CN104005930A - Swash plate compressor - Google Patents
Swash plate compressor Download PDFInfo
- Publication number
- CN104005930A CN104005930A CN201410064477.6A CN201410064477A CN104005930A CN 104005930 A CN104005930 A CN 104005930A CN 201410064477 A CN201410064477 A CN 201410064477A CN 104005930 A CN104005930 A CN 104005930A
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- Prior art keywords
- thrust
- bearing
- cylinder body
- piston
- live axle
- Prior art date
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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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/141—Details or component parts
- F04B1/146—Swash plates; Actuating elements
- F04B1/148—Bearings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
- F04B27/1054—Actuating elements
- F04B27/1063—Actuating-element bearing means or driving-axis bearing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
- F04B27/1081—Casings, housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B27/12—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having plural sets of cylinders or pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
A swash plate type compressor includes a drive shaft, a swash plate, a piston, a cylinder block, a housing, a cylinder bore, a compression chamber, suction and discharge chambers and first and second thrust bearings. The cylinder bore is formed in the cylinder block and receiving therein the piston engaged with the swash plate mounted on the drive shaft. The compression chamber is defined in the cylinder bore by the piston so as to be communicable with the suction and the discharge chambers formed in the housing. The first and the second thrust bearings are disposed on opposite sides of the swash plate. The drive shaft extends through the cylinder block and supported in a thrust direction by the first and the second thrust bearings, and either one of the first and the second thrust bearings is disposed outside the cylinder block and between the housing and the drive shaft.
Description
Technical field
The present invention relates to a kind of tilted-plate compressor (swash plate compressor).
Background technique
Japanese Patent Application Publication No.7-197883 discloses a kind of tilted-plate compressor.This tilted-plate compressor comprises the first cylinder body, the second cylinder body, front casing, rear casing, live axle, swash plate and a plurality of piston.
Axis around live axle in the first cylinder body has formed a plurality of the first cylinder thoraxes with the angle intervals of being scheduled to.Axis around live axle in the second cylinder body is formed with the second cylinder thorax identical with the first cylinder thorax quantity in the corresponding corresponding position of cylinder thorax with the first cylinder body.Between the first cylinder body and the second cylinder body, be formed with crank chamber.Each first cylinder thorax is communicated with by its corresponding the second cylinder thorax of crank chamber.Every a pair of the first cylinder thorax and the second cylinder thorax have formed a cylinder thorax.Cylinder thorax comprises the first cylinder thorax on the front side that is formed on cylinder body and is formed on the second cylinder thorax on the rear side of cylinder body.
Each piston is included in the first cylinder thorax reciprocating first piston head and reciprocating the second piston head in the second cylinder thorax.First piston head is inserted in the first cylinder thorax and by the first piston head in the first cylinder thorax and defines the first pressing chamber.The second piston head is inserted in the second cylinder thorax and by the second piston head in the second cylinder thorax and defines the second pressing chamber.Each piston engages with swash plate by a pair of sliding shoes (shoe) and the to-and-fro motion in its corresponding cylinder thorax along with the rotation of swash plate.
Front casing is connected to the front end of the first cylinder body.Between front casing and the first cylinder body, maintain the first valve cell.Between front casing and the first valve cell, be formed with the first suction chamber and the first drain chamber.The first suction chamber and the first drain chamber are communicated with the first pressing chamber respectively.
Rear casing is connected to the rear end of the second cylinder body.Between rear casing and the second cylinder body, maintain second valve unit.Between rear casing and second valve unit, be formed with the second suction chamber and the second drain chamber is communicated with respectively the second suction chamber and the second drain chamber with the second pressing chamber.
Live axle is arranged to extend through front casing, the first cylinder body and the second cylinder body.Swash plate is arranged on live axle for rotating in crank chamber together with live axle.
In tilted-plate compressor, between the first cylinder body and swash plate, be provided with the first thrust-bearing, and between the second cylinder body and swash plate, be provided with the second thrust-bearing.The first thrust-bearing and the second thrust-bearing are arranged in the relative side of swash plate of crank chamber.The live axle that extends through front casing, the first cylinder body and the second cylinder body is supported along thrust direction by the first thrust-bearing and the second thrust-bearing.According to this compressor, by the first thrust-bearing and the second thrust-bearing, come reception sources from following both thrust: during the induction stroke at piston, to be applied to the suction reaction force of piston and the compression reaction force that is applied to piston during piston compression stroke.
In order to improve the simple and easy degree that above-mentioned compressor is installed in vehicle, need to improve compressor in the degrees of freedom of design aspect, such as weight reduction in the compressor discharge capacity keeping expectation.Meanwhile, the tilted-plate compressor of fixed displacement need to be by adopting the bearing---such as the first thrust-bearing and second thrust-bearing---of preliminary dimension to guarantee specific intensity.
In the double end tilted-plate compressor of above-mentioned routine, the first thrust-bearing and the second thrust-bearing between the fore head and occiput of respective pistons, that is, in the inner side of piston, make the axial length of piston tend to increase in crank chamber.In this case, for tilted-plate compressor, be difficult to reduce its weight and size.Therefore,, owing to there is bearing between the fore head in respective pistons and occiput, inevitably can increase the size of tilted-plate compressor.
The problem of tilted-plate compressor with the live axle of large axial length is, the intensity of the opposing distortion of live axle can be reduced.Need to increase the thickness of compressor case to guarantee the intensity of live axle, this has further increased size and the weight of swash plate compressor.Therefore, swash plate compressor is difficult to reduce its weight and size.
In tilted-plate compressor, wherein, be positioned at the outside of the first thrust-bearing and the second thrust-bearing piston radial, the axial length that shortens piston in the volume that keeps cylinder thorax will make shell radially be increased.In this case, tilted-plate compressor is difficult to reduce its weight and size.Reduce to cause tilted-plate compressor can not keep discharge capacity the volume of cylinder thorax.
The present invention aims to provide a kind of tilted-plate compressor, and this tilted-plate compressor has guaranteed that the height degrees of freedom of design aspect is to keep the discharge capacity of expectation and to keep realizing reducing of weight aspect in the intensity of tilted-plate compressor for discharge capacity.
Summary of the invention
According to the present invention, tilted-plate compressor comprises live axle, swash plate, piston, cylinder body, shell, cylinder thorax, pressing chamber, suction chamber, drain chamber, the first thrust-bearing and the second thrust-bearing.Swash plate is arranged on live axle for rotating together with live axle.Piston engages with swash plate.The accommodating swash plate of cylinder body.Shell is connected to cylinder body.Cylinder thorax is formed in cylinder body and in cylinder thorax and receives piston.Pressing chamber is limited in cylinder thorax by piston.Suction chamber is formed in shell and makes it possible to be communicated with pressing chamber.Drain chamber is formed in shell and makes it possible to be communicated with pressing chamber.The first thrust-bearing and the second thrust-bearing are arranged on the opposite side of swash plate.Live axle extends through cylinder body and is supported along thrust direction by the first thrust-bearing and the second thrust-bearing, and in the first thrust-bearing and the second thrust-bearing at least any one is arranged on cylinder body outside and between shell and live axle.
In conjunction with the accompanying drawing of the principle by the invention shown in example, according to following description, other aspects of invention and advantage will become obvious.
Accompanying drawing explanation
With reference to current following description preferred embodiment, together with reference to accompanying drawing, can understand best the present invention and object and advantage, in the accompanying drawings:
Fig. 1 is the longitdinal cross-section diagram showing according to the fixed displacement double-headed piston type swash plate compressor of the preferred embodiment of the present invention.
Embodiment
Below with reference to Fig. 1, preferred implementation is described.Fixed displacement double-headed piston type swash plate compressor (hereinafter referred to as " compressor ") shown in Figure 1 is designed to be arranged on vehicle and has formed a part for the refrigerant circuit using in vehicle air conditioning.
With reference to Fig. 1, compressor comprises shell 1, the first cylinder body 17, the second cylinder body 19, live axle 3, swash plate 5, a plurality of piston 7, the first thrust-bearing 9 and the second thrust-bearing 11.The first cylinder body 17 and the second cylinder body 19 are corresponding to cylinder body of the present invention.
The first cylinder body 17 therein and on its front side, be formed with the first axis hole 17B that a plurality of the first cylinder thorax 17A and live axle 3 are inserted through.The first cylinder thorax 17A is around the first axis hole 17B formation and be parallel to the first axis hole 17B and spaced apart with equal angles.The first sliding bearing 31A is arranged in the first axis hole 17B.The first suction passage 33A forms along the axial direction of live axle 3 and extends through the first cylinder body 17.In the first cylinder body 17, be formed with the first retainer (not shown) to limit the lifting of the first inhalation reed valve 21A describing after a while.
The second cylinder body 19 is arranged on the rear of the first cylinder body 17.The second cylinder body 19 is formed with therein the second cylinder thorax 19A identical with the quantity of the first cylinder thorax 17A and is formed with the second axis hole 19B that live axle 3 is inserted through.The second cylinder thorax 19A is around the second axis hole 19B formation and be parallel to the second axis hole 19B and spaced apart with equal angles.The second sliding bearing 31B is arranged on the second axis hole 19B.The second suction passage 33B forms along the axial direction of live axle 3 and extends through the second cylinder body 19.In the second cylinder body 19, be formed with the second retainer (not shown) to limit the lifting of the second inhalation reed valve 23A describing after a while.Cylinder thorax comprises the first cylinder thorax on the front side that is formed on cylinder body and is formed on the second cylinder thorax on the rear side of cylinder body.
Shell 1 comprises front casing 13 and rear casing 15.
Front casing 13 is formed with the boss 13A extending forward.Boss 13A is formed with axis hole 13B therein.In axis hole 13B, be provided with shaft sealer 25 to seal between live axle 3 and front casing 13.
In front casing 13, in angled mode, be formed with the first suction chamber 27A and the first drain chamber 29A.The first suction chamber 27A radially inwardly forms from the first drain chamber 29A.
Front casing 13 has the first support 13C extending in the first suction chamber 27A.The first support 13C has recessed annular the first pressure received block 13D at its far-end.
In rear casing 15, in angled mode, be formed with the second suction chamber 27B and the second drain chamber 29B.The second suction chamber 27B radially inwardly forms from the second drain chamber 29B.The first suction chamber 27A and the second suction chamber 27B coordinate to serve as suction chamber of the present invention.
Rear casing 15 is included in the second support 15A extending in the second suction chamber 27B.The second support 15A has recessed annular the second pressure received block 15B at its far-end.
Front casing 13 and rear casing 15 tighten together by a plurality of bolt (not shown), make it possible to the first cylinder body 17 and the second cylinder body 19 to remain between front casing 13 and rear casing 15.Front casing 13 is fixed to the front end of the first cylinder body 17.Front casing 13 and the first cylinder body 17 are connected to each other by the first valve cell 21 remaining between front casing 13 and the first cylinder body 17.Rear casing 15 is connected to the rear end of the second cylinder body 19.Rear casing 15 and the second cylinder body 19 are connected to each other by the second valve unit 23 remaining between rear casing 15 and the second cylinder body 19.
By front casing 13, the first cylinder body 17, the second cylinder body 19 and rear casing 15 are linked together, crank chamber 35 is formed between the first cylinder body 17 and the second cylinder body 19.The first cylinder body 17 and the second cylinder body 19 are equipped with swash plate 5 therein.Crank chamber 35 is communicated with the first suction chamber 27A by the first suction passage 33A and is communicated with the second suction chamber 27B by the second suction chamber 33B.
The first valve cell 21 comprises that the first valve plate 37A, first sucks valve plate 21E, the first discharge valve plate 21F and the first retainer plate 39A.
First suction port 21C and the first floss hole 21D identical with the first cylinder thorax 17A quantity form through the first valve plate 37A.First sucks valve plate 21E is formed with a plurality of the first inhalation reed valve 21A.The first inhalation reed valve 21A is configured to open and close the first suction port 21C.A plurality of the first discharge reed valve 21B form through the first discharge valve plate 21F.The first discharge reed valve 21B is configured to open and close the first floss hole 21D.The first retainer plate 39A has limited the lifting of the first discharge reed valve 21B.
Second valve unit 23 comprises that the second valve plate 37B, second sucks valve plate 23E, the second discharge valve plate 23F and the second retainer plate 39B.
Second suction port 23C and the second floss hole 23D identical with the second cylinder thorax 19A quantity form through the second valve plate 37B.Second sucks valve plate 23E is formed with a plurality of the second inhalation reed valve 23A.The second inhalation reed valve 23A is configured to open and close the second suction port 23C.The second discharge valve plate 23F is formed with a plurality of the second discharge reed valve 23B.The second discharge reed valve 23B is configured to open and close the second floss hole 23D.The second retainer plate 39B has limited the lifting of the second discharge reed valve 23B.
Live axle 3 comprises and has formed the anterior the first axle part 3A of live axle 3, the second axle part 3B at rear portion that has formed live axle 3 and the 3rd axial region 3C between the first axle part 3A and the second axle part 3B.On the front end of the first axle part 3A, be formed with screw thread 3D.Belt pulley (not shown) and magnetic clutch (not shown) are connected to screw thread 3D.
The first axle part 3A has the diameter identical with the diameter of the second axle part 3B.The 3rd axial region 3C has the large diameter of diameter than the first axle part 3A and the second axle part 3B.Between the first axle part 3A and the 3rd axial region 3C, or at the front end place of the 3rd axial region 3C, be formed with annular the 3rd pressure received block 3E.Between the second axle part 3B and the 3rd axial region 3C, or be formed with annular the 4th pressure received block 3F in the rear end of the 3rd axial region 3C.
Live axle 3 extends through front casing 13, the first cylinder body 17 and the second cylinder body 19 and in rear casing 15.Live axle 3 is inserted through the first axis hole 17B and the second axis hole 19B being respectively formed in the first cylinder body 17 and the second cylinder body 19.The front end of the first axle part 3A is positioned in axis hole 13B, and the rear end of the first axle part 3A and the 3rd pressure received block 3E are positioned in the first suction chamber 27A.The second axle part 3B and the 4th pressure received block 3F are positioned in the second suction chamber 27B.The 3rd axial region 3C is supported in the mode that can rotate by the first sliding bearing 31A and the second sliding bearing 31B.Live axle 3 is actuated to rotate about spin axis O by the power being transmitted by belt pulley and magnetic clutch.
Swash plate 5 has annular shape.Swash plate 5 comprises the boss 5A that formation is located in the central.Hole 5B forms through boss 5A.The 3rd axial region 3C of live axle 3 is pressed equipped by hole 5B, therefore, swash plate 5 is connected to live axle 3.Therefore, swash plate 5 can rotate along with the rotation of live axle 3 in crank chamber 35.
Piston 7 comprises first piston head 7A, the second piston head 7B and the intermediate portion 7C that first piston head 7A is connected with the second piston head 7B.First piston head 7A and the second piston head 7B are respectively formed on the front side and rear side of piston 7.The first cylinder thorax 17A receives the first piston head 7A of piston 7 for to-and-fro motion in the first cylinder thorax 17A therein, and first piston head 7A defines the first pressing chamber 41A in the first cylinder thorax 17A.The first pressing chamber 41A is formed between the first cylinder thorax 17A and first piston head 7A.The first pressing chamber 41A is communicated with the first suction chamber 27A by the first suction port 21C and is communicated with the first drain chamber 29A by the first floss hole 21D.
The second piston head 7B is formed on the rear of intermediate portion 7C.The second cylinder thorax 19A receives the second piston head 7B therein for to-and-fro motion in the second cylinder thorax 19A.The second piston head 7B defines the second pressing chamber 41B in the second cylinder thorax 19A.The second pressing chamber 41B is formed between the second cylinder thorax 19A and the second piston head 7B.The second pressing chamber 41B is communicated with the second suction chamber 27B by the second suction port 23C and is communicated with the second drain chamber 29B by the second floss hole 23D.
Centre at the intermediate portion 7C of piston 7 is formed with recess 7D.In recess 7D, be provided with a pair of hemisphere sliding shoes 43A, 43B.Piston 7 engages with swash plate 5 by sliding shoes 43A, 43B.
In this compressor, piston 7 is the tilt angle to-and-fro motion in the first cylinder thorax 17A and the second cylinder thorax 19A with respect to the hypothesis orthogonal plane with spin axis O quadrature according to swash plate 5.Swash plate 5 be rotated in the to-and-fro motion that converts in the prior art manner known piston 7 in its first cylinder thorax 17A being associated and the second cylinder thorax 19A to.The T1 of the top dead center of first piston head 7A in the first pressing chamber 41A in Fig. 1 indicates, and will be called as the first top dead center.The top dead center of the second piston head 7B in the second pressing chamber 41B indicated by T2, and will be called as the second top dead center.
The first thrust-bearing 9 is roller thrust bearing, and this roller thrust bearing comprises the first seat ring 9A and the second seat ring 9B, remains on roller 9C and the first retainer (not shown) between the first seat ring 9A and the second seat ring 9B.Hole 9D forms by the central authorities of the first seat ring 9A.Hole 9E forms by the central authorities of the second seat ring 9B.
The first thrust-bearing 9 is arranged on the position adjacent with live axle 3 in front casing 13.Particularly, the position between the 3rd pressure received block 3E of the first pressure received block 13D that the first thrust-bearing 9 is arranged at front casing 13 in the first suction chamber 27A and the 3rd axial region 3C of live axle 3.Therefore, the first thrust-bearing 9 be positioned at first piston head 7A top dead center T1 the place ahead and in the outside of the first cylinder body 17.More specifically, the first thrust-bearing 9 is provided with: the first seat ring 9A, and this first seat ring 9A contacts with the 3rd pressure received block 3E in all sides within it; With the second seat ring 9B, this second seat ring 9B contacts with the first pressure received block 13D on its outer circumferential side, and contacts with shaft sealer 25.The first seat ring 9A contacts with the 3rd pressure received block 3E in the region in all sides within it, and the interior perimembranous of the first seat ring 9A can be flexibly out of shape towards the second seat ring 9B by being applied to the thrust of the first seat ring 9A.The first seat ring 9A of the first thrust-bearing 9 serves as damping device of the present invention.
The second thrust-bearing 11 is roller thrust bearing, and this roller thrust bearing comprises the first seat ring 11A and the second seat ring 11B, remains on roller 11C and the second retainer (not shown) between the first seat ring 11A and the second seat ring 11B.Hole 11D forms by the central authorities of the first seat ring 11A.Hole 11E forms by the central authorities of the second seat ring 11B.
The second thrust-bearing 11 is adjacent to be arranged in rear casing 15 with live axle 3.Particularly, the position between the 4th pressure received block 3F of the second pressure received block 15B that the second thrust-bearing 11 is arranged at rear casing 15 in the second suction chamber 27B and the 3rd axial region 3C of live axle 3.Therefore, the second thrust-bearing 11 be positioned at the second piston head 7B top dead center T2 rear and in the outside of the second cylinder body 19.More specifically, the second thrust-bearing 11 is provided with: the first seat ring 11A, and this first seat ring 11A contacts with the 4th pressure received block 3F in all sides within it; With the second seat ring 11B, this second seat ring 11B contacts with the second pressure received block 15B.The first seat ring 11A contacts with the 4th pressure received block 3F in the region in all sides within it, and the interior perimembranous of the first seat ring 11A can be flexibly out of shape towards the second seat ring 11B by being applied to the thrust of the first seat ring 11A.The first seat ring 11A of the second thrust-bearing 11 also serves as damping device of the present invention.Therefore, at least one in the first thrust-bearing and the second thrust-bearing serves as damping device, and this damping device and shell 1 and live axle 3 one are used from by making the first thrust-bearing and the distortion of the second thrust-bearing receive thrust.
Be separately positioned on the first suction chamber 27A and the first thrust-bearing 9 in the second suction chamber 27B and the second thrust-bearing 11 respectively front casing 13 with in rear casing 15, be positioned in the relative side of swash plate 5.Can suitably determine the size of the first thrust-bearing 9 and the second thrust-bearing 11 according to the thrust that is applied to piston 7.
The first drain chamber 29A and the second drain chamber 29B have formed the single drain chamber (not shown) that is connected to condenser.Condenser is connected to vaporizer by expansion valve.Vaporizer is connected to crank chamber 35.Crank chamber 35 is communicated with the first suction chamber 27A and the second suction chamber 27B by the first suction passage 33A and the second suction passage 33B respectively.Compressor, condenser, expansion valve and vaporizer coordinate to form refrigerant circuit.Not shown condenser, expansion valve and vaporizer in the accompanying drawings.
When the live axle 3 of above-described compressor is actuated to rotate via belt pulley and magnetic clutch by vehicle motor or motor, piston 7 in the first cylinder thorax 17A and the second cylinder thorax 19A to-and-fro motion by the determined length of stroke in angle of inclination of swash plate 5.Therefore, in flow of refrigerant to the first pressing chamber 41A in the first suction chamber 27A and the second suction chamber 27B and the second pressing chamber 41B, for compressing therein, and the refrigeration agent compressing in the first pressing chamber 41A and the second pressing chamber 41B is pushed out this first pressing chamber 41A and the second pressing chamber 41B and enters in the first drain chamber 29A and the second drain chamber 29B.By the first thrust-bearing 9 and the second thrust-bearing 11, come reception sources from following both thrust: piston 7 is the compression reaction force during its compression stroke at the suction reaction force during its induction stroke and piston 7.
The first thrust-bearing 9 and the second thrust-bearing 11 are arranged in the first suction chamber 27A and the second suction chamber 27B respectively on the relative outside of front casing 13 and the first cylinder body 17 in rear casing 15 and the second cylinder body 19.The first thrust-bearing 9 is positioned at the outside of the first cylinder body 17 and on the front side of compressor.The second thrust-bearing 11 is positioned at the outside of the second cylinder body 19 and on the rear side of compressor.Therefore, the first thrust-bearing 9 and the second thrust-bearing 11 are positioned at the outside of cylinder body and between shell 1 and live axle 3.Therefore, the first thrust-bearing 9 is positioned on the relative outside of crank chamber 35 with the second thrust-bearing 11.The first thrust-bearing 9 and the second thrust-bearing 11 are positioned at respectively on the outside of crank chamber 35.In other words, the first thrust-bearing 9 and the second thrust-bearing 11 are positioned at the outside of piston 7.
Use has enough large any size can not increase the axial length of piston 7 to guarantee the first thrust-bearing 9 and second thrust-bearing 11 of intensity, because can prevent the increase of the axial length of intermediate portion 7C.Therefore, can reduce the axial length of the first cylinder body 17 and the second cylinder body 19.
The compressor of preferred implementation can be easy to restriction about the shape of piston 7 and live axle 3.Because do not provide the thrust-bearing contacting with the boss 5A of swash plate 5, the size that can dwindle boss 5A.
Because piston 7 can reduce its axial length, can dwindle the size of crank chamber 35, therefore, compressor can be made for less aspect size.Therefore, compressor can be guaranteed to torsion proof high strength.
At design compressor, when reducing its size, the first cylinder thorax 17A and the second cylinder thorax 19A do not need to reduce volume.In this double end tilted-plate compressor, wherein, refrigerant gas is compressed in the first pressing chamber 41A and the second pressing chamber 41B, and the size by compresses machine is by not too large the discharge capacity that affects compressor.
According to the compressor of preferred implementation, can guarantee the height degrees of freedom at design aspect, this has allowed to realize reducing of weight aspect when keeping the expectation discharge capacity of compressor and keeping compressor for the required intensity of this discharge capacity.
The first seat ring 9A and the second seat ring 11A of the first thrust-bearing 9 and the second thrust-bearing 11 can flexibly be out of shape, this is flexibly out of shape permission the first thrust-bearing 9 and the second thrust-bearing 11 is received in the thrust producing in compressor, has therefore improved the serviceability of the first thrust-bearing 9 and the second thrust-bearing 11.Therefore, can improve the serviceability of compressor and can prevent that compressor from producing vibration and noise during operation.
The first suction chamber 27A is formed on the inner circumferential side of front casing 13, and the first drain chamber 29A is formed on the outer circumferential side of front casing 13.Similarly, the second suction chamber 27B is formed on the inner circumferential side of rear casing 15, and the second drain chamber 29B is formed on the outer circumferential side of rear casing 15.The first thrust-bearing 9 is arranged in the first suction chamber 27A, and the second thrust-bearing 11 is arranged in the second suction chamber 27B.
In this compressor, the first thrust-bearing 9 is in the face of the first suction chamber 27A, and live axle 3 is bearing in the first suction chamber 27A by the first thrust-bearing 9 in the rear end of its first axle part 3A.The second thrust-bearing 11 is in the face of the second suction chamber 27B, and live axle 3 is bearing in the second suction chamber 27B by the second thrust-bearing 11 at its second axle part 3B place.
In this compressor of preferred implementation, be included in and be flowing in the lubricant oil in refrigeration agent in the first suction chamber 27A and the second suction chamber 27B and not only lubricated live axle 3 but also lubricated the first thrust-bearing 9 and the second thrust-bearing 11, thereby allow live axle 3 to rotate reposefully.Live axle 3 is protected with opposing wearing and tearing, and has improved the serviceability of compressor.Refrigeration agent in suction chamber has relatively low temperature.Therefore any frictional heat, producing in the first thrust-bearing 9 and the second thrust-bearing 11 is come cooling by refrigeration agent.
This is preferred embodiment considered to illustrative and nonrestrictive, and the details that the invention is not restricted to provide in literary composition, but can with as below the various ways of example modify.
In the first thrust-bearing 9 and the second thrust-bearing 11, not only the first seat ring 9A, 11A but also the second seat ring 9B, 11B can form and can flexibly be out of shape.
In the first thrust-bearing 9 and the second thrust-bearing 11 only any one can form and can flexibly be out of shape.Alternatively, the first thrust-bearing 9 and the second thrust-bearing 11 all cannot form and can flexibly be out of shape.
Compressor can be constructed so that the tilt angle of swash plate 5 can be changed, thereby make the discharge capacity of compressor in each rotation of live axle 3, is transformable.And in this case, the first thrust-bearing 9 and the second thrust-bearing 11 are positioned at the outside of crank chamber 35, make to be easy to form less in the situation that and guarantee for changing the necessary space of mechanism at the angle of inclination of swash plate 5 in crank chamber 35.
The first thrust-bearing 9 can be arranged in crank chamber 35, or in the inner side of the first cylinder body 17.In this case, the first thrust-bearing 9 should preferably be arranged on the place ahead of the top dead center T1 of first piston head 7A in the first cylinder body 17.
Alternatively, the second thrust-bearing 11 can be arranged in crank chamber 35, or in the inner side of the second cylinder body 19.In this case, the second thrust-bearing 11 should preferably be arranged on the rear of the top dead center T2 of the second piston head 7B in the second cylinder body 19.
The first thrust-bearing 9 and the second thrust-bearing 11 are separately positioned in the first suction chamber 27A and the second suction chamber 27B.Alternatively, the first thrust-bearing 9 and the second thrust-bearing 11 can be arranged to respectively be communicated with the first suction chamber 27A and the second suction chamber 27B.Therefore, the first thrust-bearing 9 and the second thrust-bearing 11 are respectively in the face of the first suction chamber 27A and the second suction chamber 27B.In this case, the first thrust-bearing 9 and the second thrust-bearing 11 are respectively by special-purpose communicating passage or be formed on the gap between shell 1 and live axle 3 and be communicated with the first suction chamber 27A and the second suction chamber 27B.
Annular bearing with rolling contact can be used to replace the first sliding bearing 31A and the second sliding bearing 31B.
The present invention is also applicable to single-head piston type swash plate compressor.And in this case, what compressor can be for fixed displacement formula or variable displacement.
Claims (4)
1. a tilted-plate compressor, comprising:
Live axle (3);
Swash plate (5), it is upper with rotation together with described live axle (3) that described swash plate (5) is arranged on described live axle (3);
Piston (7), described piston (7) engages with described swash plate (5);
Cylinder body (17,19), described cylinder body (17,19) accommodating described swash plates (5);
Shell (1), described shell (1) is connected to described cylinder body (17,19);
Cylinder thorax (17A, 19A), described cylinder thorax (17A, 19A) is formed in described cylinder body (17,19), and described piston (7) is received in described cylinder thorax (17A, 19A);
Pressing chamber (41A, 41B), described pressing chamber (41A, 41B) is limited in described cylinder thorax (17A, 19A) by described piston (7);
Suction chamber (27A, 27B), described suction chamber (27A, 27B) is formed in described shell (1) to can be communicated with described pressing chamber (41A, 41B);
Drain chamber (29A, 29B), described drain chamber (29A, 29B) is formed in described shell (1) to can be communicated with described pressing chamber (41A, 41B); And
The first thrust-bearing (9) and the second thrust-bearing (11), described the first thrust-bearing (9) and described the second thrust-bearing (11) are arranged on the opposite side of described swash plate (5),
It is characterized in that, described live axle (3) extends through described cylinder body (17,19) and supports by described the first thrust-bearing (9) and described the second thrust-bearing (11) along thrust direction, and in described the first thrust-bearing (9) and described the second thrust-bearing (11) at least any one be arranged on the outside of described cylinder body (17,19) and be positioned at described shell (1) and described live axle (3) between.
2. tilted-plate compressor according to claim 1, it is characterized in that, described shell (1) comprises and is connected to described cylinder body (17, 19) front casing of front end (13) and be connected to described cylinder body (17, 19) rear casing of rear end (15), described cylinder thorax (17A, 19A) comprise and be formed on described cylinder body (17, 19) the first cylinder thorax (17A) on front side and be formed on described cylinder body (17, 19) the second cylinder thorax (19A) on rear side, described piston (7) comprise can be in described the first cylinder thorax (17A) reciprocating first piston head (7A) and can be in described the second cylinder thorax (19A) reciprocating the second piston head (7B), described the first thrust-bearing (9) is arranged between described front casing (13) and described live axle (3), and described the second thrust-bearing (11) is arranged between described rear casing (15) and described live axle (3).
3. tilted-plate compressor according to claim 1 and 2, it is characterized in that, at least one in described the first thrust-bearing (9) and described the second thrust-bearing (11) is as damping device, and described damping device and described shell (1) and described live axle (3) are used from by making at least one distortion in the first thrust-bearing (9) and described the second thrust-bearing (11) receive thrust.
4. tilted-plate compressor according to claim 1, is characterized in that, at least one in described the first thrust-bearing (9) and described the second thrust-bearing (11) is in the face of described suction chamber (27A, 27B).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-036433 | 2013-02-26 | ||
| JP2013036433A JP2014163328A (en) | 2013-02-26 | 2013-02-26 | Swash plate compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104005930A true CN104005930A (en) | 2014-08-27 |
Family
ID=50101740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410064477.6A Pending CN104005930A (en) | 2013-02-26 | 2014-02-25 | Swash plate compressor |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20140241925A1 (en) |
| EP (1) | EP2770206A1 (en) |
| JP (1) | JP2014163328A (en) |
| KR (1) | KR20140106412A (en) |
| CN (1) | CN104005930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114280A (en) * | 2015-09-18 | 2015-12-02 | 苏州中成汽车空调压缩机有限公司 | Two-way piston constant-displacement compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0569958A1 (en) * | 1992-05-13 | 1993-11-18 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type refrigerant compressor |
| US5336149A (en) * | 1993-01-28 | 1994-08-09 | Greenmaster Industrial Corp. | Abdominal and hip exercising apparatus |
| US5368450A (en) * | 1992-08-07 | 1994-11-29 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type compressor |
| US5765996A (en) * | 1994-04-08 | 1998-06-16 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Vibration preventing structure in swash plate type compressor |
| CN1424504A (en) * | 2001-12-06 | 2003-06-18 | 株式会社丰田自动织机 | Lubricating structure of stationery output piston compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06288349A (en) * | 1993-04-06 | 1994-10-11 | Toyota Autom Loom Works Ltd | Reciprocating type compressor |
| KR950003623A (en) * | 1993-07-19 | 1995-02-17 | 이소가이 찌세이 | Rotating shaft support structure in reciprocating compressor |
| JP2924636B2 (en) | 1993-11-24 | 1999-07-26 | 株式会社豊田自動織機製作所 | Double head swash plate type compressor |
| JP3135470B2 (en) * | 1995-03-22 | 2001-02-13 | 株式会社豊田自動織機製作所 | Reciprocating piston compressor |
| US5921756A (en) * | 1995-12-04 | 1999-07-13 | Denso Corporation | Swash plate compressor including double-headed pistons having piston sections with different cross-sectional areas |
-
2013
- 2013-02-26 JP JP2013036433A patent/JP2014163328A/en not_active Withdrawn
-
2014
- 2014-02-12 EP EP14154785.1A patent/EP2770206A1/en not_active Withdrawn
- 2014-02-20 US US14/185,324 patent/US20140241925A1/en not_active Abandoned
- 2014-02-21 KR KR1020140019961A patent/KR20140106412A/en not_active Application Discontinuation
- 2014-02-25 CN CN201410064477.6A patent/CN104005930A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0569958A1 (en) * | 1992-05-13 | 1993-11-18 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type refrigerant compressor |
| US5368450A (en) * | 1992-08-07 | 1994-11-29 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type compressor |
| US5336149A (en) * | 1993-01-28 | 1994-08-09 | Greenmaster Industrial Corp. | Abdominal and hip exercising apparatus |
| US5765996A (en) * | 1994-04-08 | 1998-06-16 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Vibration preventing structure in swash plate type compressor |
| CN1424504A (en) * | 2001-12-06 | 2003-06-18 | 株式会社丰田自动织机 | Lubricating structure of stationery output piston compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114280A (en) * | 2015-09-18 | 2015-12-02 | 苏州中成汽车空调压缩机有限公司 | Two-way piston constant-displacement compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140106412A (en) | 2014-09-03 |
| US20140241925A1 (en) | 2014-08-28 |
| JP2014163328A (en) | 2014-09-08 |
| EP2770206A1 (en) | 2014-08-27 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140827 |