway L3.
Above-mentioned electric motor 20 includes the stator core list of drive shaft 21, rotor 22 and the radial outside for being configured at rotor 22
Member 23, and above-mentioned electric motor 20 is applicable in such as three-phase alternating current motor.For example, the battery (illustration omitted) from vehicle
Direct current Electric currentIt is converted into alternating current by inverter 40, and is powered to electric motor 20.
Above-mentioned drive shaft 21 is to connect via crank mechanism with movable orbiting scroll 3, and the rotary force of electric motor 20 is passed
It is handed to the component of movable orbiting scroll 3.An end (it is, 3 side end of the movable orbiting scroll) insert of drive shaft 21 is formed in bearing holding
The through-hole in portion 30, and be supported to and be able to rotate by bearing 17.On the other hand, another end (40 side of inverter of drive shaft 21
Portion) it is supported to and can rotate by the bearing 15 chimeric with supporting part 11b1.
The drive shaft for the axis hole that above-mentioned rotor 22 is formed at the radial center in rotor 22 via chimeric (such as indentation)
21, and be supported to rotate in the radially inner side of stator core unit 23.When due to from the power supply of inverter 40 in stator
When generating magnetic field in iron core unit 23, rotary force can be acted on rotor 22, to drive drive shaft 21 to rotate.
Above-mentioned bearing cage 30 is setting in front casing 11, and to the component that bearing 17 is kept, wherein above-mentioned
3 side end of movable orbiting scroll of drive shaft 21 is supported to and is able to rotate by bearing 17.Bearing maintaining part 30 clamps between rear casing 12
In the state of having static vortex disk 2, by the bolt 14 of fastening, and it is fastened together with static vortex disk 2 and rear casing 12.
Specifically, bearing cage 30 for example formed as bottomed tube, has cylindrical portion 30a and bottom wall part 30b, it is above-mentioned
Bottom wall part 30b is located at the one end of cylindrical portion 30a.Cylindrical portion 30a so that the internal diameter of cylindrical portion 30a open side than bottom wall part 30b
The mode that the internal diameter of side is big is expanding, and has and will connect between the major diameter position 30a1 of cylindrical portion 30a and path position 30a2
Shoulder 30a3.Movable orbiting scroll 3 is contained in the space gone out by major diameter position 30a1 and shoulder 30a3 zoning.Bearing cage 30
Opening closed by static vortex disk 2.In addition, being fitted into the path position 30a2 of cylindrical portion 30a has bearing 17.In addition, in bottom wall part
The radial central portion of 30b offers through-hole, and above-mentioned through-hole is used to insert for 3 side end of movable orbiting scroll of drive shaft 21.In bearing 17
Containment member 18a appropriate is equipped between bottom wall part 30b.
Cricoid thrust plate 19 is configured between the shoulder 30a3 of bearing cage 30 and the bottom plate 3a of movable orbiting scroll 3.Shoulder
Portion 30a3 receives the thrust from movable orbiting scroll 3 via thrust plate 19.Shoulder 30a3 and bottom plate 3a, abut with thrust plate 19
Position is each configured with containment member 18b.
In addition, zoning goes out back pressure chamber H3 between bottom plate 3a and path position 30a2.That is, back pressure chamber H3 is formed as
Back side (side opposite with static vortex disk 2) towards movable orbiting scroll 3.Ensure above-mentioned back pressure chamber by containment member 18a, 18b
The air-tightness of H3.
In addition, front casing 11 peripheral wall portion 11a inner peripheral surface and bearing cage 30 cylindrical portion 30a outer peripheral surface it
Between be formed with fluid and import access L1, above-mentioned fluid, which imports access L1, winds two scrollworks of suction chamber H1 and whirlpool disk unit 1
Space H4 connection near the peripheral part of part 2b, 3b.Refrigerant in suction chamber H1 (is specifically refrigerant and micro profit
The fluid-mixing of lubricating oil) access L1 is imported via fluid and is directed to space H4.Since space H4 imports access by fluid
L1 is connected to suction chamber H1, therefore, pressure (the sucking room pressure P in the pressure and suction chamber H1 in the H4 of spaces) equal.
In the present embodiment, above-mentioned crank mechanism includes：Cylindric shaft sleeve part 25, above-mentioned shaft sleeve part 25 is prominent to be formed
In the back side (side end face back pressure chamber H3) of bottom plate 3a；Eccentric bush 27, above-mentioned eccentric bush 27 is installed on eccentric state to be driven
The crank 26 being arranged at 3 side end of movable orbiting scroll of moving axis 21；And sliding bearing 28, above-mentioned sliding bearing 28 and shaft sleeve part 25 are embedding
It closes.Eccentric bush 27 is supported to rotate in shaft sleeve part 25 via sliding bearing 28.In addition, in the movable orbiting scroll of drive shaft 21
3 side ends are equipped with the counterweight 29 opposite with the centrifugal force when movement of movable orbiting scroll 3.In addition, although the illustration is omitted, but energy
It is appropriately arranged with the rotation prevented the rotation of movable orbiting scroll 3 and prevents mechanism.Thereby, movable orbiting scroll 3 be configured to movable orbiting scroll 3 from
Turn in the state of being prevented, it can be via above-mentioned crank mechanism around the revolution circumnutation of the axle center of static vortex disk 2.
Fig. 2 is to flow the block diagram being illustrated for the refrigerant to Scrawl compressor 100.
The refrigerant of low-pressure side from refrigerant circuit is directed to suction chamber H1 via inhalation port P1, then,
Access L1 is imported via fluid and is directed to the space H4 near 1 outer end of whirlpool disk unit.In addition, the refrigerant in the H4 of space
It is inhaled into the confined space S between scrollwork wrap 2b and scrollwork wrap 3b, and pressed in above-mentioned confined space S
Contracting.Above-mentioned compressed refrigerant (compression refrigerant) is discharged to discharge room H2 via drain passageway L2 and check valve 16,
Then, it is discharged from discharge room H2 via discharge port P2 towards the high-pressure side of refrigerant circuit.In this way, constituting has following whirlpool disk list
Member 1 imports the refrigeration that access L1 is flowed into space H4 to via inhalation port P1, suction chamber H1, fluid that is, in confined space S
Agent is compressed, and is discharged to the outside above-mentioned compression refrigerant via drain passageway L2, discharge room H2, discharge port P2.
Here, the Scrawl compressor 100 of present embodiment further includes the back pressure regulating valve 50 of pressure difference action type, above-mentioned back
Press regulating valve 50 to pressure (the back pressure room pressure P in back pressure chamber H3m) be adjusted.
In the present embodiment, back pressure regulating valve 50 is the check-valves of pressure difference action type, in back pressure room pressure PmWith suction
Enter room pressure PsPressure difference be greater than regulation pressure difference PvIn the case where, it is acted towards valve opening position, is regulation pressure difference P in above-mentioned pressure differencev
In situation below, acted towards closing direction, and by back pressure chamber pressure PmIt is adjusted to pressure (the discharge room in discharge room H2
Interior pressure Pd) and sucking room pressure PsBetween authorized pressure (middle pressure).About above-mentioned back pressure regulating valve 50 allocation position,
Structure and backpressure regulation movement will describe in detail below.
In the present embodiment, as depicted in figs. 1 and 2, Scrawl compressor 100 is in addition to fluid importing access L1 and discharge
Except access L2, including pressure supply passageway L3 and discharge access L4.
Above-mentioned pressure supply passageway L3 is the access for being connected to discharge room H2 with back pressure chamber H3.That is, back pressure
Room H3 is connected to via pressure supply passageway L3 with discharge room H2.By above-mentioned oil eliminator (illustration omitted) from discharge port P2
The lubricating oil isolated in interior compression refrigerant can be guided via pressure supply passageway L3 into back pressure chamber H3, for carrying on the back
The lubrication of each sliding position in pressure chamber H3.
In the present embodiment, specifically, pressure supply passageway L3 is opened on one end via discharge port P2
As high-pressure area discharge room H2 and its other end is opened on the mode of back pressure chamber H3 through rear casing 12, static vortex disk 2
The cylindrical portion 30a of bottom plate 2a and bearing cage 30 and formed.
It is equipped with first throttle portion T1 in the midway of pressure supply passageway L3, above-mentioned first throttle portion T1 is logical to supplying in pressure
The flowing of the fluid to circulate in the L3 of road is limited.First throttle portion T1 is by having the other parts than pressure supply passageway L3
The component that the pore of small internal diameter is formed.Thus, lubricating oil isolated from the compression refrigerant in discharge room H2 etc. is by first
Throttle T1 is suitably depressurized, and is supplied via pressure supply passageway L3 to back pressure chamber H3.Then, lubricating oil etc. is via pressure
Supply passageway L3 is directed in back pressure chamber H3, to make back pressure room pressure PmRise.
Above-mentioned discharge access L4 be for make the suction chamber side region (i.e. area of low pressure) of back pressure chamber H3 and whirlpool disk unit 1 it
Between the access that is connected to.
In the present embodiment, specifically, path position 30a2 of the discharge access L4 in cylindrical portion 30a, and edge
The direction orthogonal with drive shaft 21 extends.In addition, one of discharge access L4 is open-ended in back pressure chamber H3, discharge access L4's
Another is open-ended in fluid importing access L1.That is, in the present embodiment, flows into and import on access L1 is used as
Suction chamber side region is stated, discharge access L4 makes to be connected between back pressure chamber H3 and fluid importing access L1.Since fluid imports access
One of L1 is open-ended in suction chamber H1, and therefore, fluid imports pressure and sucking room pressure P in access L1sIt is equal.
In addition, being equipped with the second throttle T2 in the midway of discharge access L4, above-mentioned second throttle T2 is in discharge access
The flowing of the fluid to circulate in L4 is limited.Second throttle T2 is by having in smaller than the other parts of discharge access L4
The component that the pore of diameter is formed.It, will below about the sectional area of above-mentioned second throttle T2 and above-mentioned first throttle portion T1
Narration in detail.
Then, referring to Figure 1 and Figure 3, the allocation position to the back pressure regulating valve of present embodiment 50 and structure carry out detailed
Narration.Fig. 3 is the major part enlarged cross-sectional view for including back pressure regulating valve 50.
Back pressure regulating valve 50 be set to it is in discharge access L4, more lean on than the second throttle T2 suction chamber side (it is, the
The flow direction downstream side of two throttle T2) position.
Specifically, back pressure regulating valve 50 includes valve shell 51, valve seat shell 52, spool 53 and force application element 54, and
Above-mentioned back pressure regulating valve 50 for example imports access L1 side opening end set on the fluid of discharge access L4, constitutes the one of discharge access L4
Part.
Above-mentioned valve shell 51 has cylindrical portion 51a and bottom wall part 51b, above-mentioned bottom wall part 51b by an end seal of cylindrical portion 51a
It closes, above-mentioned valve shell 51 is integrally formed into bottomed tube, and has valve chamber 51c in inside.
It is respectively formed with fluid outlet aperture 55 in cylindrical portion 51a and bottom wall part 51b, above-mentioned fluid outlet aperture 55 is opened in stream
Body imports access L1.Fluid outlet aperture 55 offers one there are two for example opening up on cylindrical portion 51a on bottom wall part 51b.
The space that fluid outlet aperture 55 imports fluid in access L1 is connected to the valve chamber 51c in valve shell 51.Stream can suitably be set
The forming position and number of body outlet opening 55.
Above-mentioned valve seat shell 52 constitutes an end of back pressure regulating valve 50, and imports access with the fluid of discharge access L4
The open end of the side L1 is chimeric etc..Valve seat shell 52 has for example formed as the outer diameter mutually fitted with the internal diameter with discharge access L4
Bottom tube-like, and there is cylindrical portion 52a and seat portion 52b.The one end of cylindrical portion 52a is fixed on the open end side of valve shell 51.
Seat portion 52b is located at the another side of cylindrical portion 52a, and has the coniform valve seat 52b1 for contacting, separating with spool 53.
In addition, offering fluid provider 56 in seat portion 52b, above-mentioned fluid provider 56 is opened by spool 53, is closed.Stream
Body ingate 56 is to be connected to the space of the side back pressure chamber H3 of discharge access L4 with valve chamber 51c, and be used to include lubrication
The refrigerant of oil imported into the hole in valve chamber 51c.
In addition, in the present embodiment, fluid provider 56 is formed as the side end back pressure chamber H3 for making fluid provider 56
Position than the side valve chamber 51c (53 side of spool) position undergauge.In the present embodiment, the back of above-mentioned fluid provider 56
The position of the side end pressure chamber H3 is configured to the second throttle T2.
That is, in the present embodiment, the second throttle T2 is in the side end back pressure chamber H3 of fluid provider 56
It is integrally formed at position with seat portion 52b.
Above-mentioned spool 53 is the component opening fluid provider 56, closing, and is formed as spherical, and by 54 court of force application element
The direction seat portion 52b force.The diameter of spool 53 is set to bigger than the internal diameter in the 53 side opening portion of spool of fluid provider 56.
Above-mentioned force application element 54 has：An end of helical spring 54a, above-mentioned helical spring 54a and valve shell 51
Bottom wall part 51b is abutted；And force application rod 54b, above-mentioned force application rod 54b are connect with another end of helical spring 54a, and by valve
Core 53 exerts a force towards closing direction, and above-mentioned force application element 54 is configured in the valve chamber 51c of valve shell 51.According to the whirlpool of whirlpool disk unit 1
The design value (setting value) that wrap shape etc. determines is rolled up, and passes through the selected spiral shell with active force corresponding with above-mentioned design value
Spring 54a is revolved, sets pressure difference, i.e. above-mentioned regulation pressure difference P to set the valve opening of back pressure regulating valve 50v。
In the present embodiment, back pressure regulating valve 50 is configured to have：Valve shell 51；Valve seat shell 52；Fluid provider
56, above-mentioned fluid provider 56 is formed in valve seat shell 52, and is opened in the side back pressure chamber H3 of discharge access L4；Spool 53,
Fluid provider 56 is opened, is closed by above-mentioned spool 53；Seat portion 52b, above-mentioned seat portion 52b are formed in valve seat shell 52, and
It contacts, separate with spool 53；Force application element 54；And fluid outlet aperture 55, above-mentioned fluid outlet aperture 55 are opened in fluid importing
Access L1, in back pressure chamber pressure PmWith sucking chamber pressure PsPressure difference be greater than regulation pressure difference PvIn the case where, make spool 53 towards valve opening
Direction is mobile, is regulation pressure difference P in above-mentioned pressure differencevIn situation below, keep spool 53 mobile towards closing direction.
Then, to the sectional area of the fluid provider 56 of first throttle portion T1, the second throttle T2 and back pressure regulating valve 50
Size relation be illustrated.
Second throttle T2 has the sectional area A than first throttle portion T1inIt opens greatly and than the spool side of fluid provider 56
The sectional area A of oral areav1Small sectional area Aout.In addition, the summation A of the sectional area of fluid outlet aperture 55v2Than fluid provider 56
Sectional area Av1Greatly (it is, Av2> Av1> Aout> Ain).Thus, the minimum path sectional area in discharge access L4 is by second
The sectional area A of throttle T2outIt determines.
Then, to the back pressure room pressure P of the back pressure regulating valve 50 in Scrawl compressor 100mAdjusting act carry out
It is schematically illustrate.In addition, being in close valve state, and back pressure room pressure P to back pressure regulating valve 50 belowmThe case where constantly becoming larger
It is illustrated.In addition, in the following description, room pressure P is dischargeddIn lower limit value (the underload shape of aftermentioned mobility scale
State) at stablize.
Firstly, spool 53 is pressed on valve seat 52b1 by force application element 54 by back pressure regulating valve 50, by fluid inlet
It closes the opening portion in hole 56.At this point, on spool 53 effect have by force application element 54 helical spring 54a application active force and
The sucking room pressure P that access L1 and fluid outlet aperture 55 transmit is imported via fluids.In the above-described state, back pressure intraventricular pressure
Power PmIt gradually gets higher, as back pressure room pressure PmWith sucking room pressure PsPressure difference be greater than according to the active force of force application element 54
Determining regulation pressure difference PvWhen, spool 53 overcomes the active force of force application element 54 and moves towards valve opening position.In back pressure regulating valve
50 when being in valve opening state, and refrigerant gas in back pressure chamber H3 etc. imports the side access L1 towards fluid via discharge access L4
(it is, area of low pressure side) release, therefore, back pressure room pressure PmIt can reduce.But due to circulating in discharge access L4
The flowings of the fluids such as refrigerant gas limited by the second throttle T2, therefore, the stream such as refrigerant gas from back pressure chamber H3
The outflow of body is suppressed.Refrigerant gas of the fluid importing midway access L1 etc. is directed to and then via back pressure regulating valve 50
Fluid imports the flowing in access L1, is back to 1 side of whirlpool disk unit (the space side H4).In addition, when above-mentioned pressure difference is regulation pressure difference
PvWhen following, spool 53 is mobile towards closing direction under the active force of force application element 54.Back pressure regulating valve 50 makes back pressure chamber as a result,
Interior pressure PmRise.In this way, in underload or just start running after, back pressure regulating valve 50 will regulation pressure difference PvUpper add is inhaled
Enter room pressure PsObtained valve opening setting pressure Pc(=Ps+Pv) it is used as goal pressure, and spool 53 is made to open, close, and make
Back pressure room pressure PmClose to above-mentioned goal pressure.
However, the external environment condition (extraneous gas temperature etc.) of the condenser (high-pressure side) of refrigerant circuit can become
It is dynamic.Thus, the heat-exchange capacity of the condenser of refrigerant circuit can also change.Thus, the discharge of Scrawl compressor 100
Room pressure PdIt can be changed according to the heat-exchange capacity of condenser.In other words, the load of Scrawl compressor 100 can be sent out
It changes dynamic.On the other hand, the suction of the refrigerant flowed into from the evaporator of refrigerant circuit (low-pressure side) to Scrawl compressor 100
Enter pressure and constant is controlled so as to by above-mentioned air conditioner for motor vehicle.That is, sucking room pressure PsIt is according to system
The setting value of the requirement ability setting of refrigerant circuit (refrigerating circuit).As a result, sucking room pressure PsConstant is defined
Setting value.Strictly speaking, room pressure P is suckedsAlso small variations can occur.But with discharge room pressure PdAmplitude of fluctuation
It compares, sucks room pressure PsAmplitude of fluctuation it is small to the degree that can be ignored, therefore, suck room pressure PsIt can be considered fixed
Value.
Carbon dioxide coolant is being used as in the present embodiment of refrigerant, for example, sucking room pressure PsIt is set as
Room pressure P is discharged in 3.5MpadIt is changed in the range of 5~13Mpa in the operating of compressor.Thus, suck room pressure
PsIt is fixed as defined setting value (for example, 3.5MPa), room pressure P is dischargeddIt can be sent out in above-mentioned mobility scale (operating range)
It changes dynamic.In this case, in Scrawl compressor 100, room pressure P is dischargeddIt is smaller, then more it is in underload, row
Room pressure P outdIt is bigger, then more it is in high load capacity.As a result, about back pressure room pressure PmOptimum value, also according to discharge
Room pressure PdVariation and change.Thus, for example, in order in underload will not become back pressure surplus state and incite somebody to action
Valve opening sets pressure Pc(=Ps+PV) be set in lower situation, back pressure deficiency state can be become in high load capacity, and press
The volume efficiency of contracting machine reduces.About the structure for eliminating above-described problem, it is described in detail below.
In the present embodiment, in back pressure room pressure PmReach valve opening setting pressure Pc, and it is in back pressure regulating valve 50
After valve opening state, room pressure P is dischargeddIn the case where further up, back pressure regulating valve 50 is configured to make in back pressure chamber
Pressure PmAccording to discharge room pressure PdRising and increase.
Specifically, in the present embodiment, firstly, in order to eliminate back pressure surplus state when underload, valve opening setting
Pressure PcIt is redefined for that room pressure P is for example dischargeddMobility scale in discharge room pressure PdLower limit value and suction chamber
Interior pressure PsAbove-mentioned setting value between value.
In addition, in the present embodiment, in order to eliminate back pressure deficiency state when high load capacity, in cutting for the second throttle T2
Area AoutIt is set as：As discharge room pressure PdIn the case where variation in predetermined above-mentioned mobility scale, in above-mentioned change
In dynamic range, make flow (mass flow) G of the fluid to circulate in the second throttle T2outThan being flowed in first throttle portion T1
Flow (mass flow) G of logical fluidinLess (it is, Gin> Gout).Thereby, even if back pressure regulating valve 50 is in valve opening shape
State, the discharge rate that fluid is discharged from back pressure chamber H3 are also smaller than flowing to the supply amount of the fluid of back pressure chamber H3 supply always.Its result
It is, even if back pressure regulating valve 50 is in valve opening state, back pressure room pressure PmIt also can be according to discharge room pressure PdVariation and send out
It changes dynamic, in high load capacity, back pressure room pressure PmIt can be according to discharge room pressure PdRising and rise.
More specifically, above-mentioned GinWith above-mentioned GoutMeet formula below (1)~formula (3) relational expression.Wherein：ρ d is indicated
The density of the fluid to circulate in first throttle portion T1, ρ m indicate the density of the fluid to circulate in the second throttle T2.
Gin> Gout... formula (1)
Gin=Ain×{2×(Pd-Pm)×ρd}1/2... formula (2)
Gout=Aout×{2×(Pm-Ps)×ρm}1/2... formula (3)
In addition, ρ m can be indicated by the approximate expression shown by formula below (4).
ρm≈ρd×(Pm/Pd) ... formula (4)
Here, according to above-mentioned formula (1)~formula (4) and Pm=Pv+PsRelational expression, the relational expression of following formula (5) sets up.
Ain/Aout> { (Pv×(Pv+Ps))/((Pd-(Pv+Ps))×Pd)}1/2... formula (5)
That is, in the present embodiment, as sucking room pressure PsIt is fixed as defined setting value, and room is discharged
Interior pressure PdIn the case where variation in above-mentioned mobility scale, AinAnd AoutIt is set as in discharge room pressure PdAbove-mentioned variation
Meet the relationship of mathematical expression (5) in range.
Scrawl compressor 100 according to the present embodiment is set respectively on pressure supply passageway L3 and discharge access L4
There is throttle (first throttle portion T1, the second throttle T2).In addition, the sectional area A of the second throttle T2outIt is set as than first
The sectional area A of throttle T1inBig and the spool side opening portion than fluid provider 56 sectional area Av1It is small.Thus, even if back pressure
The fluid provider 56 of regulating valve 50 is in the open state, also can inhibit stream of the fluid from back pressure chamber H3 by the second throttle T2
Out.That is, even if back pressure regulating valve 50 is opened, the outflow of fluid is also inhibited by the second throttle T2, therefore, can reduce back
Press room pressure PmReduction amount, as a result, back pressure room pressure P can be mademStablize.
In this way, it is possible to provide one kind is able to suppress back pressure room pressure PmSubtract along with what the valve opening of back pressure regulating valve 50 acted
Small Scrawl compressor 100.
In addition, in the present embodiment, the sectional area A of the second throttle T2outIt is set as in discharge room pressure PdChange
In dynamic range, the flow G of the fluid to circulate in the second throttle T2outStream than the fluid to circulate in first throttle portion T1
Measure GinIt is small.In this way, passing through the sectional area A of the second throttle T2 of settingoutEven if back pressure regulating valve 50 is under valve opening state,
When high load capacity, it can also make back pressure room pressure PmAccording to discharge room pressure PdRising and increase.Thus, for example, discharge is indoor
Pressure PdIt changes and increases in its mobility scale (operating range), even if at high load conditions, can also suppress or eliminate back
Press insufficient situation.
In addition, in the present embodiment, AinAnd AoutIt is set as in discharge room pressure PdAbove-mentioned mobility scale in meet
The relationship of above-mentioned formula (5).As a result, by only suitably setting A in advanceinWith AoutRatio, can reliably make to carry on the back in high load capacity
Press room pressure PmRise.
In addition, in the present embodiment, the valve opening of back pressure regulating valve 50 sets pressure Pc(=Pv+Ps) row of being redefined for
Room pressure P outdMobility scale in discharge room pressure PdLower limit value (for example, 5MPa) and sucking room pressure Ps's
Value appropriate between setting value (for example, 3.5MPa).In this way, setting pressure P by setting valve openingc, so as in underload
The on-off action of Shi Liyong back pressure regulating valve 50 is by back pressure room pressure PmThe pressure of low constant when being adjusted to than high load capacity
Power.As a result, the situation of back pressure surplus can be suppressed or eliminated in underload.
Back pressure that is, in the present embodiment, when back pressure surplus and high load capacity when can eliminate underload simultaneously
It is insufficient.As a result, it is possible to provide one kind can be in discharge room pressure PdAbove-mentioned mobility scale (that is, the operating model of compressor
Enclose) in, do not sacrifice mechanical efficiency and volume efficiency any one in the case where carry out the Scrawl compression of good compression operation
Machine 100.
In addition, in the present embodiment, the second throttle T2 is at the position of the back pressure chamber side end of fluid provider 56
It is integrally formed with seat portion 52b.Second throttle T2 can be easily formed in the portion in the downstream side of discharge access L4 as a result,
Position.In addition, the diameter of spool 53, which is typically set at, makes spool 53 and switch object using spherical spool 53
The corner in the spool side opening portion of fluid provider 56 abuts.Thus, if the internal diameter in the spool side opening portion of fluid provider 56
It is smaller, then need to reduce the diameter of spool 53.On this point, the spool side opening portion of the fluid provider 56 in present embodiment
Open up bigger than the second throttle T2, therefore, spool 53 can be using the structure with general diameter.In addition, the second throttle
T2 can also be formed as one with seat portion 52b.
In addition, in the present embodiment, including fluid imports access L1, above-mentioned fluid import access L1 make suction chamber H1 with
Space H4 connection near the peripheral part of whirlpool disk unit 1, discharge access L4 are connected to back pressure chamber H3 with fluid importing access L1.By
This, the lubricating oil flowed into back pressure chamber H3 follows fluid to import the flowing of access L1 and be back to whirlpool disk unit 1, can improve
The lubricity and air-tightness of sliding part in whirlpool disk unit 1.
More than, although the preferred embodiment of the present invention is illustrated, the present invention is not restricted to above-mentioned implementation
Mode can carry out various modifications and change based on the technical idea of the invention.
For example, in the present embodiment, in order to eliminate back pressure surplus state when underload, enumerating valve opening setting pressure Pc
It is set as that room pressure P is dischargeddLower limit value and sucking room pressure PsSetting value between value the case where carry out as an example
Explanation, however, it is not limited to this.For example, allowing mechanical efficiency in the preferentially volume efficiency of raising Scrawl compressor 100
In the case where reduction, valve opening can also be set into pressure PcBe set to it is higher, back pressure can be reliably prevented not in high load capacity
The situation of foot.In this case, as long as the material etc. by contact portion to static vortex disk 2 and movable orbiting scroll 3 etc. improves
To strengthen the wear resistance of whirlpool disk unit 1.
In addition, in the present embodiment, discharge access L4 is using the knot for being connected to back pressure chamber H3 with fluid importing access L1
Structure.That is, importing suction chamber side region of the access L1 as whirlpool disk unit 1 using fluid.However, the company of discharge access L4
Object is connect to be not limited thereto.Though suction chamber H1 itself can also be used as whirlpool disk unit 1 for example, the illustration is omitted
Suction chamber side region.In this case, discharge access L4 is connected to back pressure chamber H3 with suction chamber H1.
In addition, in the present embodiment, refrigerant uses CO2Refrigerant, however, it is not limited to this, can be applicable in system appropriate
Cryogen.
In addition, in the present embodiment, enumerating the compressor that Scrawl compressor 100 is so-called integral inverter
It is illustrated as an example of situation, however, it is not limited to this, and Scrawl compressor 100 can also be seperated with inverter 40.
(symbol description)
1 whirlpool disk unit；
2 static vortex disks；
3 movable orbiting scrolls；
50 back pressure regulating valves；
55 fluid outlet apertures；
56 fluid providers；
52b seat portion；
53 spools；
100 Scrawl compressors；
H1 suction chamber；
Room is discharged in H2；
H3 back pressure chamber；
The space H4；
L1 fluid imports access；
L3 pressure supply passageway；
L4 discharge access；
T1 first throttle portion；
The second throttle of T2.
Claims (8)
1. a kind of Scrawl compressor, which is characterized in that including：
Whirlpool disk unit, the whirlpool disk unit have static vortex disk and static vortex disk, compress to the fluid flowed into via suction chamber, and
The compression fluid is discharged via discharge room；
Back pressure chamber, the back pressure chamber are formed towards the back side of the movable orbiting scroll, and via pressure supply passageway and with it is described
Room connection is discharged；
The back pressure regulating valve of pressure difference action type, the back pressure regulating valve are set to the sucking for making the back pressure chamber Yu the whirlpool disk unit
The discharge access of room side region connection, and the indoor pressure of the back pressure is adjusted；
First throttle portion, the first throttle portion are set to the pressure supply passageway；And
Second throttle, second throttle are set to the discharge access,
Second throttle described in the ratio that the back pressure regulating valve is set in the discharge access more leans on the position of suction chamber side, and
And the back pressure regulating valve has：Spool；Seat portion, the seat portion are contacted with the spool, are separated；And fluid inlet
Hole, the fluid provider are formed in the seat portion, and are opened, closed by the valve body, back pressure room pressure with
In the case that the pressure difference of sucking room pressure is greater than regulation pressure difference, keeps the spool mobile towards valve opening position, be in the pressure difference
In regulation pressure difference situation below, keep the spool mobile towards closing direction,
Second throttle has bigger than the sectional area in the first throttle portion and opens than the spool side of the fluid provider
The small sectional area of the sectional area of oral area.
2. Scrawl compressor as described in claim 1, which is characterized in that
The sectional area of second throttle is set as the feelings when discharge room pressure changes in predetermined mobility scale
Under condition, in above-mentioned mobility scale, the flow-rate ratio of the fluid to circulate in second throttle is in the first throttle portion
The flow of the fluid of circulation is few.
3. Scrawl compressor as claimed in claim 2, which is characterized in that
The sectional area in the first throttle portion is being set as Ain, the sectional area of second throttle is set as Aout, by the suction
Enter room pressure and is set as Ps, the regulation pressure difference is set as Pv, the discharge room pressure is set as Pd, the PsIt is fixed as advising
Fixed setting value, and the PdIn the case where changing in the mobility scale,
The AinWith the AoutIt is set as in the PdThe mobility scale in meet the relationship of following formulas (1)：Ain/Aout
> { (Pv×(Pv+Ps))/((Pd-(Pv+Ps))×Pd)}1/2... formula (1).
4. Scrawl compressor as claimed in claim 3, which is characterized in that
In the PvIt is upper to add the PsThe setting value obtain valve opening setting pressure be redefined for the mobility scale
The interior PdLower limit value and the PsThe setting value between value.
5. Scrawl compressor according to any one of claims 1 to 4, which is characterized in that
Second throttle is formed as one at the position of the back pressure side end of the fluid provider with the seat portion.
6. the Scrawl compressor as described in any one of claims 1 to 5, which is characterized in that
Access is imported including fluid, the fluid, which imports access, to be made near the peripheral part of the suction chamber and the whirlpool disk unit
Space connection,
The discharge access is connected to the back pressure chamber with fluid importing access.
7. the Scrawl compressor as described in any one of claims 1 to 5, which is characterized in that
The discharge access is connected to the back pressure chamber with the suction chamber.
8. the Scrawl compressor as described in any one of claims 1 to 7, which is characterized in that
The fluid is carbon dioxide coolant.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016061727A JP6738176B2 (en) | 2016-03-25 | 2016-03-25 | Scroll compressor |
| JP2016-061727 | 2016-03-25 | ||
| PCT/JP2017/008631 WO2017163826A1 (en) | 2016-03-25 | 2017-02-24 | Scroll-type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108834423A true CN108834423A (en) | 2018-11-16 |
| CN108834423B CN108834423B (en) | 2020-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780016587.7A Active CN108834423B (en) | 2016-03-25 | 2017-02-24 | Scroll compressor |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6738176B2 (en) |
| CN (1) | CN108834423B (en) |
| DE (1) | DE112017001535B4 (en) |
| WO (1) | WO2017163826A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113490793A (en) * | 2019-03-06 | 2021-10-08 | 纬湃科技有限责任公司 | Method, device and air conditioning system for operating a scroll compressor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101955985B1 (en) * | 2017-12-29 | 2019-03-11 | 엘지전자 주식회사 | Motor-operated compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03202695A (en) * | 1989-12-29 | 1991-09-04 | Toyota Autom Loom Works Ltd | Variable volume scroll type compressor for air conditioning of vehicle |
| JP2013148020A (en) * | 2012-01-19 | 2013-08-01 | Toyota Industries Corp | Scroll type fluid machine |
| CN103629111A (en) * | 2012-08-27 | 2014-03-12 | 湖南华强电气有限公司 | Semi-closed scroll compressor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004301092A (en) | 2003-03-31 | 2004-10-28 | Toyota Industries Corp | Scroll compressor |
| JP5201113B2 (en) | 2008-12-03 | 2013-06-05 | 株式会社豊田自動織機 | Scroll compressor |
| JP5637151B2 (en) | 2012-01-20 | 2014-12-10 | 株式会社豊田自動織機 | Differential pressure valve and electric compressor provided with differential pressure valve |
-
2016
- 2016-03-25 JP JP2016061727A patent/JP6738176B2/en active Active
-
2017
- 2017-02-24 CN CN201780016587.7A patent/CN108834423B/en active Active
- 2017-02-24 DE DE112017001535.9T patent/DE112017001535B4/en active Active
- 2017-02-24 WO PCT/JP2017/008631 patent/WO2017163826A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03202695A (en) * | 1989-12-29 | 1991-09-04 | Toyota Autom Loom Works Ltd | Variable volume scroll type compressor for air conditioning of vehicle |
| JP2013148020A (en) * | 2012-01-19 | 2013-08-01 | Toyota Industries Corp | Scroll type fluid machine |
| CN103629111A (en) * | 2012-08-27 | 2014-03-12 | 湖南华强电气有限公司 | Semi-closed scroll compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113490793A (en) * | 2019-03-06 | 2021-10-08 | 纬湃科技有限责任公司 | Method, device and air conditioning system for operating a scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017172542A (en) | 2017-09-28 |
| JP6738176B2 (en) | 2020-08-12 |
| WO2017163826A1 (en) | 2017-09-28 |
| CN108834423B (en) | 2020-01-14 |
| DE112017001535B4 (en) | 2023-01-05 |
| DE112017001535T5 (en) | 2018-12-13 |
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Effective date of registration: 20220930 Address after: Gunma Patentee after: SANDEN Corp. Address before: Gunma Patentee before: SANDEN AUTOMOTIVE CONPONENTS Corp. |