CN100432437C - Gear type compressor - Google Patents
Gear type compressor Download PDFInfo
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- CN100432437C CN100432437C CNB2004100194018A CN200410019401A CN100432437C CN 100432437 C CN100432437 C CN 100432437C CN B2004100194018 A CNB2004100194018 A CN B2004100194018A CN 200410019401 A CN200410019401 A CN 200410019401A CN 100432437 C CN100432437 C CN 100432437C
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- gear
- compressor
- bulge
- outer gear
- press part
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Abstract
The present invention provides a gear-shaped compressor which comprises a main body of a compressor, a motor, a gear-shaped compression section and a gear-shaped bulge, wherein the gear-shaped compression section is used for compressing coolant which flows into the compressor from an evaporator through that the driving force of the motor is utilized, and the gear-shaped bulge is used for coolant bulging, and the coolant newly flows into the compressor after the coolant flows out the compressor and flows through a condenser. At least one oil sink in a long bar shape is arranged on the peripheral surface of outer gears in the gear-shaped compression section and the gear-shaped bulge, and the length direction of the oil sink is perpendicular to the peripheral surface of the outer gears and is parallel to the direction of a rotary shaft of the motor. The gear-shaped compressor is provided, and the performance coefficient of a refrigerating system is improved. The traditional coolant is replaced by coolant, such as carbon dioxide, etc., which is favorable to environment protection. The structure of the gear-shaped compressor is used for reducing the vibration and the noise when the compressor operates, lubricating oil effectively diffuses at the contacting surfaces among each cylinder and the outer gears of the compression section and the bulge, the friction is reduced, and the mechanical abrasion is lowered.
Description
Technical field
The present invention is the invention of relevant gear type compressor, and a kind of gear type compressor that can improve the coefficient of performance of refrigeration system particularly is provided.Simultaneously, the surface of contact that the lubricant oil among the present invention can lubricate between cylinder and the outer gear effectively is surperficial entirely, can prevent the mechanical power loss of bringing because of friction.
Background technique
Usually, compressor is the power that utilizes motor or steam turbine, to the pressurization of working fluids such as air, refrigerant, improves a kind of machine of working fluid pressure.This compressor is widely used in field of household appliances and production fields such as air-conditioning, refrigerator.
Compressor can be divided into volume shape compressor (positive displacementcompressor) and turbine shape compressor by the compression type.
Wherein, what be widely used in production field is volume shape compressor, and volume shape compressor is by reducing the working method of volume boost pressure.Volume shape compressor can be divided into reciprocal compressor (reciprocating compressor) and rotary compressor.
Reciprocal compressor utilizes the to-and-fro motion compressed fluid of cylinder interior piston, the advantage of reciprocal compressor is to produce higher compression efficiency with less mechanical realization, but there is the limited problem of rotational speed in reciprocal compressor because of the to-and-fro motion of piston.Simultaneously, also because the inertia of piston produces bigger vibration.
Rotary compressor utilizes the revolution compression working fluid of the eccentric compressing roller of cylinder interior, and rotary compressor is compared with reciprocal compressor, can obtain higher compression efficiency with lower speed.And it is low that rotary compressor also possesses vibration, the advantage that noise is little.
Rotary compressor need discharge remaining air for variable flow under certain rotation speed, and for the pressure of dealing with when discharging surplus air increases, stabilizer need be set, therefore, and the structure more complicated.
In rotary compressor, if the slit between each parts is not consistent, then be easy to generate the leakage of pressurized gas, cause decreased performance.In case when producing wearing and tearing, then performance can sharply descend.Therefore, add and to guarantee very high precision man-hour.
In addition, when the pressure rapid change, be easy to generate the phenomenon of damage of bearings.In a word, above-mentioned rotary compressor has different performances and pluses and minuses separately with reciprocal compressor.
Refrigerating circuit is as the loop on a kind of thermodynamic definitions, and its purpose is to reduce by work done the temperature of low-temp. portion, and the system that forms this refrigerating circuit is called refrigeration system.Refrigeration system is mainly used in refrigerator, air-conditioning etc.
As shown in Figure 1, refrigeration system is made up of compressor 30, condenser 50, expansion valve 40, vaporizer 60.Compressor 30 is compressed into high-temperature high-pressure state to refrigerant, is condensed into liquid state the refrigerant that flows out from compressor 30 is outwards emitted heat in condenser 50 after, and the heat insulation expansion of refrigerant that expansion valve 40 is discharged condenser 50 sharply reduces the pressure of refrigerant.The refrigerant that flows through expansion valve 40 absorbs heat from the outside and is evaporated into gaseous state in vaporizer 60.
Fig. 2 is that the refrigeration system P-h of Fig. 1 concerns schematic representation, shows among the figure and utilizes circumferential work (Wc), and compressor 30 compression refrigerants (1 → 2), and compressed refrigerant is outwards emitted heat (2 → 3) by condenser 50 in the compressor 30.Flow through the refrigerant behind the condenser 50, when flowing through expansion valve 40,, absorb heat (4 → 1) when flowing through vaporizer 60 more afterwards from the outside by heat insulation expansion (3 → 4).The refrigerant that flows through vaporizer 60 is from newly flow to compressor 30.The coefficient of performance (the COP of refrigeration system; Coefficient of performance) be defined as, low-temp. portion is from the merit (Wc) of heat (QH) ratio piston compressor of vaporizer 60 absorptions.
In order to form refrigeration system efficiently, make compressor have more effective structure when needing to select suitable refrigerant.Because traditional freon has certain destruction to ozonosphere, recently to CO
2Come into one's own etc. alternative refrigerant.Therefore need to use when substituting refrigerant to guarantee that also refrigerant does not leak and have the compressor of the confidence level on the mechanical structure.
Summary of the invention
In order to address the above problem, the purpose of this invention is to provide a kind of gear type compressor that improves the coefficient of performance of refrigeration system and have new structure.
In order to achieve the above object, the technical solution used in the present invention provides a kind of gear type compressor, include compressor body, motor, wherein: this structure also comprise gear type press part that the driving force of utilizing motor is compressed the refrigerant that flows to from vaporizer and flow out from compressor and the condenser of flowing through after the gear type bulge that expands of the refrigerant that flows into again.
Described gear type press part includes the main bearing of fixedlying connected with the running shaft of motor, compression cylinder, the outer gear of press part, the internal gear of press part and the expansion oplate compressed board of holding concurrently, main bearing is fixed on the below of motor, compression cylinder is connected with main bearing and is provided with thereunder, outer gear rotatably is arranged on the inner space of compression cylinder, the internal gear that is rotated from electric machine rotational axis reception power is arranged on the outer gear inboard, and with outer gear engagement and compression refrigerant, the expansion oplate compressed board of holding concurrently is connected with compression cylinder and is provided with thereunder.
Described gear type bulge includes expansion oplate the hold concurrently internal gear of outer gear, bulge of compressed board, expansion cylinder, bulge and the supplementary bearing of fixedlying connected with the running shaft of motor, described expansion cylinder be arranged on expansion oplate hold concurrently compressed board the below and be attached thereto, outer gear rotatably is arranged on the inner space of expansion cylinder, the internal gear that is rotated from electric machine rotational axis reception power is arranged on the outer gear inboard, and with outer gear engagement and refrigerant is expanded, supplementary bearing is arranged on the below of expansion cylinder and is attached thereto.
A vertical bar shape oil groove is set respectively on the outer gear outer peripheral surface of described press part and bulge at least, and the length direction of oil groove is vertical with the outer peripheral surface of outer gear, and is parallel with the running shaft direction of motor.
Be located at oil groove on the outer gear outer peripheral surface of press part and bulge respectively and be saw-toothed shape, bellows-shaped, spiral-shaped a kind of shape.
Body interior at compression cylinder and expansion cylinder is provided with oil supply hole by radial direction respectively.
Effect of the present invention is by the gear type compressor being provided, can improving the coefficient of performance of refrigeration system.Use the traditional refrigerants of refrigerant replacement such as carbon dioxide among the present invention, provide the compressor that is beneficial to environmental protection.Use carbon dioxide as refrigerant, its spreadable life is long, and does not have toxicity, and has the non-combustible characteristics.And price is low, and aboundresources does not have the necessity that reclaims.Because carbon dioxide is dissolved in the lubricant oil easily, and refrigerating capacity is 5 times of per unit volume CFC series R-22.Therefore, when carrying out the refrigeration of same power, its working volume is very little, and compression ratio is also very little.In the gear type compressor provided by the invention, the power of internal gear and outer gear and torque ratio are balanced, vibration and noise in the time of therefore can reducing compressor operating.Simultaneously, can make lubricant oil be diffused in each cylinder of press part and bulge and the surface of contact between the outer gear effectively, reduce friction, reduce mechanical wear.In the gear type compressor, expansion oplate and compressed board are same parts, can reduce component number and simplify assembling procedure.
Description of drawings
Fig. 1 is that common refrigeration system constitutes block diagram;
Fig. 2 is that the refrigeration system P-h of Fig. 1 concerns schematic representation;
Fig. 3 is a gear type compressor arrangement schematic representation of the present invention;
Fig. 4 A is the I-I drawing in side sectional elevation of Fig. 3;
Fig. 4 B is the II-II drawing in side sectional elevation of Fig. 3;
Fig. 5 is the outer gear front elevation among Fig. 4;
Fig. 6 constitutes block diagram for adopting compressor refrigeration system of the present invention.
Among the figure:
1: shell 100: suction pipe
110: power supply terminal 120: base plate
2: motor 200: stator
210: rotor 220: axle
3: press part 300: main bearing
300a: suction port 310: compression cylinder
310h: oil supply hole 320: outer gear
320a: teeth groove 320g: oil groove
330: internal gear 330a: tooth top
340: the expansion oplate compressed board 340a that holds concurrently: exhaust port
350: the secondary suction pipe 360 of press part: press part discharge tube
4: bulge 410: expansion cylinder
410g: oil supply hole 420: outer gear
420g: oil groove 420a: teeth groove
430: internal gear 430a: tooth top
440: supplementary bearing 440a: suction port
440b: exhaust port 450: bulge suction pipe
460: bulge discharge tube 5: condenser
6: vaporizer
Embodiment
Below,, to Fig. 6 embodiment provided by the invention is elaborated with reference to Fig. 3.
Fig. 3 is a gear type compressor arrangement schematic representation of the present invention, and Fig. 4 A is the I-I drawing in side sectional elevation of Fig. 3, and Fig. 4 B is the II-II drawing in side sectional elevation of Fig. 3, and Fig. 5 is the outer gear front elevation among Fig. 4, and Fig. 6 constitutes block diagram for refrigeration system after adopting compressor of the present invention.
Gear type compressor among the present invention comprises shell 1, motor 2, and gear type press part 3, gear type bulge 4 is formed.Shell 1 has certain inside space, and motor 2 is arranged on shell 1 inside.The power that gear type press part 3 utilizes motor 2 to provide, the refrigerant that vaporizer 6 is discharged compresses.Again flow into compressor inside after the refrigerant that press part 3 is discharged flows through condenser 5, expanded by gear type bulge 4.
Gear type press part 3 comprises that hold concurrently compressed board 340 of main bearing 300, compression cylinder 310, outer gear 320, internal gear 330, expansion oplate forms.Main bearing 300 that is connected with the running shaft of motor and the motor that is fixed on shell 1 below, annular compression cylinder 310 is connected with main bearing 300, is provided with thereunder.Outer gear 320 rotatably is arranged on the inner space of compression cylinder 310, and the internal gear 330 that is rotated from motor reception power is arranged on outer gear 320 inboards, and meshes compression refrigerant with outer gear 320.The expansion oplate compressed board 340 of holding concurrently is connected with compression cylinder 310, and is provided with thereunder.
Be positioned on outer gear 320 outer peripheral surfaces of compression cylinder 310 inside, form a plurality of vertical bar shape oil groove 320g.The length direction of oil groove 320g is vertical with outer gear 320 outer peripheral surfaces, and is parallel with the electric machine rotational axis direction.
A plurality of oil groove 320g are formed on the outer peripheral surface of outer gear 320 across certain intervals by circumferencial direction.
Side at shell 1 is provided with suction pipe 100, is used for to the shell 1 inner refrigerant that sucks.In the bottom of shell 1, have base plate 120, be used to be provided with compressor.
On main bearing 300, be attached thereto the secondary suction pipe 350 of press part is set, the secondary suction pipe 350 of press part is used for the refrigerant that flows to shell 1 inside is sent to by compression cylinder 310 inner space of outer gear 320.On expansion oplate is held concurrently compressed board 340, discharge tube 360 is set, discharge tube 360 is used for the refrigerant after the compression is sent to condenser 5.
The secondary suction pipe of the press part 350 outer lubricant oil liquid level tops that are contained in shell 1 inside that are exposed at.
The lubricant oil of the upper and lower part of press part is not separated from each other, but is interconnected by groove 3g.Groove 3g vertically is formed on compression cylinder 310 and main bearing 300 and expansion oplate and holds concurrently on the outer peripheral surface of compressed board 340.
Gear type bulge 4 comprises that expansion oplate is held concurrently compressed board 340, expansion cylinder 410, outer gear 420, internal gear 430, the supplementary bearing 440 that is connected with the running shaft of motor is formed.Annular expansion cylinder 410 is arranged on the expansion oplate below of compressed board 340 of holding concurrently, and is attached thereto.Outer gear 420 rotatably is arranged on the inner space of expansion cylinder 410, and the internal gear 430 that is rotated from motor reception power is arranged on outer gear 420 inboards, and meshes with outer gear 420, and refrigerant is expanded.Supplementary bearing 440 is arranged on the below of expansion cylinder 410, and is attached thereto.
Be positioned on outer gear 420 outer peripheral surfaces of expansion cylinder 410 inboards, form a plurality of vertical bar shape oil groove 420g.The length direction of oil groove 420g is vertical with outer gear 420 outer peripheral surfaces, and is consistent with the running shaft direction.
A plurality of oil groove 420g are formed on the outer peripheral surface of outer gear 420 across certain intervals by circumferencial direction.
Oil groove 420g can be connected the upper side or the bottom surfaces of outer gear 420, but in order to prevent coolant leakage, preferably avoids being connected with the upper side or the bottom surfaces of outer gear 420.
Side at supplementary bearing 440 is provided with bulge suction pipe 450, is used for the refrigerant that flows through condenser 5 is drawn into expansion cylinder 410 inboards.At the opposite side of supplementary bearing 440, bulge discharge tube 460 is set, be used for the refrigerant after expanding is sent to vaporizer 6.
On main bearing 300, be provided with suction port 300a.On expansion oplate is held concurrently compressed board 340, be provided with exhaust port 340a.On the certain position of supplementary bearing 440, form suction port 440a and exhaust port 440b respectively.The boundary dimension of bulge 4 and gear size are littler than the boundary dimension of press part 3.The boundary dimension of supplementary bearing 440 and expansion cylinder 410 is advisable for a short time than the hold concurrently boundary dimension of compressed board 340 of main bearing 300 and compression cylinder 310 and expansion oplate.Thereby, on the compressed board 340 of gear type press part 3, connect press part discharge tube 360 easily.
Why the boundary dimension of gear type bulge 4 is designed to forr a short time than the boundary dimension of press part, its reason is because the gear size of bulge 4 is littler than press part 3 side gear sizes.This is that the refrigerant that flows in the press part 3 by suction port 300a has littler density because compare with the refrigerant that flows into bulge 4 by suction port 440a, and the refrigerant volume when identical in quality in the press part is bigger.Thereby for the mass flow rate that makes inflation process and compression process is identical, the working volume that need make inflation process is less than the working volume in the compression process.Therefore, the gear size of bulge 4 is littler than the gear size of press part 3.
But the difference between the gear size is directly not related with the boundary dimension difference between compression cylinder 310 and the expansion cylinder 410.
Below,, to Fig. 6 the compressor effect among the present invention is described with reference to Fig. 3.
To shown in Figure 6,, in gear type press part 3, carry out the compression of refrigerant as Fig. 3 along with the work of motor 2.Compressed refrigerant flows in the condenser 5 by path in press part 3, and when flowing through condenser 5, outwards emits heat.
Flow through the refrigerant behind the condenser 5, flow in the compressor bulge 4 among the present invention, expand when refrigerant flows through bulge 4 by path.
The refrigerant that flows through behind the bulge 4 flows in the vaporizer 6, when refrigerant flows through vaporizer 6, absorbs heat from the outside.
After flowing through vaporizer 6, refrigerant flows in the press part 3 again.Carry out this circulating repeatedly, form refrigerating circuit.
With reference to Fig. 3, in refrigerating circuit, the process to compressor provided by the invention compresses and expands refrigerant is elaborated.
At first, be installed on the motor of shell 1 inwall and connect power supply, make between stator 200 and the rotor 210 and produce electromagnetic action, rotor 210 is rotated.At this moment, flow to refrigerant by the suction pipe 100 that is arranged on shell 1 upper end portion to shell 1 inside.
The refrigerant that flows to shell 1 inside flows to the inner space of outer gear 320 by being connected the secondary suction pipe 350 on the main bearing 300.At this moment, flow through the refrigerant of the secondary suction pipe 350 of press part,, flow to the inner space of outer gear 320 by the suction port 300a of the main bearing 300 that is communicated with outer gear 320 inner spaces.
After flowing to the inner space of outer gear 320, refrigerant is gradually reduced under internal gear 330 turning efforts that combine with motor shaft 220, flow through afterwards and be formed on hold concurrently exhaust port 340a on the compressed board 340 of expansion oplate, flow out by the press part discharge tube 360 that is connected with exhaust port 340a, be sent to condenser 5.Here, the exhaust port 340a area of press part 3 is littler than suction port 300a.
In condenser 5, carry out the refrigerant after the heat exchange, flow to again in the compressor gear type bulge 4 provided by the invention.Carry out the refrigerant after the heat exchange in condenser 5, flow through the bulge suction pipe 450 that is connected supplementary bearing 440 1 sides, the suction port 440a by supplementary bearing 440 flows to outer gear 420 inner spaces.After refrigerant flows to said external gear 420 inner spaces, under internal gear 430 turning efforts that combine with motor shaft 220, expand gradually.Afterwards, be discharged from, flow through the discharge tube 460 that is connected exhaust port 440b, flow to vaporizer by the exhaust port 440b that is formed on supplementary bearing 440 opposite sides.
The exhaust port 440b area of bulge 4 is bigger than suction port 440a area.
Identical with the situation in the foregoing description, gear type press part 3 and gear type bulge 4 preferably are arranged on same shell 1 inside, but also can be separately positioned in the different shell 1.Motor 2 also can be arranged on shell 1 outside, can adopt any drive unit as long as can produce power.
In addition, Fig. 4 A is the I-I sectional view of Fig. 3, shows the internal gear 330 of composition press part 3 and the form on the outer gear 320 geometry meanings.
The teeth groove 320a quantity of outer gear 320 is bigger than the quantity of internal gear 330 tooth top 330a, is positioned at eccentric position with motor shaft 220 internal gear 330 rotating centers that are rotated that combine, and the rotating center of outer gear 320 also is positioned at eccentric position.
Usually, the number of internal gear 330 tooth top 330a is lacked than the number of outer gear 320 teeth groove 320a, and tooth top has slick and sly curved shape and is advisable.
Fig. 4 B is the II-II sectional drawing of Fig. 3, shows the internal gear 430 of composition bulge 4 and the form on the outer gear 420 geometry meanings.The internal gear 430 of bulge 4 is identical with the outer gear structure with the internal gear of press part 3 with outer gear 420 structures, just varies in size.
Compare with the compressor with other structures, the moment variations amount that produces during compressor compresses refrigerant provided by the invention is very little.
Compressor provided by the invention is compared with reciprocal compressor, and the moment variations amount is very little.
When gear type compressor compresses provided by the invention and expansion refrigerant, internal gear 330,430 and outer gear 320,420 are rotated together, the equilibrium on the holding torque, thus vibration and noise are lower.
In the gear type compressor provided by the invention, a plurality of tooth top 330a, the 430a of internal gear 330,430 and a plurality of teeth groove 320a, the 420a of outer gear 320,420 engagement can prevent that the power that internal gear transmits to outer gear from concentrating on certain a bit.
In the gear type compressor provided by the invention, the speed difference between teeth groove 320a, the 420a of tooth top 330a, the 430a of internal gear 330,430 and outer gear 320,420 on contact points is very little.
Gear type compressor provided by the invention can use as refrigerant with carbon dioxide.Carbon dioxide is as refrigerant, and its spreadable life is long, and does not have toxicity, and has the non-combustible characteristics.And price is lower, and aboundresources does not have the necessity that reclaims.Carbon dioxide is dissolved in the lubricant oil easily, and refrigerating capacity is 5 times of per unit volume CFC series R-22.Therefore, when carrying out the refrigeration of same power, its working volume is very little, and compression ratio is also very little.
Gear type compressor provided by the invention can give full play to above-mentioned advantage by adopting carbon dioxide as refrigerant.
In the gear type compressor provided by the invention, form on the compression cylinder 310 and the surface of contact between its inboard outer gear 320 of press part 3, and produce the friction that relative movement brings on the expansion cylinder 410 of composition bulge 4 and the surface of contact between its inboard outer gear 420, kinetic energy rejection takes place.
As shown in Figure 5, externally on the outer peripheral surface of gear 320,420, form a plurality of oil groove 320g, 420g with vertical line state.Lubricant oil is in refrigerant flows into oil groove 320g, the 420g that rests on outer gear 320,420 outer peripheral surfaces.When outer gear 320,420 was rotated, the lubricant oil in oil groove 320g, the 420g externally under the turning effort of gear, was diffused in the whole surface of surface of contact, reduces the friction between each cylinder 310,410 and the outer gear 320,420, reduces mechanical wear.
Above-mentioned oil groove 320g, 420g can be connected the upper side or the bottom surfaces of outer gear, but in order to prevent coolant leakage, preferably avoid being connected with the upper side or the bottom surfaces of outer gear.The oil groove 320g, the 420g that are located on each outer gear 320,420 outer peripheral surface can have saw-toothed shape or bellows-shaped or spiral-shaped.Forming on the basis of oil groove 320g, 420g on each outer gear 320,420 outer peripheral surface, can in compression cylinder 310, set up oil supply hole 310h, improve lubricant oil inflow amount.
Shown in amplified the part of Fig. 4 A, the flow velocity of lubricant oil 220 was very fast on outer gear 320 outer peripheral surfaces of rotation, and oil supply hole 310h outlet side lubricant oil 220 velocity ratios of compression cylinder 310 are lower.Under the effect of speed difference, the lubricant oil 220 in compression cylinder 310 outsides can be by the lasting slit that flows between compression cylinder 310 and the outer gear 320 of oil supply hole 310h.
In like manner, also flow to lubricant oil 220 between expansion cylinder 410 and its inboard outer gear 420, the lowest water level of lubricant oil 220 is top side location of compression cylinder 310.
Be located at oil supply hole 310h, the 410h of compression cylinder 310 or expansion cylinder 410 body interior by radial direction, the outside of its radial direction can be higher than inboard, can have leaning structure.
In this case, beyond the speed difference around the outer gear 320,420, potential energy difference between the outlet of oil supply hole 310h, 410h and the inlet allows lubricant oil flow to surface of contact between each outer gear 320,420 and the cylinder 310,410 more swimmingly also to the mobile generation effect of lubricant oil.
In addition, in the gear type compressor provided by the invention, expansion oplate and compressed board are same parts, therefore can reduce component number and simplify assembling procedure.
Claims (6)
1, a kind of gear type compressor, include compressor body, motor is characterized in that: this structure also comprise gear type press part that the driving force of utilizing motor is compressed the refrigerant that flows to from vaporizer and flow out from compressor and the condenser of flowing through after the gear type bulge that expands of the refrigerant that flows into again;
Described gear type press part includes the main bearing of fixedlying connected with the running shaft of motor, compression cylinder, the outer gear of press part, the internal gear of press part and the expansion oplate compressed board of holding concurrently, main bearing is fixed on the below of motor, compression cylinder is connected with main bearing and is provided with thereunder, outer gear rotatably is arranged on the inner space of compression cylinder, the internal gear that is rotated from electric machine rotational axis reception power is arranged on the outer gear inboard, and with outer gear engagement and compression refrigerant, the expansion oplate compressed board of holding concurrently is connected with compression cylinder and is provided with thereunder;
Described gear type bulge includes expansion oplate the hold concurrently internal gear of outer gear, bulge of compressed board, expansion cylinder, bulge and the supplementary bearing of fixedlying connected with the running shaft of motor, described expansion cylinder be arranged on expansion oplate hold concurrently compressed board the below and be attached thereto, outer gear rotatably is arranged on the inner space of expansion cylinder, the internal gear that is rotated from electric machine rotational axis reception power is arranged on the outer gear inboard, and with outer gear engagement and refrigerant is expanded, supplementary bearing is arranged on the below of expansion cylinder and is attached thereto.
2, gear type compressor according to claim 1, it is characterized in that: a vertical bar shape oil groove is set respectively on the outer gear outer peripheral surface of described press part and bulge at least, the length direction of oil groove is vertical with the outer peripheral surface of outer gear, and is parallel with the running shaft direction of motor.
3, gear type compressor according to claim 1 is characterized in that: the oil groove that is located at respectively on the outer gear outer peripheral surface of press part and bulge has saw-toothed shape.
4, gear type compressor according to claim 1 is characterized in that: the oil groove that is located at respectively on the outer gear outer peripheral surface of press part and bulge has bellows-shaped.
5, gear type compressor according to claim 1 is characterized in that: the oil groove that is located at respectively on the outer gear outer peripheral surface of press part and bulge has spiral-shaped.
6, gear type compressor according to claim 1, it is characterized in that: the body interior at compression cylinder and expansion cylinder is provided with oil supply hole by radial direction respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100194018A CN100432437C (en) | 2004-05-27 | 2004-05-27 | Gear type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100194018A CN100432437C (en) | 2004-05-27 | 2004-05-27 | Gear type compressor |
Publications (2)
| Publication Number | Publication Date |
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| CN1704600A CN1704600A (en) | 2005-12-07 |
| CN100432437C true CN100432437C (en) | 2008-11-12 |
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| CNB2004100194018A Expired - Fee Related CN100432437C (en) | 2004-05-27 | 2004-05-27 | Gear type compressor |
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| CN108916047A (en) * | 2018-09-14 | 2018-11-30 | 安徽达来电机有限公司 | A kind of two impeller shafts and associated gear of Anti-dislocation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2076059A (en) * | 1980-05-09 | 1981-11-25 | Sargent Welch Scientific Co | Gerotor Pump |
| JPS6073077A (en) * | 1983-09-28 | 1985-04-25 | Mikuni Jukogyo Kk | Gear rotating device |
| US4519755A (en) * | 1980-05-09 | 1985-05-28 | Sargent-Welch Scientific Company | Gerotor vacuum pump |
| CN1172910A (en) * | 1996-07-23 | 1998-02-11 | 东芝株式会社 | Fluid machinery |
| WO2001096743A1 (en) * | 2000-05-30 | 2001-12-20 | Wang, Yang | Gear rotor compressor |
| CN1338574A (en) * | 2000-05-30 | 2002-03-06 | 郁永章 | Compressor with gear-type rotor |
| JP2003138901A (en) * | 2001-10-31 | 2003-05-14 | Daikin Ind Ltd | Fluid machinery |
| CN2599283Y (en) * | 2000-05-30 | 2004-01-14 | 郁永章 | Geared rotor compressor |
-
2004
- 2004-05-27 CN CNB2004100194018A patent/CN100432437C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2076059A (en) * | 1980-05-09 | 1981-11-25 | Sargent Welch Scientific Co | Gerotor Pump |
| US4519755A (en) * | 1980-05-09 | 1985-05-28 | Sargent-Welch Scientific Company | Gerotor vacuum pump |
| JPS6073077A (en) * | 1983-09-28 | 1985-04-25 | Mikuni Jukogyo Kk | Gear rotating device |
| CN1172910A (en) * | 1996-07-23 | 1998-02-11 | 东芝株式会社 | Fluid machinery |
| WO2001096743A1 (en) * | 2000-05-30 | 2001-12-20 | Wang, Yang | Gear rotor compressor |
| CN1338574A (en) * | 2000-05-30 | 2002-03-06 | 郁永章 | Compressor with gear-type rotor |
| CN2599283Y (en) * | 2000-05-30 | 2004-01-14 | 郁永章 | Geared rotor compressor |
| JP2003138901A (en) * | 2001-10-31 | 2003-05-14 | Daikin Ind Ltd | Fluid machinery |
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|---|---|
| CN1704600A (en) | 2005-12-07 |
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Granted publication date: 20081112 |