CN105134596B - Compound compressor - Google Patents
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- CN105134596B CN105134596B CN201410245774.0A CN201410245774A CN105134596B CN 105134596 B CN105134596 B CN 105134596B CN 201410245774 A CN201410245774 A CN 201410245774A CN 105134596 B CN105134596 B CN 105134596B
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Abstract
The present invention provides a kind of compound compressors.The compound compressor includes crankshaft and multi-stage cylinder, multistage eccentric part is provided in the axial direction of crankshaft, multistage eccentric part is arranged correspondingly with multi-stage cylinder, within the scope of the phase difference of air-breathing start time is at 120 ° to 240 °, second level cylinder and third level cylinder are within the scope of the phase difference of air-breathing start time is at 120 ° to 240 ° for first order cylinder and second level cylinder.Compound compressor according to the present invention, can be avoided gas accumulation causes the pressure fluctuation of intermediate cavity excessive in the middle cavity of prime cylinder and rear class cylinder, guarantees the continuity and smoothness of the air-breathing of front stage cylinder, and then improve the performance of compound compressor.
Description
Technical field
The present invention relates to compressor mechanical technical fields, more particularly, to a kind of compound compressor.
Background technique
Existing air-conditioning or water-heater system mostly use common rotor formula compressor, but when air-conditioning or water heater use exist
When low temperature environment, compressor refrigerant flow is relatively low, and the pressure ratio of single-stage will greatly improve when compressor is run, performance drop
Low, compressor longtime running less reliable is easily damaged.And Two-stage Compression cylinder mesolow grade cylinder and hiigh pressure stage gas at present
Air-breathing linking between cylinder is not reasonable, and when often will appear hiigh pressure stage cylinder and being in inspiration peak, low-pressure stage cylinder is not arrived
It up to exhaust peak position or is that distance is vented the position of peak value farther out；Or hiigh pressure stage cylinder gettering rate it is lower when, it is low
Cylinder of arbitrarily downgrading has been in exhaust peak position, these situations will lead to height arbitrarily downgrade between suction and discharge pulsation, low-pressure stage with
The continuity of suction and discharge will directly influence the performance of compressor between hiigh pressure stage, when one stage of compression gas cannot be in time by high pressure
When grade cylinder sucking, one stage of compression gas leads to the pressure rise of intermediate cavity by lodging in intermediate cavity；And work as hiigh pressure stage cylinder
If low-pressure stage cylinder also reaches far away exhaust peak value when in inspiration peak, this will will lead to hiigh pressure stage cylinder inspiratory capacity deficiency,
Decline the performance of compressor.
Summary of the invention
The present invention is intended to provide a kind of compound compressor, to solve asking for existing compound compressor performance reliability difference
Topic.
In order to solve the above technical problems, the present invention provides a kind of compound compressor, the compound compressor include crankshaft and
Multi-stage cylinder is provided with multistage eccentric part in the axial direction of crankshaft, and multistage eccentric part is arranged correspondingly with multi-stage cylinder, and first
Grade cylinder and second level cylinder are within the scope of the phase difference of air-breathing start time is at 120 ° to 240 °, second level cylinder and the
Three-stage cylinder is within the scope of the phase difference of air-breathing start time is at 120 ° to 240 °.
Further, when the pressure at expulsion of second level cylinder/first order cylinder pressure of inspiration(Pi)≤2, first order cylinder
With the second level cylinder within the scope of phase difference of air-breathing start time is at 120 ° to 180 °；When the exhaust pressure of third level cylinder
When power/second level cylinder pressure of inspiration(Pi)≤2, the phase difference of second level cylinder and third level cylinder in air-breathing start time exists
Within the scope of 120 ° to 180 °.
Further, when the pressure at expulsion of second level cylinder/first order cylinder pressure of inspiration(Pi) > 2, first order cylinder and
Second level cylinder is within the scope of the phase difference of air-breathing start time is at 180 ° to 240 °；When the exhaust pressure of third level cylinder
When power/second level cylinder pressure of inspiration(Pi) > 2, the phase difference of second level cylinder and third level cylinder in air-breathing start time exists
Within the scope of 180 ° to 240 °.
Further, multi-stage cylinder is three-stage cylinder, and multistage eccentric part is three-level eccentric part, and three-level eccentric part is along crankshaft
Axial direction on the first order eccentric part, second level eccentric part and the third level eccentric part that set gradually, first order eccentric part, second
Grade eccentric part and third level eccentric part are arranged correspondingly with three-stage cylinder.
Further, the eccentric direction of first order eccentric part is with the eccentric direction of second level eccentric part on the contrary, the second level is inclined
The eccentric direction of center portion is identical as the eccentric direction of third level eccentric part；The slide plate of the corresponding first order cylinder of first order eccentric part
Angle between the slide plate of the second level corresponding with second level eccentric part cylinder is 0 °, the corresponding third level gas of third level eccentric part
Angle between the slide plate of the slide plate of cylinder second level cylinder corresponding with second level eccentric part is 180 °.
Further, the eccentric direction of first order eccentric part is with the eccentric direction of second level eccentric part on the contrary, the second level is inclined
The eccentric direction of center portion is opposite with the eccentric direction of third level eccentric part；The slide plate of the corresponding first order cylinder of first order eccentric part
Angle between the slide plate of the second level corresponding with second level eccentric part cylinder is 0 °, the corresponding third level gas of third level eccentric part
Angle between the slide plate of the slide plate of cylinder second level cylinder corresponding with second level eccentric part is 0 °.
Further, the eccentric direction of first order eccentric part is identical as the eccentric direction of second level eccentric part, and the second level is inclined
The eccentric direction of center portion is opposite with the eccentric direction of third level eccentric part；The slide plate of the corresponding first order cylinder of first order eccentric part
Angle between the slide plate of the second level corresponding with second level eccentric part cylinder is 180 °, the corresponding third level of third level eccentric part
Angle between the slide plate of the slide plate of cylinder second level cylinder corresponding with second level eccentric part is 0 °.
Further, along the direction of rotation of crankshaft: the eccentric direction line of first order eccentric part to the inclined of second level eccentric part
Angle between heart direction line is 240 °, the eccentric direction line of the eccentric direction line of second level eccentric part to third level eccentric part it
Between angle be 240 °；The slide plate of the corresponding first order cylinder of first order eccentric part is to the corresponding second level gas of second level eccentric part
Angle between the slide plate of cylinder is 60 °, and the slide plate of the corresponding second level cylinder of second level eccentric part is corresponding to third level eccentric part
Third level cylinder slide plate between angle be 60 °.
Further, along the direction of rotation of crankshaft: the eccentric direction line of first order eccentric part to the inclined of second level eccentric part
Angle between heart direction line is 120 °, the eccentric direction line of the eccentric direction line of second level eccentric part to third level eccentric part it
Between angle be 120 °；The slide plate of the corresponding first order cylinder of first order eccentric part is to the corresponding second level gas of second level eccentric part
Angle between the slide plate of cylinder is 300 °, and the slide plate of the corresponding second level cylinder of second level eccentric part is corresponding to third level eccentric part
Third level cylinder slide plate between angle be 300 °.
Apply the technical scheme of the present invention, due between first order cylinder and second level cylinder, second level cylinder and third
Phase difference between grade cylinder within the scope of 120 ° to 240 °, therefore, is vented near peak value when first order cylinder is in
When, second level cylinder is exactly near inspiration peak；When second level cylinder is near exhaust peak value, at third level cylinder
In this way, second level cylinder can siphon away the gas of first order cylinder and the discharge of third level cylinder in time near inspiration peak, the
Three-stage cylinder can siphon away in time the second level cylinder discharge gas, avoid gas accumulation in the middle cavity between cylinder and
Cause the pressure fluctuation of intermediate cavity excessive, guarantee the continuity and smoothness of the air-breathing of front stage cylinder, and then improves multistage pressure
The performance of contracting machine.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the cross-sectional view of the compound compressor pump housing in the present invention；
Fig. 2 diagrammatically illustrates the main view of the crankshaft of the first embodiment of the present invention；
Fig. 3 diagrammatically illustrates the right view of the crankshaft of the first embodiment of the present invention；
Fig. 4 diagrammatically illustrates the A-A direction view in Fig. 1；
Fig. 5 diagrammatically illustrates the B-B direction view in Fig. 1；
Fig. 6 diagrammatically illustrates the C-C direction view in Fig. 1；
Fig. 7 diagrammatically illustrates the main view of the crankshaft of the second embodiment of the present invention；
Fig. 8 diagrammatically illustrates the right view of the crankshaft of the second embodiment of the present invention；
Fig. 9 schematically shows the direction view corresponding to the position Fig. 4 of the power second embodiment of the present invention；
Figure 10 diagrammatically illustrates the direction view corresponding to the position Fig. 5 of the second embodiment of the present invention；
Figure 11 diagrammatically illustrates the direction view corresponding to the position Fig. 6 of the second embodiment of the present invention；
Figure 12 diagrammatically illustrates the main view of the crankshaft of the third embodiment of the present invention；
Figure 13 diagrammatically illustrates the right view of the crankshaft of the third embodiment of the present invention；
Figure 14 schematically shows the direction view corresponding to the position Fig. 4 of the power third embodiment of the present invention；
Figure 15 diagrammatically illustrates the direction view corresponding to the position Fig. 5 of the third embodiment of the present invention；
Figure 16 diagrammatically illustrates the direction view corresponding to the position Fig. 6 of the third embodiment of the present invention；
Figure 17 diagrammatically illustrates the main view of the crankshaft of the fourth embodiment of the present invention；
Figure 18 diagrammatically illustrates the right view of the crankshaft of the fourth embodiment of the present invention；
Figure 19 schematically shows the direction view corresponding to the position Fig. 4 of the power fourth embodiment of the present invention；
Figure 20 diagrammatically illustrates the direction view corresponding to the position Fig. 5 of the fourth embodiment of the present invention；
Figure 21 diagrammatically illustrates the direction view corresponding to the position Fig. 6 of the fourth embodiment of the present invention；
Figure 22 diagrammatically illustrates the main view of the crankshaft of the fifth embodiment of the present invention；
Figure 23 diagrammatically illustrates the right view of the crankshaft of the fifth embodiment of the present invention；
Figure 24 schematically shows the direction view corresponding to the position Fig. 4 of the power fifth embodiment of the present invention；
Figure 25 diagrammatically illustrates the direction view corresponding to the position Fig. 5 of the fifth embodiment of the present invention；And
Figure 26 diagrammatically illustrates the direction view corresponding to the position Fig. 6 of the fifth embodiment of the present invention.
Description of symbols: 100, cylinder；110, first order cylinder；111, the first air entry；112, first row port；
120, second level cylinder；121, the second air entry；122, second exhaust port；130, third level cylinder；131, third air entry；
132, third exhaust outlet；200, crankshaft；210, first order eccentric part；220, second level eccentric part；230, third level eccentric part；
300, slide plate；400, roller.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Shown in Figure 1, first embodiment according to the present invention provides a kind of compound compressor, the compound compressor
Including crankshaft 200 and multi-stage cylinder 100, multistage eccentric part, multistage eccentric part and multi-stage cylinder are provided in the axial direction of crankshaft 200
100 are arranged correspondingly, and first order cylinder 110 and second level cylinder 120 air-breathing start time phase difference at 120 °
To within the scope of 240 °, second level cylinder 120 and third level cylinder 130 air-breathing start time phase difference at 120 ° extremely
Within the scope of 240 °.According to the present embodiment, due to first order cylinder 110 and second level cylinder 120, second level cylinder 120 with
Phase difference between third level cylinder 130 within the scope of 120 ° to 240 °, therefore, is arranged when first order cylinder 110 is in
When near gas peak value, second level cylinder 120 is exactly near inspiration peak；When second level cylinder 120 is attached in exhaust peak value
When close, third level cylinder 130 is in inspiration peak nearby in this way, second level cylinder 120 can siphon away first order cylinder 110 in time
The gas discharged with third level cylinder 130, third level cylinder 130 can siphon away the gas of the discharge of second level cylinder 120 in time, keep away
Exempt from gas accumulation causes the pressure fluctuation of intermediate cavity excessive in the middle cavity between cylinder 100, guarantees front stage cylinder
Air-breathing continuity and smoothness, and then improve compound compressor performance.
Preferably, when the pressure at expulsion of second level cylinder 120/first order cylinder 110 pressure of inspiration(Pi)≤2, the first order
Cylinder 110 and second level cylinder 120 are within the scope of the phase difference of air-breathing start time is at 120 ° to 180 °；When third level gas
When the pressure at expulsion of cylinder 130/second level cylinder 120 pressure of inspiration(Pi)≤2, second level cylinder 120 and third level cylinder 130 are being inhaled
The phase difference of gas start time is within the scope of 120 ° to 180 °.In the present embodiment, if the compression chamber suction of cylinder at different levels
Gas linking is unreasonable, when second level cylinder 120 (third level cylinder 130) is in inspiration peak, the 110 (second level of first order cylinder
Cylinder 120) and not up to it is vented position of the peak position either apart from exhaust peak value farther out；Or second level cylinder 120 (the
Three-stage cylinder 130) gettering rate it is lower when, first order cylinder 110 (second level cylinder 120) be in exhaust peak value,
Will lead to cylinder height arbitrarily downgrade between suction and discharge pulsation it is larger, and then influence compound compressor performance.When first order cylinder
When 110 (second level cylinder 120) compressed gas cannot be sucked by second level cylinder 120 (third level cylinder 130) in time, gas is discharged
Body leads to the pressure rise of intermediate cavity by lodging in intermediate cavity；And it is inhaled when second level cylinder 120 (third level cylinder 130) is in
If first order cylinder 110 (second level cylinder 120) also reaches far away exhaust peak value when gas peak value, this will will lead to hiigh pressure stage cylinder
Inspiratory capacity is insufficient, causes the decline of compound compressor performance.Through this embodiment, at the compression chamber air-breathing that cylinders at different levels can be made
When peak position, first order cylinder 110 (second level cylinder 120) exhaust reaches or close to exhaust peak position, guarantees at different levels
The continuity and connecting of exhaust and next stage air-breathing reduce pressure fluctuation, improve compound compressor performance.It needs to illustrate
It is that the "/" in the present embodiment indicated is " division sign ".
Preferably, the multi-stage cylinder 100 in the present embodiment is three-stage cylinder, and multistage eccentric part is three-level eccentric part, three-level
Eccentric part is first order eccentric part 210, second level eccentric part 220 and the third level set gradually in the axial direction of crankshaft 200
Eccentric part 230, first order eccentric part 210, second level eccentric part 220 and third level eccentric part 230 and three cylinders 100 are one by one
It is arranged in correspondence with, when crankshaft 200 rotates, by the effect of three-level eccentric part, cylinder 100 is driven to realize its compression function.It needs
It is noted that compound compressor of the invention may be arranged as level Four, Pyatyi, six grades etc. and be arranged over the ground four, five,
Six cylinders, as long as guaranteeing between adjacent two-stage cylinder within the scope of the phase difference of air-breathing start time is at 120 ° to 240 °
, here adjacent is that series is adjacent adjacent in structure without referring to.
The present invention includes to commonly use embodiment as follows, other pass through the eccentric part position angle for changing crankshaft 200 or change
To reach, " phase difference of first order cylinder 110 and second level cylinder 120 in air-breathing start time exists cylinder sliding vane groove position angle
Within the scope of 120 ° to 240 °, second level cylinder 120 and third level cylinder 130 air-breathing start time phase difference at 120 °
Embodiment within the scope of to 240 ° is also within the scope of protection of the invention.
Below by taking the compound compressor with three-stage cylinder as an example, " first order cylinder 110 and second level cylinder 120 are introduced
Air-breathing start time phase difference at 180 °, the phase of second level cylinder 120 and third level cylinder 130 in air-breathing start time
Difference is at 180 ° " when crankshaft and cylinder specific structure:
Referring again to shown in Fig. 1, in the compound compressor with three-stage cylinder, cylinder 100 includes first order cylinder
110, second level cylinder 120 and third level cylinder 130, and first order cylinder 110 includes the first air entry 111 and first exhaust
Mouth 112, second level cylinder 120 include the second air entry 121 and second exhaust port 122, and third level cylinder 130 includes third air-breathing
Mouthfuls 131 and third exhaust outlet 132, when work, at this point, being disposed with first order eccentric part 210, the in the axial direction of crankshaft 200
Second level eccentric part 220 and third level eccentric part 230, first order eccentric part 210, second level eccentric part 220 and the third level
Eccentric part 230 is arranged with first order cylinder 110, second level cylinder 120 and third level cylinder 130 correspondingly respectively, work
When making, the periphery of each eccentric part is arranged with roller 400, guarantees that cylinders at different levels can be realized its normal compression, the suction qigong
Energy.
In conjunction with shown in Fig. 2 to Fig. 6, in the first embodiment of the present invention, compound compressor is three stage compression, crankshaft 200
Second level eccentric part 220 eccentric direction it is identical with the eccentric direction of first order eccentric part 210, third level eccentric part 230
The eccentric direction of eccentric direction and second level eccentric part 220 at 180 ° on the contrary, be distributed, second level eccentric part 220 and the first order are inclined
The eccentric direction of center portion 210 is identical, is distributed at 0 °, at this point, the slide plate of the corresponding first order cylinder 110 of first order eccentric part 210
Angle between the slide plate 300 of 300 second level corresponding with second level eccentric part 220 cylinders 120 is 180 °, so that second
The phase difference of grade cylinder 120 and first order cylinder 110 in air-breathing start time is 180 °.
Similarly, the eccentric direction of third level eccentric part 230 and second level eccentric part 220 eccentric direction on the contrary, at
180 ° of distributions, the slide plate 300 of the corresponding third level cylinder 130 of third level eccentric part 230 corresponding with second level eccentric part 220 the
Angle between the slide plate 300 of secondary cylinder 120 is 0 °, so that third level cylinder 130 and second level cylinder 120 are in air-breathing
The phase difference of start time is 180 °.
According to above-mentioned structure it is recognised that the present embodiment is by changing in the eccentric part and cylinder 100 on crankshaft 200
The position of slide plate 300 come so that first order cylinder 110 and second level cylinder 120 air-breathing start time phase difference at 180 °,
Second level cylinder 120 and third level cylinder 130 air-breathing start time phase difference at 180 °, have the advantages of simple structure and easy realization.
Second embodiment according to the present invention provides a kind of compound compressor, the compound compressor of the present embodiment and
The structure of the compound compressor of one embodiment is almost the same, the difference is that " first order cylinder 110 and second in the present embodiment
Grade cylinder 120 air-breathing start time phase difference at 180 °, second level cylinder 120 and third level cylinder 130 start in air-breathing
The phase difference at moment is at 180 ° " mode and first implement it is different, the specific implementation of the present embodiment is as follows:
Referring to shown in Fig. 7 to Figure 11, the compound compressor of the present embodiment is two-stage compression, and the third level of crankshaft 200 is eccentric
The eccentric direction in portion 230 is identical with the eccentric direction of second level eccentric part 220, the eccentric direction of first order eccentric part 210 and
The eccentric direction of second level eccentric part 220 at 180 ° on the contrary, be distributed, because eccentric direction and the first order of second level eccentric part 220 are inclined
The eccentric direction of center portion 210 is distributed at 180 °, at this point, the slide plate 300 of the corresponding first order cylinder 110 of first order eccentric part 210
Angle between the slide plate 300 of the second level corresponding with second level eccentric part 220 cylinder 120 is 0 °, so that second level gas
The phase difference of cylinder 120 and first order cylinder 110 in air-breathing start time is 180 °.
Similarly, because the eccentric direction of third level eccentric part 230 is identical with the eccentric direction of second level eccentric part 220, at
0 ° of distribution, at this point, the slide plate 300 and second level eccentric part 220 of the setting corresponding third level cylinder 130 of third level eccentric part 230
Angle between the slide plate 300 of corresponding second level cylinder 120 is 180 °, so that third level cylinder 130 and second level gas
Phase difference of the cylinder 120 in air-breathing start time is 180 °.
Third embodiment according to the present invention provides a kind of compound compressor, the compound compressor of the present embodiment and
The structure of the compound compressor of one embodiment is almost the same, the difference is that realizing " 110 He of first order cylinder in the present embodiment
Second level cylinder 120 air-breathing start time phase difference at 180 °, second level cylinder 120 and third level cylinder 130 are in air-breathing
The phase difference of start time is at 180 ° " mode and first implement it is different, the specific implementation of the present embodiment is as follows:
Referring to shown in Figure 12 to Figure 16, compound compressor is three stage compression, and the eccentric part of crankshaft 200 staggeredly divides at 180 °
Cloth, is designed as the eccentric direction of first order eccentric part 210 and the eccentric direction of second level eccentric part 220 on the contrary, at 180 °, and second
The eccentric direction of grade eccentric part 220 and the eccentric direction of third level eccentric part 230 are on the contrary, at 180 °, because of second level eccentric part 220
Eccentric direction with the eccentric direction of third level eccentric part 230 at 180 ° at this point, the corresponding first order gas of first order eccentric part 210
Angle between the slide plate 300 of the slide plate 300 of cylinder 110 second level cylinder 120 corresponding with second level eccentric part 220 is 0 °, from
And second level cylinder 120 and first order cylinder 110 is made in the phase difference of air-breathing start time to be 180 °.
Similarly, because the eccentric method phase of third level eccentric part 230 and second level eccentric part 220 eccentric direction on the contrary, at
180 ° of distributions, at this point, the slide plate 300 and second level eccentric part of the setting corresponding third level cylinder 130 of third level eccentric part 230
Angle between the slide plate 300 of 220 corresponding second level cylinders 120 is 0 °, so that third level cylinder 130 and second level gas
Phase difference of the cylinder 120 in air-breathing start time is 180 °, and reduction air-breathing pulsation is excessive, improves compound compressor performance.
Fourth embodiment according to the present invention provides a kind of compound compressor, the compound compressor of the present embodiment and
The structure of the compound compressor of one embodiment is almost the same, the difference is that realizing " 110 He of first order cylinder in the present embodiment
Second level cylinder 120 air-breathing start time phase difference at 180 °, second level cylinder 120 and third level cylinder 130 are in air-breathing
The phase difference of start time is at 180 ° " mode and first implement it is different, the specific implementation of the present embodiment is as follows:
Referring to shown in Figure 17 to Figure 21, compound compressor is three stage compression, and the eccentric part of crankshaft 200 is laid at 120 °
Meter, specifically, when crankshaft 200 is rotated in a clockwise direction, the eccentric direction line of first order eccentric part 210 is inclined to the second level
Angle between the eccentric direction line of center portion 220 is 240 °, the eccentric direction line of second level eccentric part 220 to third level eccentric part
Angle between 230 eccentric direction line is 240 °, at this point, the setting corresponding first order cylinder 110 of first order eccentric part 210
Slide plate 300 is to (the side counterclockwise that is 60 ° of the angle between the slide plate 300 of the corresponding second level cylinder 120 of second level eccentric part 220
It is 300 ° to angle) so that phase difference of the second level cylinder 120 with first order cylinder 110 in air-breathing start time is
180°。
Similarly, when crankshaft 200 is rotated in a clockwise direction, because the eccentric direction line of second level eccentric part 220 is to
Angle between the eccentric direction line of three-level eccentric part 230 is 240 °, sets the corresponding second level cylinder of second level eccentric part 220
120 slide plate 300 to the angle between the slide plate 300 of the corresponding third level cylinder 130 of third level eccentric part 230 be 60 ° of (inverse times
Needle angular separation is 300 °) so that the phase difference of third level cylinder 130 and second level cylinder 120 in air-breathing start time
It is 180 °, reduction air-breathing pulsation is excessive, improves compound compressor performance.
Fifth embodiment according to the present invention provides a kind of compound compressor, the compound compressor of the present embodiment and
The structure of the compound compressor of one embodiment is almost the same, the difference is that realizing " 110 He of first order cylinder in the present embodiment
Second level cylinder 120 air-breathing start time phase difference at 180 °, second level cylinder 120 and third level cylinder 130 are in air-breathing
The phase difference of start time is at 180 ° " mode and first implement it is different, the specific implementation of the present embodiment is as follows:
2 to shown in Figure 26 referring to fig. 2, and compound compressor is 2 grades of compressions, and each eccentric part of crankshaft 200 is laid at 120 °
Meter, specifically, when crankshaft 200 is rotated in a clockwise direction, the eccentric direction line of first order eccentric part 210 is inclined to the second level
Angle between the eccentric direction line of center portion 220 is 120 °, the eccentric direction line of second level eccentric part 220 to third level eccentric part
Angle between 230 eccentric direction line is 120 °, at this point, the setting corresponding first order cylinder 110 of first order eccentric part 210
Slide plate 300 is to (the side counterclockwise that is 300 ° of the angle between the slide plate 300 of the corresponding second level cylinder 120 of second level eccentric part 220
It is 60 ° to angle) so that phase difference of the second level cylinder 120 with first order cylinder 110 in air-breathing start time is
180°。
Similarly, when crankshaft 200 is rotated in a clockwise direction, because the eccentric direction line of second level eccentric part 220 is to
Angle between the eccentric direction line of three-level eccentric part 230 is 120 °, sets the corresponding second level cylinder of second level eccentric part 220
120 slide plate 300 to the angle between the slide plate 300 of the corresponding third level cylinder 130 of third level eccentric part 230 be 60 ° of (inverse times
Needle angular separation is 300 °) so that the phase difference of third level cylinder 130 and second level cylinder 120 in air-breathing start time
It is 180 °, reduction air-breathing pulsation is excessive, improves compound compressor performance.
It should be noted that eccentric direction line in the present embodiment is defined as: the center of gravity for crossing eccentric part is made perpendicular to song
The focus of the central axis of the vertical line of the center line of axis 200, the vertical line and crankshaft 200 is A, then at this time using A point as starting point and mistake
The ray of eccentric part center of gravity is the eccentric middle line of eccentric part.Similarly, the slide plate 300 of certain cylinder in the present embodiment and another gas
Angle between the slide plate 300 of cylinder refers to the angle between the middle line line of two slide plates 300.The phase difference of air-breathing start time is determined
Justice are as follows: it is 0 ° that level-one cylinder, which starts air-breathing, and when one stage of compression chamber rotates to A °, secondary cylinder starts air-breathing, then A ° is level-one gas
The phase difference of cylinder and secondary cylinder air-breathing start time.
According to the above embodiments it is recognised that compound compressor of the invention can to reduce multiple cylinder multiple level compound compressor each
The continuity and smoothness of grade exhaust and next stage air-breathing, avoid gas accumulations at different levels in intermediate cavity, lead to intermediate cavity pressure mistake
Height reduces intermediate cavity pressure fluctuation, improves circulation effect, simplifies suction and discharge circulation passage and improves compound compressor performance.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of compound compressor, which is characterized in that including crankshaft (200) and multi-stage cylinder (100), the crankshaft (200)
Multistage eccentric part is provided in axial direction, the multistage eccentric part is arranged correspondingly with the multi-stage cylinder (100), the first order
Cylinder (110) and second level cylinder (120) are within the scope of the phase difference of air-breathing start time is at 120 ° to 240 °, and described
Secondary cylinder (120) and third level cylinder (130) are within the scope of the phase difference of air-breathing start time is at 120 ° to 240 °；
When the pressure at expulsion of the second level cylinder (120)/first order cylinder (110) pressure of inspiration(Pi)≤2, described
Level-one cylinder (110) and the second level cylinder (120) air-breathing start time phase difference 120 ° to 180 ° range it
It is interior；
When the pressure at expulsion of the third level cylinder (130)/second level cylinder (120) pressure of inspiration(Pi)≤2, described
Secondary cylinder (120) and the third level cylinder (130) air-breathing start time phase difference 120 ° to 180 ° range it
It is interior；
When the pressure at expulsion of second level cylinder (120)/first order cylinder (110) pressure of inspiration(Pi) > 2, the first order cylinder
(110) and the second level cylinder (120) is within the scope of the phase difference of air-breathing start time is at 180 ° to 240 °；
When the pressure at expulsion of the third level cylinder (130)/second level cylinder (120) pressure of inspiration(Pi) > 2, described
Secondary cylinder (120) and the third level cylinder (130) air-breathing start time phase difference 180 ° to 240 ° range it
It is interior；
Wherein, the phase difference of air-breathing start time is defined as: it is 0 ° that the first order cylinder (110), which starts air-breathing, when first
When grade cylinder (110) compression chamber rotates to A °, the second level cylinder (120) starts air-breathing, then A ° is the first order cylinder
(110) with the phase difference of second level cylinder (120) the air-breathing start time, A is angle value；The second level cylinder (120)
Starting air-breathing is 0 °, and when second level cylinder (120) compression chamber rotates to B °, the third level cylinder (130) starts air-breathing, then
The B ° of phase difference for the second level cylinder (120) and third level cylinder (130) the air-breathing start time, B is angle value.
2. compound compressor according to claim 1, which is characterized in that the multi-stage cylinder (100) is three-stage cylinder, institute
Stating multistage eccentric part is three-level eccentric part, and the three-level eccentric part is the set gradually in the axial direction of the crankshaft (200)
Level-one eccentric part (210), second level eccentric part (220) and third level eccentric part (230), the first order eccentric part (210),
The second level eccentric part (220) and the third level eccentric part (230) are arranged correspondingly with the three-stage cylinder.
3. compound compressor according to claim 1, which is characterized in that the bias side of the first order eccentric part (210)
To the eccentric direction with the second level eccentric part (220) on the contrary, the eccentric direction of the second level eccentric part (220) with it is described
The eccentric direction of third level eccentric part (230) is identical；
The slide plate (300) of the corresponding first order cylinder (110) of the first order eccentric part (210) and the second level are eccentric
Angle between the slide plate (300) of the corresponding second level cylinder (120) in portion (220) is 0 °, the third level eccentric part
(230) slide plate (300) of the corresponding third level cylinder (130) corresponding with second level eccentric part (220) described
Angle between the slide plate (300) of secondary cylinder (120) is 180 °.
4. compound compressor according to claim 1, which is characterized in that the bias side of the first order eccentric part (210)
To the eccentric direction with the second level eccentric part (220) on the contrary, the eccentric direction of the second level eccentric part (220) with it is described
The eccentric direction of third level eccentric part (230) is opposite；
The slide plate (300) of the corresponding first order cylinder (110) of the first order eccentric part (210) and the second level are eccentric
Angle between the slide plate (300) of the corresponding second level cylinder (120) in portion (220) is 0 °, the third level eccentric part
(230) slide plate (300) of the corresponding third level cylinder (130) corresponding with second level eccentric part (220) described
Angle between the slide plate (300) of secondary cylinder (120) is 0 °.
5. compound compressor according to claim 1, which is characterized in that the bias side of the first order eccentric part (210)
To identical as the eccentric direction of the second level eccentric part (220), the eccentric direction of the second level eccentric part (220) with it is described
The eccentric direction of third level eccentric part (230) is opposite；
The slide plate (300) of the corresponding first order cylinder (110) of the first order eccentric part (210) and the second level are eccentric
Angle between the slide plate (300) of the corresponding second level cylinder (120) in portion (220) is 180 °, the third level eccentric part
(230) slide plate (300) of the corresponding third level cylinder (130) corresponding with second level eccentric part (220) described
Angle between the slide plate (300) of secondary cylinder (120) is 0 °.
6. compound compressor according to claim 1, which is characterized in that along the direction of rotation of the crankshaft (200):
The eccentric direction line of the first order eccentric part (210) is between the eccentric direction line of the second level eccentric part (220)
Angle be 240 °, the eccentric direction line of the second level eccentric part (220) to the bias side of the third level eccentric part (230)
It is 240 ° to the angle between line；
The slide plate (300) of the corresponding first order cylinder (110) of the first order eccentric part (210) is eccentric to the second level
Angle between the slide plate (300) of the corresponding second level cylinder (120) in portion (220) is 60 °, the second level eccentric part
(220) slide plate (300) of the corresponding second level cylinder (120) is to the third level eccentric part (230) corresponding described the
Angle between the slide plate (300) of three-stage cylinder (130) is 60 °.
7. compound compressor according to claim 1, which is characterized in that along the direction of rotation of the crankshaft (200):
The eccentric direction line of the first order eccentric part (210) is between the eccentric direction line of the second level eccentric part (220)
Angle be 120 °, the eccentric direction line of the second level eccentric part (220) to the bias side of the third level eccentric part (230)
It is 120 ° to the angle between line；
The slide plate (300) of the corresponding first order cylinder (110) of the first order eccentric part (210) is eccentric to the second level
Angle between the slide plate (300) of the corresponding second level cylinder (120) in portion (220) is 300 °, the second level eccentric part
(220) slide plate (300) of the corresponding second level cylinder (120) is to the third level eccentric part (230) corresponding described the
Angle between the slide plate (300) of three-stage cylinder (130) is 300 °.
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| CN201410245774.0A CN105134596B (en) | 2014-06-04 | 2014-06-04 | Compound compressor |
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| CN201410245774.0A CN105134596B (en) | 2014-06-04 | 2014-06-04 | Compound compressor |
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| CN105134596A CN105134596A (en) | 2015-12-09 |
| CN105134596B true CN105134596B (en) | 2019-05-31 |
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| DE102022116197A1 (en) | 2022-06-29 | 2024-01-04 | Schaeffler Technologies AG & Co. KG | Orbital piston compressor with circumferentially offset cylinder assemblies and shaft-integrated bearing seats |
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| CN1950611A (en) * | 2004-06-15 | 2007-04-18 | 东芝开利株式会社 | Multi-cylinder rotary compressor |
| CN101187375A (en) * | 2003-09-30 | 2008-05-28 | 三洋电机株式会社 | Horizontal type compressor and automobile air conditioner equipped with the same |
| CN101201050A (en) * | 2003-09-30 | 2008-06-18 | 三洋电机株式会社 | Rotary compressor, and car air conditioner and heat pump type water heater using the compressor |
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| CN203867899U (en) * | 2014-06-04 | 2014-10-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Multistage compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62218680A (en) * | 1986-03-18 | 1987-09-26 | Nippon Denso Co Ltd | Compressor |
| JPH01151793A (en) * | 1987-12-07 | 1989-06-14 | Toshiba Corp | Rotary compressor |
| JP5199863B2 (en) * | 2008-12-26 | 2013-05-15 | 三洋電機株式会社 | Rotary compressor |
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- 2014-06-04 CN CN201410245774.0A patent/CN105134596B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187375A (en) * | 2003-09-30 | 2008-05-28 | 三洋电机株式会社 | Horizontal type compressor and automobile air conditioner equipped with the same |
| CN101201050A (en) * | 2003-09-30 | 2008-06-18 | 三洋电机株式会社 | Rotary compressor, and car air conditioner and heat pump type water heater using the compressor |
| CN1950611A (en) * | 2004-06-15 | 2007-04-18 | 东芝开利株式会社 | Multi-cylinder rotary compressor |
| CN103807174A (en) * | 2014-03-10 | 2014-05-21 | 吴月广 | Three-cylindrical rolling rotor type compressor |
| CN203867899U (en) * | 2014-06-04 | 2014-10-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Multistage compressor |
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