CN105805002A - Double-suction balance type double-screw compressor - Google Patents
Double-suction balance type double-screw compressor Download PDFInfo
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- CN105805002A CN105805002A CN201610293951.1A CN201610293951A CN105805002A CN 105805002 A CN105805002 A CN 105805002A CN 201610293951 A CN201610293951 A CN 201610293951A CN 105805002 A CN105805002 A CN 105805002A
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Classifications
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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
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
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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
- 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
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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
- F04C2240/00—Components
- F04C2240/20—Rotors
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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
- F04C2240/00—Components
- F04C2240/60—Shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a double-suction balance type double-screw compressor. A compressor host is of a five-segment type structure composed of a left exhaust base, a left work cavity, a middle partition part, a right work cavity and a right exhaust base; and driving power is input by a coupler. Work media are sucked in through a gas inlet formed in the middle partition part, and the work media are exhausted out of exhaust ports in the left exhaust base and the right exhaust base after being mechanically compressed by a pair of female rotor and male rotor which are symmetrically and oppositely arranged in parallel in the left work cavity and the right work cavity, identical in size and shape and opposite in rotation direction. Because the female rotor in the left work cavity and the male rotor in the right work cavity are oppositely arranged, the axial loads of the rotors are equal in magnitude and opposite in direction, and theoretically it can be achieved that the axial stress of supporting parts is zero. Thus, the supporting parts and the boundary dimensional can be reduced by 1/3 or above; the fault rate of the supporting parts is decreased by a half or above; and the fault-free running time is prolonged by one or more times, and production benefits are substantially improved.
Description
Technical field
The present invention relates to the double-screw compressor of a kind of improvement, the double suction balanced double screw compressor of especially a kind of improvement.
Background technology
Helical-lobe compressor is the retracting device key equipment such as oil, petroleum chemical enterprise's combustible gas, and can it stable operation be directly connected to economic benefit and the stable operation of the retracting devices such as combustible gas.Due in the tail gas of factory containing imflammable gas or poisonous gas, if helical-lobe compressor often breaks down, owing to the unplanned property that may cause in production is stopped work by its maintenance, except causing heavy economic losses, it is also possible to bring many safety problems to factory, simultaneously also can serious environment pollution.All of helical-lobe compressor is all single suction unbalanced helical-lobe compressor in the market, usually configures a pair intermeshing negative and positive rotor, set single working chamber in compressor body in its main frame, and working media sucks from one end of rotor, and the other end is discharged.The negative and positive rotor axial of this helical-lobe compressor, radially all stress and axially loaded are very big, the more important thing is except causing its vibration and noise relatively big and cause that its support member is shorter for non-failure operation time, service intervals is long, therefore, the life-span of helical-lobe compressor has become the key factor of this kind of enterprise safety operation of restriction.
Summary of the invention
It is an object of the invention to provide a kind of double suction balanced double screw compressor, this compressor arrangement is scientific and reasonable, and long service life is stable, and noise and vibration is little, it is simple to maintenance, high financial profit.
The technical scheme is that a kind of double suction balanced double screw compressor, whole compressor block adopt the theory structure mode that two traditional type double-screw compressors are arranged in opposite directions becomes after structural optimization in the middle part of air-breathing, both sides aerofluxus the overall structure of five-part form layout, overall structure include left exhaust seat, left working chamber, in every portion, right working chamber, right exhaust seat five part；This compressor include in every portion, yin, yang rotor, left and right working chamber, spline, radially position bearing, axially position bearing, left and right exhaust seat, forward and backward end cap, lip-type packing, synchromesh gear；Left and right working chamber be symmetrically distributed in every the both sides in portion, simultaneously left and right exhaust seat is connected with left and right working chamber respectively, stretches out the armature spindle axle journal of right side exhaust seat and passes through shaft coupling and be connected with drive motor；In left and right working chamber, a pair intermeshing yin, yang rotor of configured in parallel respectively, yin, yang rotor size, shape corresponding in two working chambers are identical, oppositely oriented, be respectively arranged one and discharge by the air vent of compression gas for working chamber on left and right exhaust seat；In in portion, be provided with the air inlet being connected with air intake installation and being connected with left and right working chamber, again left and right working chamber is separated every portion in simultaneously.
Every portion in being provided with in the middle of left and right working chamber, in support one end of yin, yang rotor in left and right working chamber every portion, and in portion's structure, be provided with the median septum separated by left and right working chamber.
The air inlet of left and right working chamber be each provided in portion.
Air vent is separately positioned on left and right exhaust seat.
Yin, yang rotor mandrel is provided with helixseal.
Compressor block adopts upper and lower dissection type or all-in-one-piece structure.
It is available to there are three kinds of schemes in the structure of the yin, yang rotor of double suction balanced double screw compressor, and its main purpose is to reduce its difficulty of processing, improves the processability of product structure of part.It is crucial that the assembly being assembled integrally should keep the symmetry of its helical structure；
Scheme 1 yin, yang armature spindle employing two-part and axle and screw-casing are the version of individual part.Its axle is determined direction by spline and is connected into a major axis, and left and right screw-casing is respectively fixedly connected with on left and right axle by positioning key, clamp nut；
Scheme 2 yin, yang armature spindle employing Y-axis integral type and left and right screw-casing are the version of individual part.Left and right screw-casing is respectively fixedly connected with the arranged on left and right sides at bearing by positioning key, clamp nut；
Scheme 3 yin, yang armature spindle employing two-part and axle and screw-casing are the version of non-individual part.Left and right armature spindle is determined direction by spline and is linked into an integrated entity.
It is an advantage of the current invention that: owing to the present invention adopts double working-chamber to arrange in opposite directions, the rotor size shape in two working chambers is identical, oppositely oriented；Air inlet be located in every portion and by median septum every being divided into two air inlets respectively for left and right working chamber air-breathing, the special construction of exhaust seat is located at by air vent；Cause its axial load realize truly to cancel out each other and balance i.e. axial load be zero advantages characteristic showing uniqueness.Its advantages characteristic has at least three, and one is to eliminate negative and positive rotor axial play, significantly improves the stress of core component and support member, and makes support member and integrally-built overall dimensions by reduction more than 1/3rd；Two is reduce support member temperature rise, reduces work noise, improves service life and make the rate of breakdown of support member reduce by more than 50；Three is extend maintenance cycle, improves work efficiency and makes non-failure operation time more than one times.Productivity effect can have and improves greatly.
Every portion's structure in adopting due to the present invention, separate two working chambers cleverly, made two working chambers achieve without collaborating, greatly reduced gas and disturb vibration and noise；Simultaneously because this invention adopts double suction structure, axial load is zero, can eliminate rotor axial string and shake and noise.Therefore, operate steadily, vibrate and noise to be obviously reduced be one of its feature.
The present invention, according to different working conditions, sets three kinds of organization plans for negative and positive rotor.Both the problem that can solve yin, yang rotor processing technique difference, also can scientifically select the version of yin, yang rotor according to different duty requirements.
(1) armature spindle employing two-part and axle and screw-casing are the version of individual part.Its axle is determined direction by spline and is connected into a major axis, and left and right spirillum is respectively fixedly connected with on left and right axle by positioning key, clamp nut.The screw rod of this kind of structure can realize the processing respectively of axle and screw-casing, its processing technique is obviously improved, processing has more specific aim and motility, it is simultaneously also beneficial to realize repair and replacement pattern, but, for the rotor of this structure, axial force mainly loads on the end face of screw-casing, when load is bigger, the axially location for screw-casing adopts shaft shoulder location mode.
(2) armature spindle employing Y-axis integral type and left and right screw-casing are the version of individual part.Left and right screw-casing is respectively fixedly connected with the arranged on left and right sides at bearing by positioning key, clamp nut.This structure is compared difference with former structure and is in that mandrel is integrated, and it has the drawback that: for the major axis of huge discharge high pressure ratio compressor, processing technology is deteriorated；Mandrel for small displacement little pressure ratio compressor can make the physical dimension of its intermediate supports cannot be reduced to desirable size.
(3) armature spindle employing two-part and axle and screw-casing are the version of non-individual part.Left and right armature spindle is determined direction by spline and is linked into an integrated entity.The advantage of this structure is that processing technology is better, and shortcoming is the relatively costly of bearing repair and replacement.
Accompanying drawing explanation
Fig. 1 is the first organization plan front view of screw rod in the present invention；
Fig. 2 is the axial semi-cutaway of the first organization plan of screw rod in the present invention；
Fig. 3 is the first organization plan A-A sectional view of screw rod in the present invention；
Fig. 4 is the second organization plan front view of screw rod in the present invention；
Fig. 5 is the axial semi-cutaway of the second organization plan of screw rod in the present invention；
Fig. 6 is the third organization plan front view of screw rod in the present invention；
Fig. 7 is the third organization plan B-B sectional view of screw rod in the present invention；
Fig. 8 is the shape assumption diagram of the present invention；
Fig. 9 is the section of structure of the present invention；
Figure 10 is the structure chart in the present invention every portion；
Figure 11 is the assembling outline drawing of compressor of the present invention；
Figure 12 is the sectional arrangement drawing of compressor of the present invention.
nullIn figure: 1-shaft coupling，2-small end cover，3-lip-type packing，4-drive end bearing bracket，The right exhaust seat of 5-，6-radially positions bearing，7-helixseal，Female rotor on the right side of 8-，Male rotor on the right side of 9-，The right working chamber of 10-，11-air inlet，12-axially positions bearing，13-spline，Every portion in 14-，Male rotor on the left of 15-，Female rotor on the left of 16-，The left working chamber of 17-，18-left exhaust seat，19-synchromesh gear，20-median septum，21-air vent，22-inlet flange，24-rear end cap，25-left end driven shaft，26-left end driving shaft，27-right-hand member driving shaft，28-right-hand member driven shaft，29-is positioning key radially，30-screw-casing，30a-male rotor screw-casing，30b-female rotor screw-casing，31-clamp nut，32-spline，33-driving shaft，34-screw-casing，34a-male rotor screw-casing，34b-female rotor screw-casing，35-driven shaft，36-clamp nut，37-is positioning key radially.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Following example are used merely to better introduce the present invention, are not limited to protection scope of the present invention.
Example 1: a kind of double suction balanced double screw compressor, it includes shaft coupling 1, small end cover 2, lip-type packing 3, drive end bearing bracket 4, right exhaust seat 5, radially location bearing 6, helixseal 7, right side female rotor 8, right side male rotor 9, right working chamber 10, air inlet 11, axially location bearing 12, spline 13, in every portion 14, left side male rotor 15, left side female rotor 16, left working chamber 17, left exhaust seat 18, synchromesh gear 19, median septum 20, air vent 21, inlet flange 22, rear end cap 24.
The composition of the present embodiment is: body adopts five-part form distribution, centre be provided with in every portion 14, in be provided with a circular inlet flange 22 every portion 14, circular inlet flange 22 and in inside portion 14, be provided with median septum 20, inlet flange 22 and internal air flue are separated into two halves.In on the right side of portion 14, connect right working chamber 10, on the left of portion 14, connect left working chamber 17.nullParallel in right working chamber 10 configure a pair intermeshing the moon、Male rotor 8、9，Parallel in left working chamber 17 configure a pair intermeshing the moon、Male rotor 16、15，The helical tooth part size shape of the corresponding rotor of left and right sides is equal，Oppositely oriented，Left working chamber 17 is connected with left exhaust seat 18，Right side working chamber 10 is connected with right exhaust seat 5，Left、Right exhaust seat 18、Air vent 21 it is respectively equipped with on 5，Male rotor 9 one end, right side is radially positioned bearing 6 and is fixed on right exhaust seat 5 by one，The other end by two axial location bearings 12 be fixed in portion 14，Male rotor 15 one end, left side is radially positioned bearing and is fixed on left exhaust seat 18 by one，The other end is fixed with right side male rotor 9 by spline 13，Female rotor 8 one end, right side is radially positioned bearing 6 and is fixed on right exhaust seat 5 by one，The other end by two axial location bearings 12 be fixed in portion 14，Female rotor 16 one end, left side is radially positioned bearing 6 and is fixed on left exhaust seat 18 by one，The other end is fixed with right side female rotor 8 by spline 13.On the mandrel of the side of exhaust seat, helixseal 7 is had at rotor 8,9,15,16.Drive end bearing bracket 4 is fixed on right exhaust seat 5, and rear end cap 24 is fixed on left exhaust seat 18, and small end cover 2 is fixed on drive end bearing bracket 4, is provided with lip-type packing 3 in the middle of small end cover 2 protecgulum 4.Synchromesh gear 19 is separately fixed at the left part of left side male rotor 15 and left side female rotor 16.Right side male rotor 9 is connected with motor by shaft coupling 1.Small end cover 2, right exhaust seat 5, right working chamber 10, in portion 14, left working chamber 17, left exhaust seat 18, rear end cap 24 between two two junctions except processing smooth except be additionally provided with sealing structure.
Example 2: big portion structure is identical with example 1 with assembly relation, wherein it is different in that the structure composition of negative and positive rotor, in this example, left side driving shaft 26 and right side driving shaft 27 are connected as a long driving shaft by spline 32, left side driven shaft 25 and right side driven shaft 28 are connected as a long driven shaft by spline 32, and screw-casing 30 is separately fixed at long driving shaft both sides and long driven shaft both sides by radially positioning key 29 and clamp nut 31.Wherein screw-casing 30 points of male rotor screw-casing 30a and female rotor screw-casing 30b, and corresponding screw-casing shape size is identical around, oppositely oriented.
Example 3: major part structure is identical with example 1 with assembly relation, wherein it is different in that the structure composition of negative and positive rotor, screw-casing 34 is separately fixed at the both sides of driving shaft 33 and the both sides of driven shaft 35 by radially positioning key 37 and clamp nut 36 in this example, wherein screw-casing divides male rotor screw-casing 34a and female rotor screw-casing 34b, screw-casing shape size corresponding around is identical, oppositely oriented.
Claims (10)
1. a double suction balanced double screw compressor, it is characterized in that: compressor block adopts the overall structure of five-part form layout of middle part air-breathing, both sides aerofluxus, this five-part form overall structure be respectively left exhaust seat (18), left working chamber (17), in every portion (14), right working chamber (10), right exhaust seat (5) five part；This compressor include in every portion (14), yin, yang rotor, left and right working chamber (17,10), spline (13), radially position bearing (6), axially position bearing (12), left and right exhaust seat (18,5), forward and backward end cap (4,24), lip-type packing (3), synchromesh gear (19)；Left and right working chamber (17,10) be symmetrically distributed in every the both sides of portion (14), left and right exhaust seat (18,5) is connected with left and right working chamber (17,10) respectively simultaneously, and the armature spindle axle journal stretching out right exhaust seat (5) is connected with drive motor by shaft coupling (1)；In left and right working chamber (17,10), a pair intermeshing yin, yang rotor of configured in parallel respectively, yin, yang rotor size, shape corresponding in two working chambers are identical, oppositely oriented, left and right exhaust seat (18,5) is respectively arranged one and discharges by the air vent (21) of compression gas for working chamber；In on portion (14), be provided with the air inlet (11) being connected with air intake installation and being connected with left and right working chamber, again left and right working chamber (17,10) is separated every portion (14) in simultaneously.
2. the double suction balanced double screw compressor described in claim 1, it is characterized in that: every portion (14) in being provided with in the middle of left and right working chamber (17,10), in support one end of yin, yang rotor in left and right working chamber (17,10) every portion (14), and in portion (14) structure, be provided with the median septum (20) separated by left and right working chamber (17,10).
3. the double suction balanced double screw compressor described in claim 1,2, it is characterised in that: the air inlet (11) of left and right working chamber (17,10) be each provided on portion (14).
4. the double suction balanced double screw compressor described in claim 1, it is characterised in that: air vent (21) is separately positioned on left and right exhaust seat (18,5).
5. the double suction balanced double screw compressor described in claim 1, it is characterised in that: yin, yang rotor mandrel is provided with helixseal (7).
6. the double suction balanced double screw compressor described in claims 1,2,4 or 5, it is characterised in that: compressor block adopts upper and lower split type structure.
7. the double suction balanced double screw compressor described in claims 1,2,4 or 5, it is characterised in that: compressor block adopts all-in-one-piece structure.
8. the double suction balanced double screw compressor described in claim 1,2, it is characterized in that: yin, yang armature spindle employing two-part and axle and screw-casing are the version of individual part, its axle is determined direction by spline and is connected into a major axis, and left and right screw-casing is respectively fixedly connected with on left and right axle by positioning key, clamp nut.
9. the double suction balanced double screw compressor described in claim 1,2, it is characterised in that: yin, yang armature spindle employing Y-axis integral type and left and right screw-casing are the version of individual part；Left and right screw-casing is respectively fixedly connected with the arranged on left and right sides at bearing by positioning key, clamp nut.
10. the double suction balanced double screw compressor described in claim 1,2, it is characterised in that: yin, yang armature spindle employing two-part and axle and screw-casing are the version of non-individual part, and left and right armature spindle is determined direction by spline and linked into an integrated entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293951.1A CN105805002A (en) | 2016-05-03 | 2016-05-03 | Double-suction balance type double-screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293951.1A CN105805002A (en) | 2016-05-03 | 2016-05-03 | Double-suction balance type double-screw compressor |
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| CN105805002A true CN105805002A (en) | 2016-07-27 |
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| CN201610293951.1A Pending CN105805002A (en) | 2016-05-03 | 2016-05-03 | Double-suction balance type double-screw compressor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018024201A1 (en) * | 2016-08-02 | 2018-02-08 | Johnson Controls Air Conditioning And Refrigeration (Wuxi) Co., Ltd. | A screw compressor with male and female rotors |
| CN108167186A (en) * | 2018-03-05 | 2018-06-15 | 珠海格力电器股份有限公司 | Helical-lobe compressor and air-conditioner set |
| CN109026687A (en) * | 2018-09-17 | 2018-12-18 | 广东葆德科技有限公司 | A kind of water-lubricated compressor |
| CN109690087A (en) * | 2016-09-16 | 2019-04-26 | 维特制造有限公司 | With the balanced loaded high suction pressure single-screw compressor of utilization sealing pressure thrust and correlation technique |
| US11268512B2 (en) | 2017-01-11 | 2022-03-08 | Carrier Corporation | Fluid machine with helically lobed rotors |
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| JPS51161609U (en) * | 1975-06-17 | 1976-12-23 | ||
| CN1793654A (en) * | 2005-12-22 | 2006-06-28 | 西安交通大学 | Double-screw compressor for high pressure system |
| CN201358919Y (en) * | 2009-02-26 | 2009-12-09 | 赵育基 | Balanced double screw compressor |
| CN205618356U (en) * | 2016-05-03 | 2016-10-05 | 华东交通大学 | Two helical -lobe compressor of double suction balanced type |
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2016
- 2016-05-03 CN CN201610293951.1A patent/CN105805002A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51161609U (en) * | 1975-06-17 | 1976-12-23 | ||
| CN1793654A (en) * | 2005-12-22 | 2006-06-28 | 西安交通大学 | Double-screw compressor for high pressure system |
| CN201358919Y (en) * | 2009-02-26 | 2009-12-09 | 赵育基 | Balanced double screw compressor |
| CN205618356U (en) * | 2016-05-03 | 2016-10-05 | 华东交通大学 | Two helical -lobe compressor of double suction balanced type |
Non-Patent Citations (2)
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| WO2018024201A1 (en) * | 2016-08-02 | 2018-02-08 | Johnson Controls Air Conditioning And Refrigeration (Wuxi) Co., Ltd. | A screw compressor with male and female rotors |
| US11725658B2 (en) | 2016-08-02 | 2023-08-15 | Johnson Controls Air Conditioning And Refrigeration (Wuxi) Co., Ltd. | Screw compressor with male and female rotors |
| CN109690087A (en) * | 2016-09-16 | 2019-04-26 | 维特制造有限公司 | With the balanced loaded high suction pressure single-screw compressor of utilization sealing pressure thrust and correlation technique |
| US11136978B2 (en) | 2016-09-16 | 2021-10-05 | Vilter Manufacturing Llc | High suction pressure single screw compressor with thrust balancing load using shaft seal pressure and related methods |
| US11530702B2 (en) | 2016-09-16 | 2022-12-20 | Vilter Manufacturing Llc | High suction pressure single screw compressor with thrust balancing load using shaft seal pressure and related methods |
| US11268512B2 (en) | 2017-01-11 | 2022-03-08 | Carrier Corporation | Fluid machine with helically lobed rotors |
| CN108167186A (en) * | 2018-03-05 | 2018-06-15 | 珠海格力电器股份有限公司 | Helical-lobe compressor and air-conditioner set |
| WO2019169922A1 (en) * | 2018-03-05 | 2019-09-12 | 珠海格力电器股份有限公司 | Screw compressor and air conditioning unit |
| CN109026687A (en) * | 2018-09-17 | 2018-12-18 | 广东葆德科技有限公司 | A kind of water-lubricated compressor |
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