CN208900350U - Pump assembly and rotary blade type compressor - Google Patents

Abstract

The utility model provides a kind of pump assembly and rotary blade type compressor, is related to Compressor Technology field.Including cylinder, main shaft and position-limit mechanism, central part is provided on the main shaft, the centre is circumferentially provided with multiple sliding vane grooves in the inner cavity of the cylinder, along the central part, is slidably provided with slide plate in each sliding vane groove；The first end of the slide plate forms back pressure oil pocket for contacting with the inner wall of the cylinder between the second end of the slide plate and the sliding vane groove；The position-limit mechanism is set in the inner cavity of the cylinder, and the position-limit mechanism pushes against the slide plate in the side of the slide plate, forms the resistance for the inner wall for preventing the slide plate second end to be detached from the cylinder.The position-limit mechanism can provide thrust for the slide plate to guarantee that the slide plate and the cylinder are in close contact, do not depart from, to prevent compression chamber from leaking, be also prevented from noise caused by the slide plate is detached from.

Description

Pump assembly and rotary blade type compressor

Technical field

The utility model relates to Compressor Technology fields, in particular to a kind of pump assembly that anti-slip limiting plate is detached from And rotary blade type compressor.

Background technique

Rotary blade type compressor is a kind of positive displacement compressor high-efficient, small in size, will be formed and is pressed in cylinder using slide plate Contracting chamber, the volume of compression chamber changes in slide plate rotation process, carries out air-breathing, exhaust and compression to refrigerant.

In order to guarantee that slide plate can smoothly stretch out rotary blade type compressor in the process of running, rotary blade type compressor is in slide plate tail Portion can be filled with high pressure or middle pressure oil, provide power for slide plate back, for overcoming the gas pressure of slide plate head front and back cavity With frictional force etc..But insufficient in the backside pressure of exhaust phase, slide plate, will lead to slide plate head can not keep connecing with cylinder inner wall Touching, to be detached from, compression chamber generates leakage, at the same slide plate be detached from after again with shock can be generated when cylinder contact, cause to press Contracting machine noise increases.

Utility model content

To solve the problems, such as that slide plate is easily detached from exhaust phase and cylinder in the prior art, the main purpose of the utility model It is, a kind of compressor is provided and is kept in contact in operational process slide plate and cylinder inner wall, do not occur to be detached from, noise will not be generated Pump assembly and rotary blade type compressor.

In a first aspect, the utility model embodiment provides pump assembly, including cylinder, main shaft and position-limit mechanism,

Central part is provided on the main shaft, the centre is circumferential along the central part in the inner cavity of the cylinder Multiple sliding vane grooves are provided with, are slidably provided with slide plate in each sliding vane groove；

The first end of the slide plate with the inner wall of the cylinder for contacting, the second end of the slide plate and the sliding vane groove Between formed back pressure oil pocket；

The position-limit mechanism is set in the inner cavity of the cylinder, and the position-limit mechanism pushes against institute in the side of the slide plate Slide plate is stated, the resistance for the inner wall for preventing the slide plate second end to be detached from the cylinder is formed.

Further, in one preferred embodiment of the utility model, the position-limit mechanism includes the first position-limit mechanism With the second position-limit mechanism, first position-limit mechanism is set on the slide plate, and second position-limit mechanism is set to the master On axis；

First position-limit mechanism is notch, and second position-limit mechanism includes spacer pin and elastic component, the elastic component One end be fixedly connected with the main shaft, the other end of the elastic component is fixedly connected with one end of the spacer pin, the limit The other end of position pin with the notch for offseting.

Further, in one preferred embodiment of the utility model, the notch is longitudinally disposed along the slide plate, The length of the notch is equal to or less than the length of the slide plate in the longitudinal direction.

Further, in one preferred embodiment of the utility model, further include the upper flange that is sheathed on main shaft and Back pressure slot is provided on lower flange, the upper flange and the lower flange.

Further, in one preferred embodiment of the utility model, the position-limit mechanism includes the first position-limit mechanism With the second position-limit mechanism, first position-limit mechanism is set on the slide plate, and second position-limit mechanism is set on described On flange or lower flange；

First position-limit mechanism is notch, and second position-limit mechanism includes spacer pin and elastic component, the elastic component One end be fixedly connected with the upper flange or lower flange, the other end of the elastic component and one end of the spacer pin are fixed Connection, the other end of the spacer pin with the notch for offseting.

Further, in one preferred embodiment of the utility model, the notch is set to the upside of the slide plate Face or downside.

Further, in one preferred embodiment of the utility model, the notch is circular-shaped notch；Alternatively, institute Stating notch includes sequentially connected first segmental arc, straightway and the second segmental arc.

Further, in one preferred embodiment of the utility model, the inner cavity of the cylinder includes exhaust section and suction Gas section, the exhaust section are provided with exhaust outlet, and the inspiratory limb is provided with air entry.

Second aspect, the utility model embodiment provide a kind of rotary blade type compressor, including described in any of the above embodiments Pump assembly.

The pump assembly and rotary blade type compressor that an embodiment of the present invention provides, are provided in the inner cavity of the cylinder The position-limit mechanism, the position-limit mechanism act on the slide plate.It is driven in the slide plate rotary course in the main shaft, works as institute When stating slide plate back pressure deficiency, the position-limit mechanism can provide thrust for the slide plate to guarantee that the slide plate and the cylinder are tight Contiguity touching does not depart from, to prevent compression chamber from leaking, is also prevented from noise caused by the slide plate is detached from.

Detailed description of the invention

It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other relevant attached drawings.

Fig. 1 is the top view for the pump assembly that an embodiment of the present invention provides；

Fig. 2 is the structural schematic diagram for the slide plate that an embodiment of the present invention provides；

Fig. 3 is the structural schematic diagram for the slide plate that another embodiment of the utility model provides；

Fig. 4 is the structural schematic diagram for the slide plate that another embodiment of the utility model provides；

Fig. 5 is the structural schematic diagram for the slide plate that the utility model other embodiments provide；

Fig. 6 is the explosive view of pump assembly；

Fig. 7 is the structural schematic diagram for the spacer pin that corresponding diagram 2 is arranged in the utility model embodiment；

Fig. 8 is the structural schematic diagram for the spacer pin being arranged in another embodiment of the utility model；

Fig. 9 is air-breathing or compression angle downslide piece and pin force analysis figure in an embodiment of the present invention；

Figure 10 is air-breathing or compression angle downslide piece and pin force analysis figure in another embodiment of the utility model；

Figure 11 is that slide plate and pin force analysis figure under angle are vented in an embodiment of the present invention；

Figure 12 is that slide plate and pin force analysis figure under angle are vented in another embodiment of the utility model；

Figure 13 is the notch schematic diagram provided in another embodiment of the utility model；

Figure 14 is when notch is set to the slide plate upper side in the schematic diagram for being vented angle；

Figure 15 is schematic diagram when notch is set to the slide plate downside in air-breathing angle.

Appended drawing reference:

1- main shaft 11- central part 12- sliding vane groove 13- back pressure oil pocket

2- cylinder

3- slide plate 31- the first slide plate 32- the second slide plate 33- third slide plate

4- notch 41- the first segmental arc 42- straightway the second segmental arc of 43-

5- the second position-limit mechanism 51- spacer pin 52- elastic component

71 back pressure slot of 6- upper flange 7- lower flange

8- exhaust outlet 9- air entry

Specific embodiment

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the application embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is according to the top view of the pump assembly shown in an embodiment of the present invention, and Fig. 2 to Fig. 5 is according to this reality The schematic diagram of different form notch 4 is set on the slide plate 3 shown in new embodiment；Fig. 7 to Fig. 8 is according to the utility model reality Apply two kinds of set-up modes of the spacer pin 51 exemplified；Fig. 9 to Figure 12 be according to shown in the utility model embodiment in difference The force analysis figure of stage slide plate 3 and spacer pin 51；Figure 13 is the another kind according to the notch 4 shown in the utility model embodiment Setting form；Figure 14 to Figure 15 is the structural schematic diagram being set to the second position-limit mechanism 5 on upper flange 6 or lower flange 7；Fig. 6 It is the explosive view of pump assembly.

As shown in fig. 6, the pump assembly that an embodiment of the present invention provides, comprising: cylinder 2, main shaft 1,6 and of upper flange Lower flange 7 is provided with multiple sliding vane grooves 12 on the central part 11 of main shaft 1, and sliding is provided with slide plate 3 in each sliding vane groove 12, main The central part 11 and slide plate 3 of axis 1 are respectively positioned on the inner cavity of cylinder 2, and upper flange 6, lower flange 7 are sheathed on main shaft 1, upper flange 6 Gap between main shaft 1 forms throttling oil circuit.Cylinder 2 is separated into multiple cavities by multiple slide plates 3, is provided in the present embodiment First slide plate 31, the second slide plate 32 and third slide plate 33, main shaft 1 drive three slide plates 3 constantly to rotate, slide plate 3 by centrifugal force and Back pressure effect power is stretched out from sliding vane groove 12, and the first end of slide plate 3 is attached on 2 inner wall of cylinder.In 1 rotation process of main shaft, such as Fig. 1 Shown, the volume of the crescent moon cavity formed between adjacent 2 slide plates 3 and cylinder 2 and upper lower flange 7 constantly changes.Each chamber The volume of body first increases to maximum value, then gradually decreases to minimum value by maximum value, to complete air-breathing, compression and be vented Journey.Slide plate 3 is first stretched out and then is retracted in sliding vane groove 12, constantly does periodic reverse motion.

As shown in Figure 1, the inner cavity of the cylinder 2 includes exhaust section and inspiratory limb, the exhaust section is provided with exhaust outlet 8, The inspiratory limb is provided with air entry 9.

Wherein, the axial direction along main shaft 1 is provided with working connection, shape between the second end and the sliding vane groove 12 of the slide plate 3 At back pressure oil pocket 13, it is provided with back pressure slot 71 on upper flange 6 and lower flange 7, is formed in back pressure oil pocket 13 and 71 cavity of back pressure slot Channel, the channel and throttling oil communication, guarantee oily flow channel.The first end of the slide plate 3 be used for in the cylinder 2 Wall contact, above-mentioned channel is introduced into oil sump high pressure or middle pressure oil (generated and throttled by circulation passage) provided for 3 back of slide plate it is dynamic Power, to overcome the gas pressure and frictional force of backside volume before 3 first end of slide plate.

But even higher than shell pressure at expulsion when chamber pressure all reaches pressure at expulsion before and after slide plate 3 first end, example Such as there is exhaust valve plate, when having certain overcompression (actual compression chamber chamber pressure is higher than shell), back pressure deficiency be may cause 3 head of slide plate can not be kept in contact with 2 inner wall of cylinder, so that slide plate 3, which occurs, is detached from 2 inner wall of cylinder, generate leakage, while slide plate Shock can be generated when contacting again with 2 inner wall of cylinder after 3 disengagings, causes compressor noise to increase, generate energy loss, reliability drop The problems such as low.Limited position mechanism is arranged in pump assembly provided by the embodiment of the utility model, and the position-limit mechanism is set to described In the inner cavity of cylinder 2, for pushing against the slide plate 3 in the side of the slide plate 3, so that being formed when slide plate 3 will be detached from prevents 3 second end of slide plate is detached from the resistance of the inner wall of the cylinder 2.Slide plate 3 and 2 inner wall of cylinder is kept to be constantly in contact shape State also avoids the generation of noise so that the cavity of 3 front and rear sides of slide plate will not leak, and improves the stability of compressor.

Wherein, as shown in figure 1 to figure 13, the pump assembly provided in one optimum embodiment of the utility model, the limit Mechanism includes the first position-limit mechanism and the second position-limit mechanism 5, and first position-limit mechanism is set on the slide plate 3, and described the Two position-limit mechanisms 5 are set on the main shaft 1；First position-limit mechanism is notch 4, and second position-limit mechanism 5 includes limit Position pin 51 and elastic component 52, elastic component 52 can be spring, and one end of the elastic component 52 is fixedly connected with the main shaft 1, described The other end of elastic component 52 is fixedly connected with one end of the spacer pin 51, and the other end of the spacer pin 51 is used to lack with described Mouth 4 offsets.Spacer pin 51 and spring stop slide plate 3 to retract the resistance of sliding vane groove 12 to provide at the notch 4 of slide plate 3, to protect Demonstrate,prove the contact of slide plate 3 and 2 inner wall of cylinder.In the present embodiment, the side of slide plate 3, the setting of the second position-limit mechanism 5 is arranged in notch 4 On main shaft 1 and spacer pin 51 can extend out to out of sliding vane groove 12 space and interact with the notch 4 on the slide plate 3, Resistance is provided for slide plate 3.

In the present embodiment, as shown in Figures 2 to 5, the notch 4 is longitudinally disposed along the slide plate 3, the notch 4 Length is equal to or less than the length of the slide plate 3 in the longitudinal direction.Longitudinally refer to the axial direction of main shaft 1 when the pump housing is placed herein.It is sliding The notch 4 that 3 side of piece opens up can run through the longitudinal length of entire slide plate 3 as shown in Fig. 2, or in the different positions of slide plate 3 It is as shown in Figures 3 to 5 to set one section of notch 4 of setting.The shape and size of corresponding spacer pin 51 are matched with notch 4, such as This perforative 4 form of notch of 51 structure corresponding diagram of spacer pin 2 of Fig. 7,51 structure of spacer pin of Fig. 8 can corresponding diagram 3 to Fig. 5's 4 form of notch.

The pin head part of the notch 4 of slide plate 3 and spacer pin 51 is uniform and stable transition structure, and 3 notch of slide plate, 4 circular arc path Greater than the head circular arc path of spacer pin 51.4 shape of notch in the utility model embodiment is not particularly limited, and can be diagram It is arc-shaped, may be set to be shown in Figure 13 include sequentially connected first segmental arc 41, straightway 42 and the second segmental arc 43, The notch 4 of both ends circular arc, middle straight line structure can separate the angle that spacer pin 51 enters and exit 3 notch 4 of slide plate with wide-angle Span.The shape of spacer pin 51 with no restrictions, can be shape shown in figure, may be set to be column structure, protect Card can be with smooth transition with 3 cooperation position of slide plate.

The second position-limit mechanism 5 is arranged on main shaft 1 in the present embodiment, position is fixed, because slide plate 3 is done in sliding vane groove 12 It moves back and forth, therefore in different angle, slide plate 3 is different from the position that the second position-limit mechanism 5 cooperates, and Fig. 9 to Figure 12 illustrates 3 kinds In the case of slide plate 3 and the second position-limit mechanism 5 mated condition.

As shown in Fig. 1, Fig. 9 to Figure 10, under air-breathing angle, for slide plate 3 when gradually stretching out, spacer pin 51 can be introduced into cunning Then the notch 4 of piece 3 exits 4 position of notch again.Slide plate 3 is located at the position of the first slide plate 31, enters slide plate in spacer pin 51 When 3 notch 4, spacer pin 51 forms one to the first slide plate 31 under spring force and pushes the power F1 stretched out, the first slide plate 31 It can more smoothly stretch out.When exiting 3 notch 4 of slide plate with spacer pin 51, slide plate 3 is moved at the position of the second slide plate 32, Spacer pin 51 forms the power F1 for hindering to stretch out to slide plate 3 under spring force, but at this time since 3 first end of slide plate is pressure of inspiration(Pi) Power F2 (is connected to) with air intake passage, and back pressure F3 is high pressure (oil of high pressure oil sump introduces), and F3 > > F1+F2 equally may be implemented 3 first end of slide plate and 2 inner wall of cylinder are close to.

As shown in Fig. 1, Figure 11 to Figure 12, in the case where being vented angle, slide plate 3 gradually retracts sliding vane groove 12, and spacer pin 51 is advanced Enter 3 notch 4 of slide plate, then exits 4 position of notch again.At the position of the first slide plate 31, when spacer pin 51 enters notch 4, limit Position pin 51 forms the power for retracting sliding vane groove 12, under this angle, F3 > F1+F2 to slide plate 3 under spring force.Slide plate 3 move at the position of the second slide plate 32, and when spacer pin 51 will exit 3 notch 4 of slide plate, spacer pin 51 is under spring force The power F1 for hindering to retract is formed to slide plate 3, as F2 > F3, it is ensured that F2+F1 > F3, to guarantee that 3 head of slide plate is gentle Cylinder 2 is close to, and is not detached from.At 33 position of third slide plate, slide plate 3 easily retracts sliding vane groove 12, be arranged in the present embodiment Two position-limit mechanisms 5, spacer pin 51 is that notch 4 provides a resistance F1 at this position, and slide plate 3 is prevented to retract sliding vane groove 12.

In other embodiments, in the exhaust angle in the second slide plate 32 to 33 range of third slide plate, 3 notch 4 of slide plate with The effect that spacer pin 51 cooperates is particularly significant, needs according to the angle tune for being most likely to occur disengaging in actual compressor operating condition The position of whole spacer pin 51 and notch 4, and adjust the elastic force of elastic component 52 in spacer pin 51.

Wherein, the above-mentioned F1 being related to is the thrust or resistance of spacer pin 51, and F2 is pressure of inspiration(Pi), and F3 is back pressure.

In addition, the second position-limit mechanism 5 referred in the present embodiment can guarantee at lesser spring force (equivalent F2), Biggish power F1 along slide plate 3 vibration-direction can be provided slide plate 3 under certain angles, to realize " art is good for strength " Effect.

In above-described embodiment, as shown in Figure 1, the side of slide plate 3, the second position-limit mechanism 5 and 4 phase of notch is arranged in notch 4 To setting, the second position-limit mechanism 5 is located at 1 outside of main shaft relative to slide plate 3 in this embodiment；In other embodiments, notch 4 is set It sets in the other side of slide plate 3, the second position-limit mechanism 5 is set to the inside of main shaft 1 relative to slide plate 3.It is further possible to It is respectively provided with the second position-limit mechanism 5 on the main shaft 1 of 3 two sides of slide plate, meets multiple angle back pressures and demand is provided.Above-described embodiment provides The first position-limit mechanism be notch 4, the second position-limit mechanism 5 is pin spring structure, and still, other realize the application said effect All within the scope of protection of this application, such as other position-limit mechanisms such as retention bead should be arranged in position-limit mechanism.

In the pump assembly that another embodiment of the utility model provides, in Figure 14 to 15, first position-limit mechanism is set It is placed on the slide plate 3, second position-limit mechanism 5 is set on the upper flange 6 or lower flange 7；First limit Mechanism be notch 4, second position-limit mechanism 5 include spacer pin 51 and elastic component 52, one end of the elastic component 52 with it is described Upper flange 6 or lower flange 7 are fixedly connected, and the other end of the elastic component 52 is fixedly connected with one end of the spacer pin 51, The other end of the spacer pin 51 with the notch 4 for offseting.

In the present embodiment, the notch 4 is set to upper side or the downside of the slide plate 3；The position of corresponding notch 4 Second position-limit mechanism 5 is arranged on upper flange 6 or lower flange 7.Due in compressor rotation process, upper flange 6 and lower flange 7 Be it is no motion of, in the range of the second position-limit mechanism 5 is set on flange and is only capable of in a certain low-angle its act on, effect be not so good as It is good that effect is set on main shaft 1.51 Force principle of spacer pin be arranged on main shaft 1 situation it is identical, due to flange be it is fixed, because This can only have an effect in a certain angle, be subject to certain restrictions.When determine slide plate 3 can only a certain angle there are problems that disengaging, can To use the program, guarantee that this angle is not detached from.

The utility model embodiment additionally provides a kind of rotary blade type compressor, including pump housing group described in any of the above embodiments Part.In the process of running, 3 first end of slide plate and 2 inner wall of cylinder are constantly in contact shape to compressor comprising above-mentioned pump assembly State, compressor reliability is high, will not generate noise because slide plate 3 falls off.

In the description of the present invention, it should be understood that term " on ", "lower", "vertical", "horizontal", "top", The orientation or positional relationship of the instructions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " be orientation based on the figure or Corresponding orientation when positional relationship namely air-conditioning normal mounting.It is merely for convenience of describing the present invention and simplifying the description, and It is not that the equipment of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore It should not be understood as limiting the present invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of pump assembly, which is characterized in that including cylinder (2), main shaft (1) and position-limit mechanism,

It is provided with central part (11) on the main shaft (1), the central part (11) is located at the inner cavity of the cylinder (2), along described Central part (11) is circumferentially provided with multiple sliding vane grooves (12), is slidably provided with slide plate (3) in each sliding vane groove (12)；

The first end of the slide plate (3) for being contacted with the inner wall of the cylinder (2), the second end of the slide plate (3) with it is described Back pressure oil pocket (13) are formed between sliding vane groove (12)；

The position-limit mechanism is set in the inner cavity of the cylinder (2), and the position-limit mechanism is pushed against in the side of the slide plate (3) The slide plate (3) forms the resistance for the inner wall for preventing the slide plate (3) second end to be detached from the cylinder (2).

2. pump assembly according to claim 1, which is characterized in that the position-limit mechanism includes the first position-limit mechanism and the Two position-limit mechanisms (5), first position-limit mechanism are set on the slide plate (3), and second position-limit mechanism (5) is set to institute It states on main shaft (1)；

First position-limit mechanism is notch (4), and second position-limit mechanism (5) includes spacer pin (51) and elastic component (52), One end of the elastic component (52) is fixedly connected with the main shaft (1), the other end and the spacer pin of the elastic component (52) (51) one end is fixedly connected, and the other end of the spacer pin (51) with the notch (4) for offseting.

3. pump assembly according to claim 2, which is characterized in that the notch (4) sets along the longitudinal direction of the slide plate (3) It sets, the length of the notch (4) is equal to or less than the length of the slide plate (3) in the longitudinal direction.

4. pump assembly according to claim 1, which is characterized in that further include the upper flange (6) being sheathed on main shaft (1) With lower flange (7), back pressure slot (71) are provided on the upper flange (6) and the lower flange (7).

5. pump assembly according to claim 4, which is characterized in that the position-limit mechanism includes the first position-limit mechanism and the Two position-limit mechanisms (5), first position-limit mechanism are set on the slide plate (3), and second position-limit mechanism (5) is set to institute It states on upper flange (6) or lower flange (7)；

First position-limit mechanism is notch (4), and second position-limit mechanism (5) includes spacer pin (51) and elastic component (52), One end of the elastic component (52) is fixedly connected with the upper flange (6) or lower flange (7), the elastic component (52) it is another End is fixedly connected with one end of the spacer pin (51), and the other end of the spacer pin (51) with the notch (4) for offseting.

6. pump assembly according to claim 5, which is characterized in that the notch (4) is set to the upper of the slide plate (3) Side or downside.

7. pump assembly according to claim 2 or 5, which is characterized in that the notch (4) is circular-shaped notch (4)；Or Person, the notch (4) include sequentially connected first segmental arc (41), straightway (42) and the second segmental arc (43).

8. pump assembly according to claim 2 or 5, which is characterized in that the path of the notch (4) is greater than the limit Sell the width of the other end of (51).

9. pump assembly according to claim 1, which is characterized in that the inner cavity of the cylinder (2) includes exhaust section and suction Gas section, the exhaust section are provided with exhaust outlet (8), and the inspiratory limb is provided with air entry (9).

10. a kind of rotary blade type compressor, which is characterized in that including the described in any item pump assemblies of claim 1-9.