CN103362809A - Cascading blade compressor - Google Patents
Cascading blade compressor Download PDFInfo
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- CN103362809A CN103362809A CN2013101023434A CN201310102343A CN103362809A CN 103362809 A CN103362809 A CN 103362809A CN 2013101023434 A CN2013101023434 A CN 2013101023434A CN 201310102343 A CN201310102343 A CN 201310102343A CN 103362809 A CN103362809 A CN 103362809A
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Abstract
The invention provides a cascading blade compressor, comprising main blades, assistant blades, main blade grooves, and assistant blade grooves. A main backpressure chamber is disposed between a bottom surface of each main blade and the corresponding main blade groove. An assistant backpressure chamber is disposed between a bottom surface of each assistant blade and the corresponding assistant blade groove. A housing comprises a shell, a first side plate, a second side plate, a third side plate, a first cylinder block, and a second cylinder block. An inner housing formed by the first side plate, the second side plate, the third side plate, the first cylinder block, and the second cylinder block are provided with a common channel, a first supply channel, and a second supply channel. The common channel extends on a longitudinal direction of a drive shaft to communicate with an exhaust chamber. The first supply channel connects the common channel with each main backpressure chamber, and the second supply channel connects the common channel with each assistant backpressure chamber.
Description
Technical field
The present invention relates to a kind of cascade connection type blade compressor.
Background technique
Japanese laid-open patent communique No.59-90086, Japanese laid-open patent communique No.58-144687, TOHKEMY model utility communique No.3-102086, TOHKEMY model utility communique No.60-39793 and TOHKEMY model utility communique No.3-118294 disclose traditional cascade connection type blade compressor.These cascade connection type blade compressors have: the induction chamber in housing, exhaust chamber, pressing chamber; And the live axle that is supported rotatably.In addition, in housing, a plurality of compressing mechanism cascades ground connects to carry out breathing process, compression process and exhaust process, pressing chamber sucks low pressure refrigerant gas from induction chamber in breathing process, refrigerant gas is compressed in pressing chamber in compression process, and the high-pressure refrigeration gas discharging in exhaust process in the pressing chamber is to exhaust chamber.
Each compressing mechanism comprises the first compressing mechanism and the second compressing mechanism.The first compressing mechanism comprises the first cylinder chamber that is formed in the housing and is arranged in the first cylinder chamber with the first rotor by the live axle rotation.In the first rotor, be formed with a plurality of primary blades grooves that radially extend.In addition, the first compressing mechanism comprises primary blades, and wherein primary blades is arranged as can be in corresponding primary blades groove outstanding and retract and form main pressing chamber with the internal surface of the first cylinder chamber and the outer surface of the first rotor.Main pressing chamber is positioned at the place, front side.
Be similar to the first compressing mechanism, the second compressing mechanism comprises the second cylinder chamber of being formed in the housing, be arranged in the second cylinder chamber and the second rotor by the running shaft rotation.Similarly, in the second rotor, form the back blades groove that is radially extended by a plurality of.In addition, similarly, the second compressing mechanism comprises back blades, and wherein back blades is arranged as can be in corresponding back blades groove outstanding and retract and form secondary pressing chamber with internal surface and the bitrochanteric outer surface of the second cylinder chamber.Secondary pressing chamber is positioned at rear side.
Under these cascade connection type blade compressors used situation in the air bells conditioner at vehicle etc., live axle was via for example being magnetic clutch rotation and driving.For this reason, the first and second compressing mechanisms running.That is to say the first and second rotors, and main pressing chamber and the execution of secondary pressing chamber breathing process, compression process and exhaust process.For this reason, refrigerant gas is drawn into main pressing chamber and secondary pressing chamber, compresses and is discharged into exhaust chamber in main pressing chamber and secondary pressing chamber from induction chamber.The high-pressure refrigeration gas that is discharged into exhaust chamber is supplied to the refrigerating circuit of air bells conditioner.
Therefore, in these cascade connection type blade compressors, because main pressing chamber and secondary pressing chamber are carried out breathing process, compression process and exhaust process separately, therefore can increase the air displacement of the each rotation of live axle.
In addition, in order to increase air displacement, when the single casing blade compressor with single air cavity and rotor simply during axial elongation, can expect to cause each blade to be easy to tilt with respect to fore-and-aft direction.This can be so that refrigerant gas be easy to spill from pressing chamber, and makes the sliding characteristics of each blade become bad.In this regard, in the tandem type blade compressor, can expect that every person can not tilt with respect to fore-and-aft direction in primary blades and the back blades, reduce refrigerant gas and from main pressing chamber and secondary pressing chamber, spilt, and improved the sliding characteristics of every person in primary blades and the back blades.Thus, expect and in the tandem type blade compressor, present good mechanical efficiency.
In addition, because the cascade connection type blade compressor can have the housing diameter identical with single cylinder type blade compressor, so cascade connection type blade compressor relative compact; That is to say, in crowded engine compartment, this compressor is installed relatively easily.
But, more than traditional cascade connection type blade compressor be not configured to that extreme pressure lubricant is fed to bottom surface and the main back pressure chamber between each primary blades groove that is formed on each primary blades and be fed to the bottom surface that is formed on each back blades and the secondary back pressure chamber between each back blades groove.Therefore, in the cascade connection type blade compressor, although the first compressing mechanism and the second compressing mechanism are carried out compression step and steps of exhausting separately, each in primary blades and the back blades is not pressed against the internal surface of the first and second cylinder chamber.Therefore, refrigerant gas may leak from main pressing chamber and secondary pressing chamber.For this reason, be difficult in the cascade connection type blade compressor, show reliably high mechanical efficiency.
The purpose of this invention is to provide a kind of tandem type blade compressor, it increases the air displacement of the each rotation of live axle, reliably compression and efficient, and have good mounting characteristic.
Summary of the invention
In order to realize above purpose and according to an aspect, to provide the cascade connection type that comprises housing and a plurality of compressing mechanisms blade compressor.Housing has induction chamber, exhaust chamber and a plurality of pressing chamber.Housing rotary ground supporting driving shaft.Compressing mechanism is included in the first compressing mechanism and the second compressing mechanism that connects to cascade each other in the housing.The first compressing mechanism and the second compressing mechanism have respectively at least one pressing chamber.Each compressing mechanism drives by the rotation of live axle, to carry out breathing process, compression process and exhaust process, wherein each compressing mechanism is drawn into low pressure refrigerant gas in the corresponding pressing chamber from induction chamber in breathing process, each compressing mechanism compression refrigeration gas in corresponding pressing chamber in compression process, in exhaust process each compressing mechanism with the high-pressure refrigeration gas discharging in corresponding pressing chamber to exhaust chamber.The first compressing mechanism comprises the first cylinder chamber of being formed in the housing, be arranged in the first cylinder chamber the first rotor and a plurality of primary blades with rotation when live axle rotates.The first rotor has a plurality of primary blades grooves that radially extend.Each primary blades is arranged in one of them primary blades groove and can gives prominence to and retract.The pressing chamber of the first compressing mechanism is limited by the internal surface of the first cylinder chamber, outer surface and the primary blades of the first rotor.The pressing chamber of the first compressing mechanism is positioned at the position in pressing chamber the place ahead of the second compressing mechanism.The second compressing mechanism comprises the second cylinder chamber of being formed in the housing, be arranged in the second cylinder chamber the second rotor and a plurality of back blades with rotation when live axle rotates.The second rotor has a plurality of back blades grooves that radially extend.Each back blades is arranged in a back blades groove and can gives prominence to and retract.The pressing chamber of the second compressing mechanism is limited by the internal surface of the second cylinder chamber, bitrochanteric outer surface and back blades.The bottom surface of each primary blades limits main back pressure chamber with corresponding primary blades groove.The bottom surface of each back blades limits secondary back pressure chamber with corresponding back blades groove.Housing comprises shell, the first side plate, the second side plate, the 3rd side plate, the first cylinder block and the second cylinder block, its housing has air-breathing entrance and the exhaust outlet that is connected to the outside, the first side plate is contained in the shell and with housing and limits induction chamber so that induction chamber is communicated with air-breathing entrance, the second side plate be contained in the shell and make the first compressing mechanism and the second compressing mechanism separated from one another, the 3rd side plate is contained in the shell and with shell and limits exhaust chamber so that exhaust chamber is communicated with exhaust outlet, the first cylinder block is contained in the shell and when remaining between the first side plate and the second side plate and forms the first cylinder chamber, the second cylinder block is contained in the shell, remain on simultaneously between the second side plate and the 3rd side plate, form thus the second cylinder chamber.The first side plate, the first cylinder block, the second side plate, the second cylinder block and the 3rd side plate form inner housing.Described inner housing has public passage, the first service duct and the second service duct, described public passage extends to be communicated with described exhaust chamber at the longitudinal direction of described live axle, described the first service duct is connected the main back pressure chamber of described public passage and each, and described the second service duct is connected the secondary back pressure chamber of described public passage and each.
Cascade connection type blade compressor of the present invention has the main back pressure chamber between the bottom surface that extreme pressure lubricant can be fed to be formed on each primary blades and the corresponding primary blades groove and is formed on the bottom surface of each back blades and the structure of the secondary back pressure chamber between the corresponding back blades groove.That is to say that the extreme pressure lubricant in exhaust chamber is fed to corresponding main back pressure chamber via the public passage and the first service duct that are formed in the inner housing, wherein.In addition, the extreme pressure lubricant in exhaust chamber is fed to corresponding secondary back pressure chamber via the public passage and the second service duct that are formed in the inner housing.
For this reason, in the cascade connection type blade compressor, when the first compressing mechanism and the second compressing mechanism were correspondingly carried out compression process and exhaust process, each in primary blades and the back blades pressed the internal surface of the first cylinder chamber and the second cylinder chamber suitably.Therefore, reduced the leakage of refrigerant gas from main pressing chamber and secondary pressing chamber.For this reason, the cascade connection type blade compressor has higher mechanical efficiency.In addition, in the cascade connection type blade compressor, each main back pressure chamber and each secondary back pressure chamber do not need to be separately connected to exhaust chamber.This has reduced manufacture cost.
Therefore, by this cascade connection type blade compressor, so that the air displacement of the each rotation of live axle increases, and compactedness and efficient are satisfactory.
In addition, in cascade connection type blade compressor of the present invention, simplified the passage that is used for the supply back pressure by forming public passage.This has reduced manufacture cost.
In cascade connection type blade compressor of the present invention, compressing mechanism can comprise another compressing mechanism except the first compressing mechanism and the second compressing mechanism.In addition, shell can be by front shell member and rear portion housing structure structure.Forwardly can be provided with cylindrical central housing structure between housing structure and the rear portion housing structure.
Other aspects and advantages of the present invention will by engage accompanying drawing, become obvious by the following description that principle of the present invention is given an example to illustrate.
Description of drawings
The present invention and objects and advantages of the present invention can be by with reference to understanding the description of present preferred implementation and accompanying drawing, in the accompanying drawing best:
Fig. 1 is the sectional view of the cascade connection type blade compressor of the first mode of execution;
Fig. 2 show the first mode of execution the cascade connection type blade compressor, cut open the sectional view of getting along the hatching II-II of Fig. 1;
Fig. 3 show the first mode of execution the cascade connection type blade compressor, cut open the sectional view of getting along the hatching III-III of Fig. 1;
Fig. 4 is the sectional view of the cascade connection type blade compressor of the second mode of execution;
Fig. 5 is the sectional view of the cascade connection type blade compressor of the 3rd mode of execution;
Fig. 6 is the sectional view of the cascade connection type blade compressor of the 4th mode of execution; And
Fig. 7 is the sectional view of the cascade connection type blade compressor of modification.
Embodiment
Hereinafter with reference to accompanying drawing first to fourth mode of execution of the present invention is described.
(the first mode of execution)
As shown in Figure 1, it is fixing under the state that is placed in the front shell member 1 that is coupled to each other and rear portion housing structure 3 that the cascade connection type blade compressor of the first mode of execution has the first side plate 11, the first cylinder block 5, the second side plate 13, the second cylinder block 7 and the 3rd side plate 15, the first side plates 11, the first cylinder block 5, the second side plate 13, the second cylinder block 7 and the 3rd side plate 15.Front shell member 1 and rear portion housing structure 3 form shell 9.The diameter of shell 9 is identical with the diameter of single cylinder type blade compressor.In addition, the first cylinder block 5 has identical profile with the second cylinder block 7.
As shown in Figure 2, in the first cylinder block 5, also be formed with oval-shaped the first 5a of cylinder chamber on the direction vertical with axis.As shown in Figure 3, in the second cylinder block 7, also form by having the second cylinder chamber 7a identical shaped with the first 5a of cylinder chamber.The first cylinder block 5 is fixed as with the second cylinder block 7 so that the first 5a of cylinder chamber has identical phase place with the second 7a of cylinder chamber.
As shown in Figure 1, the first cylinder block 5 is contained in the shell 9, and is simultaneously sandwiched by the first side plate 11 and the second side plate 13.The second side plate 13 is formed by the second side plate main body 13b that is positioned at the front side and the second side plate cover piece 13c that is positioned at the rear side of the second side plate main body 13b.The front-end and back-end of the first 5a of cylinder chamber are respectively by the first side plate 11 and the second side plate main body 13b sealing.
In addition, the second cylinder block 7 is contained in the shell 9, and is simultaneously sandwiched by the second side plate cover piece 13c and the 3rd side plate 15.The front-end and back-end of the second 7a of cylinder chamber are respectively by the second side plate cover piece 13c and 15 sealings of the 3rd side plate.Shell 9, the first cylinder block 5, the second cylinder block 7 and the first side plate 11, the second side plate 13, the 3rd side plate 15 are corresponding with housing.The first side plate 11, the first cylinder block 5, the second side plate 13, the second cylinder block 7 and the 3rd side plate 15 have been constructed inner housing.
In addition, have the first rotor 27 of circular cross-section and the second rotor 29 around live axle 25 press fits.The first rotor 27 is arranged in the first 5a of cylinder chamber, and the second rotor 29 is arranged in the second 7a of cylinder chamber.
As shown in Figure 2, be formed with five primary blades groove 27a that radially extend at the external peripheral surface of the first rotor 27, and primary blades 31 is contained among each primary blades groove 27a giving prominence to and retract.Space between the bottom surface of each primary blades 31 and the corresponding primary blades groove 27a is main back pressure chamber 33.Five main pressing chambers 35 are formed by the external peripheral surface of two adjacent primary blades 31,31, the first rotor 27, the inner circumferential surface of the first cylinder block 5, the rear surface of the first side plate 11 and the front surface of the second side plate main body 13b respectively.
In addition, as shown in Figure 3, on the external peripheral surface of the second rotor 29, also be formed with five back blades groove 29a that radially extend, and back blades 37 is contained among each back blades groove 29a giving prominence to and retract.Space between the bottom surface of each back blades 37 and the corresponding back blades groove 29a is secondary back pressure chamber 39.Five secondary pressing chambers 41 are formed by the external peripheral surface of two adjacent back blades 37, the 37, second rotor 29, the inner circumferential surface of the second cylinder block 7, the rear surface of the second side plate cover piece 13c and the front surface of the 3rd side plate 15 respectively.
The first rotor 27 is identical parts with the second rotor 29.In addition, primary blades 31 is identical parts with back blades 37.These parts use in single cylinder type blade compressor.
As shown in Figure 1, forwardly be formed with induction chamber 43 between housing structure 1 and the first side plate 11.Be used for induction chamber 43 is connected to forwardly housing structure 1 upward opening of outside air-breathing entrance 1b.Two suction port 11b that are used for being communicated with induction chamber 43 form and extend through the first side plate 11, and each air-breathing empty 11b is communicated with the corresponding breathing space 5b of the first cylinder block 5.As shown in Figure 2, corresponding breathing space 5b is configured to be communicated with main pressing chamber 35 by intakeport 5c in breathing process.
In addition, between the first cylinder block 5 and rear portion housing structure 3, be formed with two exhaust space 5d.In exhaust process pressing chamber 35 be connected exhaust space 5d and connect by relief opening 5e.Closing the outlet valve 45 of relief opening 5e and the retaining device 47 of the lifting capacity of restriction outlet valve 45 is arranged among each exhaust space 5d.For example for live axle 25, the first cylinder block 5, the first rotor 27, corresponding primary blades 31, outlet valve 45 and retaining device 47 base part be configured to the first compressing mechanism 1C.
As shown in Figure 1, two suction port 13d that are used for being communicated with the corresponding breathing space 5b of the first cylinder block 5 form and extend through the second side plate 13, and suction port 13d is communicated with the breathing space 7b of the second cylinder block 7 respectively.As shown in Figure 3, corresponding breathing space 7b is configured to be communicated with secondary pressing chamber 41 by intakeport 7c in breathing process.
In addition, as shown in Figure 1, two exhaust port 13e that are used for being communicated with corresponding exhaust space 5d form and extend through the second side plate 13.In addition, between the second cylinder block 7 and rear portion housing structure 3, be formed with two exhaust space 7d.Exhaust port 13e is communicated with exhaust space 7d respectively.As shown in Figure 3, pressing chamber 41 and corresponding exhaust space 7d communicate with each other by relief opening 7e in exhaust process.Closing the outlet valve of relief opening 7e and the retaining device 51 of the lifting capacity of restriction outlet valve 49 is arranged among each exhaust space 7d.The second compressing mechanism 2C is by the parts structure that for example is live axle 25, the second cylinder block 7, the second rotor 29, corresponding back blades 37, outlet valve 49 and retaining device 51 and so on.
As shown in Figure 1, two exhaust port 15b that are used for being communicated with corresponding exhaust space 7d form and extend through the 3rd side plate 15.In addition, between the 3rd side plate 15 and rear portion housing structure 3, be formed with exhaust chamber 53.In exhaust chamber 53, centrifugal type separator 55 is by sandwiched and fixing by the 3rd side plate 15 and rear portion housing structure 3.Separator 55 is fixed by end frame 57 with in end frame 57 and is constructed at the upwardly extending cylindrical member 59 of upper and lower.
In end frame 57, be formed with cylindricality at the upwardly extending oil separation chamber 57a of upper and lower.Cylindrical member 59 is press fit in the upper end of oil separation chamber 57a.For this reason, the part of oil separation chamber 57a plays the effect of the guiding surface 57b of the external peripheral surface coiling that makes refrigerant gas center on cylindrical member 59.Exhaust port 15b is towards the space open between cylindrical member 59 and the guiding surface 57b.In addition, the lower end in end frame 57 is formed with the bottom surface of permission oil separation chamber 57a and the intercommunicating pore 57c that exhaust chamber 53 is communicated with.In addition, be connected to outside exhaust outlet 3a for the upper end with exhaust chamber 53 and be formed on rear portion housing structure 3.Exhaust outlet 3a locates above cylindrical member 59.
As depicted in figs. 1 and 2, be formed with a pair of oil extraction groove 13f of fan shape at the front surface place of the second side plate main body 13b.Corresponding oil extraction groove 13f is configured to that the rotation by the first rotor 27 is communicated with main back pressure chamber 33 grades in breathing process etc.In addition, such as Fig. 1 and shown in Figure 5, the valve chamber 13g that is used for being communicated with between exhaust port 13e and corresponding oil extraction groove 13f forms and extends through the second side plate main body 13b, and spherical valve body 61 is contained among the valve chamber 13g.Valve body 61 is urged in the direction of opening valve chamber 13g by the spring 63 that is contained among the valve chamber 13g.By the second side plate cover piece 13c, prevented that valve body 61 breaks away from.Oil extraction groove 13f, valve chamber 13g, valve body 61 and spring 63 are configured to prevent the first vibrationproof valve 73 of the first compressing mechanism 1C vibration.
As shown in figures 1 and 3, also be formed with the oil extraction groove 15f of a pair of fan shape at the front surface place of the 3rd side plate 15.Corresponding oil extraction groove 15f is configured to that the rotation by the second rotor 29 is communicated with secondary back pressure chamber 39 grades in breathing process.In addition, as shown in Figure 1, the valve chamber 15g that is used for being communicated with between exhaust chamber 53 and corresponding oil extraction groove 15f forms and extends through the 3rd side plate 15, and also accommodating by ball-type valve body 65 in valve chamber 15g.Valve body 65 is urged in the direction of opening valve chamber 15g by the spring 67 that is contained among the valve chamber 15g.End frame 57 by separator 55 has prevented that valve body 65 breaks away from.Oil extraction groove 15f, valve chamber 15g, valve body 65 and spring 67 are configured to prevent the second vibrationproof valve 75 of the second compressing mechanism 2C vibration.
The first rotor 27 and the second rotor 29 are fixed to live axle 25, so that primary blades groove 27a has identical phase place with back blades groove 29a, oil extraction groove 13f, 15f and the first vibrationproof valve 73 with the second vibrationproof valve 75.
Your Majesty swims passage 13h and forms from the lower end in the second side plate main body 13b and extend upward.In addition, as shown in Figure 2, the annular main center-aisle 13i that centers on axis hole 13a is formed among the second side plate main body 13b.The upper end that the Your Majesty swims passage 13h is communicated with main center-aisle 13i.In addition, in the second side plate main body 13b, two main downstream passage 13j that are used for being communicated with main center-aisle 13i extend forward on axial direction.Corresponding main downstream passage 13j be configured in compression process and exhaust process in rotation by the first rotor 27 be communicated with main back pressure chamber 33.The Your Majesty swims passage 13h, main center-aisle 13i and main downstream passage 13j forms the first service duct.
In addition, as shown in Figure 1, a secondary upstream passageway 15h forms from the lower end in the 3rd side plate 15 and extends upward.In addition, as shown in Figure 3, in the 3rd side plate 15, also form by the annular secondary center-aisle 15i around axis hole 15a.The upper end of secondary upstream passageway 15h is communicated with secondary center-aisle 15i.In addition, in the 3rd side plate 15, two secondary downstream passage 15j that are used for being communicated with secondary center-aisle 15i extend forward on axial direction.Corresponding secondary downstream passage 15j be configured in compression process and exhaust process in rotation by the second rotor 29 be communicated with secondary back pressure chamber 39.Secondary upstream passageway 15h, secondary center-aisle 15i and secondary downstream passage 15j form the second service duct.
As shown in Figure 1, live axle 25, sliding bearing 17,19,21, the first side plate 11, the first cylinder block 5, corresponding primary blades 31, outlet valve 45, retaining device 47, the second side plate 13, the first vibrationproof valve 73, the second cylinder block 7, corresponding back blades 37, outlet valve 49, retaining device 51, the 3rd side plate 15, the second vibrationproof valve 75 and separator 55 are assembled into sub-component SA.In sub-component SA, in the 3rd side plate 15, the second cylinder block 7 and the second side plate 13, be formed with the main passage 69 of extending and being communicated with exhaust chamber 53 at fore-and-aft direction (longitudinal direction of live axle 25).The Your Majesty swims passage 13h and secondary upstream passageway 15h is communicated with main passage 69.The part from the end of bifurcation site to secondary upstream passageway 15h of main passage 69 is public passage 69a, and another part of main passage 69 is to swim the single passage 69b that passage 13h is communicated with the Your Majesty.
O shape circle is attached to sub-component SA, and sub-component SA is inserted in the rear portion housing structure 3.Then, another O shape circle is attached to rear portion housing structure 3, and front shell member 1 covers on the rear portion housing structure 3.In addition, a plurality of bolts 71 shown in fastening Fig. 2 and Fig. 3.Therefore, assembled the cascade connection type blade compressor of the first mode of execution.
Although do not illustrate, in this cascade connection type blade compressor, exhaust outlet 3a is connected to condenser by pipeline, and condenser is connected to expansion valve by pipeline, and expansion valve is connected to vaporizer by pipeline, and vaporizer is connected to air-breathing entrance 1b by pipeline.Cascade connection type blade compressor, condenser, expansion valve, vaporizer and pipeline have formed refrigerating circuit.Refrigerating circuit is the part for the air bells conditioner of vehicle.
In the cascade connection type blade compressor, when live axle was driven by motor etc., the first compressing mechanism 1C and the second compressing mechanism 2C repeated respectively breathing process, compression process and exhaust process.
That is to say that the first rotor 27 and the second rotor 29 synchronously rotate with live axle 25, and have produced volume-variation in main pressing chamber 35 and secondary pressing chamber 41.For this reason, refrigerant gas passes air-breathing entrance 1b from vaporizer and is drawn into the induction chamber 43.Refrigerant gas in the induction chamber 43 is drawn in the main pressing chamber 45 via suction port 11b, breathing space 5b and intakeport 5c.In addition, the refrigerant gas among the breathing space 5b is drawn in the secondary pressing chamber 41 via suction port 13d, breathing space 7b and intakeport 7c.
Afterwards, the refrigerant gas that has compressed in main pressing chamber 35 is discharged into exhaust space 5d via relief opening 5e.High-pressure refrigeration gas among the exhaust space 5d arrives exhaust space 7d via exhaust port 13e.In addition, the refrigerant gas that has compressed in secondary pressing chamber 41 is discharged into exhaust space 7d via relief opening 7e.High-pressure refrigeration gas among the exhaust space 7d discharges towards the guiding surface 57b of separator 50 via exhaust port 15b.For this reason, refrigerant gas is in guiding surface 57b cocycle, and therefore lubricant oil is separated eccentrically.Afterwards, the refrigerant gas that therefrom separated of lubricant oil discharges towards condenser from exhaust outlet 3a.Therefore, in the cascade connection type blade compressor, than single cylinder type blade compressor, the air displacement of each rotation of live axle 25 is double.
In addition, in the cascade connection type blade compressor, because a corresponding part has the employed minor axis length of the single cylinder type blade compressor of picture in primary blades 31 and the back blades 37, so they can not tilt with respect to fore-and-aft direction.For this reason, refrigerant gas is less from the leakage of main pressing chamber 35 and secondary pressing chamber 41, and the sliding properties of a corresponding part is good in primary blades 31 and the back blades 37.
Separated lubricant oil is by being stored in the exhaust chamber 53 from oil separation chamber 57a inside via intercommunicating pore 57c guiding.Because exhaust chamber 53 is under the high pressure, so the lubricant oil in the exhaust chamber 53 is fed to main passage 69.Lubricant oil among the single channel 69b of main passage 69 swims passage 13h via the Your Majesty among the first compressing mechanism 1C and main center-aisle 13i is fed to main downstream passage 13j.For this reason, extreme pressure lubricant is fed to corresponding main back pressure chamber 33 in compression process and exhaust process.
In addition, the lubricant oil in the main passage 69 flow to single channel 69b and secondary upstream passageway 15h the two from public passage 69a.Afterwards, the lubricant oil among the secondary upstream passageway 15h is fed to secondary downstream passage 15j via the secondary center-aisle 15i among the second compressing mechanism 2C.For this reason, extreme pressure lubricant is fed to corresponding secondary back pressure chamber 39 in compression process and exhaust process.
For this reason, in this cascade connection type blade compressor, although the first compressing mechanism 1C and the second compressing mechanism 2C carry out respectively compression process, corresponding primary blades 31 and back blades 37 press the internal surface of the first 5a of cylinder chamber and the second 7a of cylinder chamber suitably.Therefore, refrigerant gas is less from the leakage of main pressing chamber 35 and secondary pressing chamber 41.For this reason, can show reliably high mechanical efficiency.In addition, in this cascade connection type blade compressor, because corresponding main back pressure chamber 33 and corresponding secondary back pressure chamber 39 do not need to be communicated with separately with exhaust chamber 53.Therefore, reduced manufacture cost.
In addition, above-mentioned cascade connection type blade compressor has the housing diameter identical with single cylinder type blade compressor, so mounting characteristics is good.
Should be noted that the lubricant oil that is fed to corresponding main back pressure chamber 33 help to the slip between among the slide part between primary blades 31 and the primary blades groove 27a, the first rotor 27 and the first side plate 11 and the second side plate main body 13b each, sliding bearing 17,19 and live axle 25 between slip etc. be lubricated.In addition, the lubricant oil that is fed to corresponding secondary back pressure chamber 39 help to the slip between in the slide part between back blades 37 and the back blades groove 29a, the second rotor 29 and the second side plate cover piece 13c and the 3rd side plate 15 each, sliding bearing 19,21 and live axle 25 between slip etc. be lubricated.
Therefore, by above-mentioned cascade connection type blade compressor, the air displacemenies of the each rotation of live axle 25 increase, and efficiency characteristic and designation (compactedness) are good.
In addition, in this cascade connection type blade compressor, the two all provides back pressure in the position near exhaust chamber 53 the first compressing mechanism 1C and the second compressing mechanism 2C.For this reason, the distance 33,39 is short from exhaust chamber 53 to back pressure chamber.This has reduced the pressure loss.In addition, because main passage 69 is short, can also reduce the quantity of manufacturing step.
In addition, in this cascade connection type blade compressor, back pressure unlikely leaks in the induction chamber 43.This has reduced energy loss.
In addition, in this cascade connection type blade compressor, universal component is respectively applied to the first cylinder block 5 and the second cylinder block 7, is used for the first rotor 27 and the second rotor 29 and is used for primary blades 31 and back blades 37.The general character of parts has reduced manufacture cost.
(the second mode of execution)
In the cascade connection type blade compressor of the second mode of execution, as shown in Figure 4, Your Majesty swims passage 11h and forms from lower end in the first side plate 11 and extend upward.In addition, in the first side plate 11, be formed with annular main center-aisle 11i around axis hole 11a.The upper end that the Your Majesty swims passage 11h is communicated with main center-aisle 11i.In addition, in the first side plate 11, two main downstream passage 11j that are used for being communicated with main center-aisle 11i extend back at axial direction.Corresponding main downstream passage 11j is configured to be communicated with main back pressure chamber 33 by being rotated in the compression process He in the exhaust process of the first rotor 27.The Your Majesty swims passage 11h, main center-aisle 11i, main downstream passage 11j forms the first service duct.
In addition, similar to the first mode of execution, in the 3rd side plate 15, be formed with the second service duct that is consisted of by secondary upstream passageway 15h, secondary center-aisle 15i and secondary downstream passage 15j.
In addition, in sub-component SA, in the 3rd side plate 15, the second cylinder block 7, the second side plate 13, the first cylinder block 5 and the first side plate 11, be formed with the main passage 77 of extending and being communicated with exhaust chamber 53 at fore-and-aft direction (longitudinal direction of live axle 25).The Your Majesty swims passage 11h and secondary upstream passageway 15h is communicated with main passage 77.The part from the end of bifurcation site to secondary upstream passageway 15h of main passage 77 is public passage 77a, and another part of main passage 77 is to swim the single passage 77b that passage 11h is communicated with the Your Majesty.
Other structure is similar to the first mode of execution.For this reason, for the parts similar to the first mode of execution, will give the reference character identical with the first mode of execution, and will omit its detailed description.
In this cascade connection type blade compressor, because back pressure is fed to the main back pressure chamber 33 that is positioned at the front side and is fed to the secondary back pressure chamber 39 that is positioned at rear side from rear side from the front side, therefore can easily with good balance back pressure be applied on primary blades 31 and the back blades 37.For this reason, when starting, primary blades 31 and back blades 37 unlikely tilt in primary blades groove 27a and back blades groove 29a.Therefore, can expect to start stably.
In addition, in this cascade connection type blade compressor, because live axle 25 can be supported by the reaction force in the front side that separates with larger span and rear side place back pressure, therefore can expect: long live axle 25 is with lower vibration rotation.In addition, in this cascade connection type blade compressor, lubricant oil can easily be fed to the sliding bearing 17 of front side.Therefore, the rotation of live axle 25 is likely stably.Other advantage is similar to the first mode of execution.
(the 3rd mode of execution)
In the cascade connection type blade compressor of the 3rd mode of execution, as shown in Figure 5, a secondary upstream passageway 13p forms from the lower end in the second side plate 13 and extends upward.In addition, in the second side plate 13, be formed with secondary center-aisle 13q around axis hole 13a.The upstream extremity of secondary upstream passageway 13p is communicated with secondary center-aisle 13q.In addition, in the second side plate 13, two secondary downstream passage 13r that are used for being communicated with secondary center-aisle 13q extend back at axial direction.Corresponding secondary downstream passage 13r is configured to be communicated with secondary back pressure chamber 39 by being rotated in the compression process He in the exhaust process of the second rotor 29.Secondary upstream passageway 13p, secondary center-aisle 13q and secondary downstream passage 13r form the second service duct.
In addition, similar to the second mode of execution, first service duct of being swum passage 11h, main center-aisle 11i and main downstream passage 11j structure by the Your Majesty is formed in the first side plate 11.
In addition, in sub-component SA, in the 3rd side plate 15, the second cylinder block 7, the second side plate 13, the first cylinder block 5 and the first side plate 11, be formed with the main passage 77 of extending and being communicated with exhaust chamber 53 at fore-and-aft direction (longitudinal direction of live axle 25).The Your Majesty swims passage 11h and secondary upstream passageway 13p is communicated with main passage 77.
Other structure is similar with the second mode of execution to the first mode of execution.For this reason, for the parts similar with the second mode of execution to the first mode of execution, will give the reference character identical with the second mode of execution with the first mode of execution, and will omit its detailed description.
In this cascade connection type blade compressor, can easily lubricant oil be fed to the sliding bearing 17 of front side, and therefore the rotation of running shaft 25 is likely stably.Other advantage is similar to the first mode of execution.
(the 4th mode of execution)
In the cascade connection type blade compressor of the 4th mode of execution, as shown in Figure 6, a upstream passageway 13k forms from lower end in the second side plate 13 and extends upward.In addition, in the second side plate 13, be formed with annular center-aisle 13l around axis hole 13a.The upstream extremity of upstream passageway 13k is communicated with center-aisle 13l.In addition, in the second side plate 13, two main downstream passage 13m that are used for being communicated with center-aisle 13l extend forward on axial direction, and two secondary downstream passage 13n that are used for being communicated with center-aisle 13l extend back at axial direction.Corresponding main downstream passage 13m be configured to by the first rotor 27 be rotated in the compression process with exhaust process in be communicated with main back pressure chamber 33.In addition, corresponding secondary downstream passage 13n be configured to by the second rotor 29 be rotated in the compression process with exhaust process in be communicated with secondary back pressure chamber 39.Upstream passageway 13k, center-aisle 13l and main downstream passage 13m form the first service duct.In addition, upstream passageway 13k, center-aisle 13l and secondary downstream passage 13n form the second service duct.
In addition, as in the first embodiment, sub-component SA has the main passage 78 that is formed in the 3rd side plate 15, the second cylinder block 7 and the second side plate 13.Main passage 78 is communicated with in fore-and-aft direction (longitudinal direction of live axle 25) extension and with exhaust chamber 53.Upstream passageway 13k is communicated with main passage 78.Main passage 78 is public passages.
Other structure is similar to the first mode of execution.For this reason, for the parts similar to the first mode of execution, will give the reference character identical with the first mode of execution, and will omit its detailed description.
In this cascade connection type blade compressor, can reduce a plurality of manufacturing steps, this is owing to only must form by upstream passageway 13k in the second side plate 13 etc.Other advantage is similar to the first mode of execution.
Should be noted that in this cascade connection type blade compressor, upstream passageway 13k and center-aisle 13l can be regarded as public passage.
Hereinbefore, describe the present invention with reference to first to fourth mode of execution, the invention is not restricted to first to fourth above mode of execution, and can improve by suitable modification within the scope of the invention.
For example, the shape of housing is not limited to the hull shape of first to fourth mode of execution.For example, as shown in Figure 7, the one in the first side plate 11 and the second side plate 13 can be integral with the first cylinder block 5, and the one in the second side plate 13 and the 3rd side plate 15 can be integral with the second cylinder block 7.Public passage, the first service duct and the second service duct can to Fig. 4 to Fig. 6 in public passage, the first service duct similar with the second service duct.
Except the first compressing mechanism 1C and the second compressing mechanism 2C, can also be provided with the 3rd compressing mechanism.
In addition, although in first to fourth mode of execution, the first compressing mechanism 1C turns round under identical phase place with the second compressing mechanism 2C, but the first compressing mechanism 1C can turn round under different phase places with the second compressing mechanism 2C, and this depends on the purpose that for example reduces exhaust pulsation and so on.
In addition, can be drawn among the second compressing mechanism 2C and by the second compressing mechanism 2C by the refrigerant gas of the first compressing mechanism 1C compression and further compress, so that multi-level compression to be provided.
In addition, the second side plate 13 can be configured to not have the second side plate cover piece 13c, and the valve body 61 of vibrationproof valve 73 can pass through the second rotor 29 maintenances.
Change channel diameter by the position according to public passage, lubricant oil optimally can be fed to main back pressure chamber and secondary back pressure chamber etc.
Therefore, present embodiment and mode of execution should be regarded as descriptive and nonrestrictive, and the invention is not restricted to the details that this paper provides, but can make amendment in the scope of claims and equivalent way scope.
Claims (6)
1. cascade connection type blade compressor comprises:
Housing, described housing have induction chamber, exhaust chamber and a plurality of pressing chamber, wherein said housing rotary ground supporting driving shaft; And
A plurality of compressing mechanisms, the first compressing mechanism that described a plurality of compressing mechanisms are coupled to each other with being included in described housing cascade and the second compressing mechanism, wherein
Described the first compressing mechanism and described the second compressing mechanism have respectively at least one described pressing chamber,
Each described compressing mechanism drives by the rotation of described driving shaft, to carry out breathing process, compression process and exhaust process, in described breathing process, each described compressing mechanism is drawn into corresponding described discharge chambe with low pressure refrigerant gas from described induction chamber, in described compression process, each described compressing mechanism compresses described refrigerant gas in corresponding described discharge chambe, in described exhaust process, each compressing mechanism arrives described exhaust chamber with the high-pressure refrigeration gas discharging in corresponding described discharge chambe
Described the first compressing mechanism comprises the first cylinder chamber, the first rotor and a plurality of primary blades, described the first cylinder chamber is formed in the described housing, described the first rotor is arranged in described the first cylinder chamber with rotation when described live axle rotates, described the first rotor has a plurality of primary blades grooves that radially extend, each described primary blades is arranged in one of them described primary blades groove and can gives prominence to and retract
The described pressing chamber of described the first compressing mechanism is limited by outer surface and the described primary blades of the internal surface of described the first cylinder chamber, described the first rotor, the described pressing chamber of wherein said the first compressing mechanism is located at the position in described pressing chamber the place ahead of described the second compressing mechanism
Described the second compressing mechanism comprises the second cylinder chamber, the second rotor and a plurality of back blades, described the second cylinder chamber is formed in the described housing, described the second rotor is arranged in described the second cylinder chamber with rotation when described live axle rotates, described the second rotor has a plurality of back blades grooves that radially extend, each described back blades is arranged in one of them described back blades groove and can gives prominence to and retract, and
The described pressing chamber of described the second compressing mechanism is limited by the internal surface of described the second cylinder chamber, described bitrochanteric outer surface and described back blades, and described cascade connection type blade compressor is characterised in that
The bottom surface of each described primary blades limits main back pressure chamber with corresponding described primary blades groove,
The bottom surface of each described back blades limits secondary back pressure chamber with corresponding described back blades groove,
Described housing comprises:
Shell, described shell have air-breathing entrance and the exhaust outlet that is connected to the outside;
The first side plate, described the first side plate are contained in the described shell and limit described induction chamber so that described induction chamber is communicated with described air-breathing entrance with described shell;
The second side plate, described the second side plate be contained in the described shell and make described the first compressing mechanism and described the second compressing mechanism separated from one another;
The 3rd side plate, described the 3rd side plate are contained in the described shell and with described shell and limit exhaust chamber so that described exhaust chamber is communicated with described exhaust outlet;
The first cylinder block, described the first cylinder block are contained in the described shell and when remaining between described the first side plate and described the second side plate and form described the first cylinder chamber; And
The second cylinder block, described the second cylinder block is contained in the described shell, and described the second cylinder block remains between described the second plate and described the 3rd side plate simultaneously, forms thus described the second cylinder chamber;
Wherein, described the first side plate, described the first cylinder block, described the second side plate, described the second cylinder block and described the 3rd side plate form inner housing,
Described inner housing has public passage, the first service duct and the second service duct, described public passage extends to be communicated with described exhaust chamber at the longitudinal direction of described live axle, described the first service duct is connected the described main back pressure chamber of described public passage and each, and described the second service duct is connected the described secondary back pressure chamber of described public passage and each.
2. cascade connection type blade compressor according to claim 1, wherein
Described the first service duct is formed in described the second side plate, and
Described the second service duct is formed in described the 3rd side plate.
3. cascade connection type blade compressor according to claim 1, wherein
Described the first service duct is formed in described the first side plate, and
Described the second service duct is formed in described the 3rd side plate.
4. cascade connection type blade compressor according to claim 1, wherein
Described the first service duct is formed in described the first side plate, and
Described the second service duct is formed in described the second side plate.
5. cascade connection type blade compressor according to claim 1, wherein said the first service duct and described the second service duct are formed in described the second side plate.
6. each described cascade connection type blade compressor in 5 according to claim 1, wherein
Described shell comprises: have air-breathing entrance and limit the front shell member of described induction chamber with described the first side plate; And have exhaust outlet and limit the rear portion housing structure of described exhaust chamber with described the 3rd side plate,
Described the first cylinder block and described the second cylinder block are universal component,
Described the first rotor and described the second rotor are universal component, and
Described primary blades and described back blades are universal component.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-076726 | 2012-03-29 | ||
| JP2012076726A JP5729342B2 (en) | 2012-03-29 | 2012-03-29 | Tandem vane compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103362809A true CN103362809A (en) | 2013-10-23 |
| CN103362809B CN103362809B (en) | 2016-08-17 |
Family
ID=49364878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310102343.4A Active CN103362809B (en) | 2012-03-29 | 2013-03-27 | Tandem type blade compressor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5729342B2 (en) |
| CN (1) | CN103362809B (en) |
| IN (1) | IN2013CH01370A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5585617B2 (en) * | 2012-06-26 | 2014-09-10 | 株式会社豊田自動織機 | Tandem vane compressor |
| CN103498795A (en) * | 2013-10-08 | 2014-01-08 | 天津商业大学 | Single-machine and double-grade slide sheet type refrigeration compressor |
| KR20230066964A (en) * | 2021-11-08 | 2023-05-16 | 한온시스템 주식회사 | Vane rotary compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294788A (en) * | 1986-06-12 | 1987-12-22 | Toyoda Mach Works Ltd | Oil pump |
| JPH03102086U (en) * | 1990-02-08 | 1991-10-24 | ||
| JP2008157172A (en) * | 2006-12-26 | 2008-07-10 | Calsonic Compressor Inc | Gas compressor |
| JP2010001835A (en) * | 2008-06-20 | 2010-01-07 | Calsonic Kansei Corp | Gas compressor |
| CN102374156A (en) * | 2010-08-17 | 2012-03-14 | 株式会社丰田自动织机 | Compressor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134790U (en) * | 1988-03-04 | 1989-09-14 | ||
| JPH07151083A (en) * | 1993-11-29 | 1995-06-13 | Nippondenso Co Ltd | Vane type compressor |
| JP4000634B2 (en) * | 1997-09-05 | 2007-10-31 | 株式会社デンソー | Scroll compressor |
-
2012
- 2012-03-29 JP JP2012076726A patent/JP5729342B2/en active Active
-
2013
- 2013-03-27 IN IN1370CH2013 patent/IN2013CH01370A/en unknown
- 2013-03-27 CN CN201310102343.4A patent/CN103362809B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294788A (en) * | 1986-06-12 | 1987-12-22 | Toyoda Mach Works Ltd | Oil pump |
| JPH03102086U (en) * | 1990-02-08 | 1991-10-24 | ||
| JP2008157172A (en) * | 2006-12-26 | 2008-07-10 | Calsonic Compressor Inc | Gas compressor |
| JP2010001835A (en) * | 2008-06-20 | 2010-01-07 | Calsonic Kansei Corp | Gas compressor |
| CN102374156A (en) * | 2010-08-17 | 2012-03-14 | 株式会社丰田自动织机 | Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2013CH01370A (en) | 2015-08-14 |
| JP2013204555A (en) | 2013-10-07 |
| CN103362809B (en) | 2016-08-17 |
| JP5729342B2 (en) | 2015-06-03 |
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