CN1093913C - Compressor for use in refrigeration system - Google Patents
Compressor for use in refrigeration system Download PDFInfo
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- CN1093913C CN1093913C CN97121618A CN97121618A CN1093913C CN 1093913 C CN1093913 C CN 1093913C CN 97121618 A CN97121618 A CN 97121618A CN 97121618 A CN97121618 A CN 97121618A CN 1093913 C CN1093913 C CN 1093913C
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/24—Bypassing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/08—Actuation of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Magnetically Actuated Valves (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
To adjust the capacity of a compresser in plural stages by comprising a group of the first and second compressing cylinders respectively composed of two compressing cylinders, and opening and closing the first and second cylinder passages communicated with the group of the first and second compressing cylinders by the unload valves. When the first and second unload valves (hereinafter valve) 70, 80 are not energized, the coolant flown into an intake chamber 51 from an external, is taken into a cylinder through a partially opened communication port 72a and a valve chamber 54, and only one cylinder among four cylinders, is used. Then when the communication port 72a is opened by energizing only the first valve 70, the discharge pressure acting in the second discharging chamber, is acted on a piston 83, and the communication port 82a is completely closed, thereby only two cylinders are used. Further when only the second valve 80 is energized, three cylinders are used, and when the both valves 70, 80 are energized, four cylinders are used.
Description
Technical field
The present invention relates to compressor for use in refrigeration system, particularly a kind of simple structure, compressor capacity are regulated the idle call compressor that progression increases, raises the efficiency.
Background technique
Be assembled in the air conditioner on the large cars such as bus, different with on the car are because of its cooling space needs jumbo cooling system greatly.Therefore, the key element of formation cooling system is that compressor, condenser etc. also need big capacity.For example, compressor normally adopts the compressor with several compression cylinders.Many large-size air conditioning machines of developing in recent years except necessary parts, also have other thermoregulation mechanism.This thermoregulation mechanism normally selectively makes the part in several cylinders in the compressor drive according to target temperature.
Fig. 1 is the ideograph of expression bus of the prior art with one of compressor for air conditioner example.As shown in Figure 1, compressor has crank box 10, the crank case lid 20 with 6 compression cylinders and is contained in cover plate 30 between them.In order to control the capacity of compressor, 4 compression cylinders in 6 compression cylinders, by unloading valve 40 its actions of control that are located on the crank box 10, remaining 2 compression cylinder moves always.
As shown in Figure 2, the crank box 10 that contacts with cover plate 30, have 3 discharge chambers 12,13,14 that around suction chamber 11, are connected with 2 compression cylinders respectively, suction chamber 16 and bypass chamber 15 are being discharged chamber 12 and are being discharged between the chamber 13, and suction chamber 17 and bypass chamber 18 are being discharged chamber 13 and discharged between the chamber 14.
As shown in Figure 3, crank case lid 20 is separated into suction passage 21 that is communicated with the suction chamber 11 of crank box 10 and the discharge stream 22 that is communicated with each discharge chamber 12,13,14 by demarcation strip 23.
Fig. 4 represents the cover plate 30 between crank box 10 and crank case lid 20.This cover plate 30 has 2 suction ports 31 that the suction chamber 11 that makes crank box 10 is communicated with the suction passage 21 of crank case lid 20, and 3 of crank box 10 are discharged the 1st, the 2nd, the 3rd exhaust ports 32,33,34 that chamber 12,13,14 is communicated with the discharge stream 22 of crank case lid 20.
As shown in Figure 5 and Figure 6, the unloading valve that unloading valve 40 is set on crank box 10 is provided with on the face, is formed with pressure hole 19a and low pressure hole 19b.Pressure hole 19a is communicated with discharge chamber 13, and low pressure hole 19b is communicated with suction chamber 11 by bypass chamber 18.As shown in Figure 6, during the power supply access failure, the valve plug 47 of unloading valve 40, will be blocked towards the stream 41b of bypass chamber 18 flexibly toward the below pushing by spring 48.At this moment, the pressure that driven always 2 compression cylinders are discharged flows into start stream 41a and acts on piston 43 through pressure hole 19a from discharging chamber 13, and like this, piston 43 descends and choking flow hand-hole 10a.Its result, 2 compression cylinders that blocking-up is connected with unloading valve 40 are communicated with suction chamber 17, and each compression cylinder is not brought into play compression function.In addition, when another unloading valve yet access failure power supply, relative 2 compression cylinders are not brought into play compression function yet.When 2 unloading valves were all disconnected power supply, compressor was only worked with 1/3 of its total capacity.
When power connection arrived the coil 46 of unloading valve 40, valve plug 47 rose, open circuitous stream 41b.Because the opening of circuitous stream 41b, the head pressure of 2 compression cylinders that often moving acts on suction chamber 11 by circuitous stream 41b and low pressure hole 19b through bypass chamber 18, and piston 43 rises open flows hand-hole 10a by means of the recuperability of spring 44.Its result, 2 compression cylinders that refrigerant flow direction is connected with unloading valve 40 carry out compressed action.Similarly, when another unloading valve 40 has been connected power supply, 2 relevant compression cylinder starts, compressor carries out compressed action with total capacity.
But, in the above-mentioned variable displacement compressor of the prior art, can only carry out 3 level capacities by 6 compression cylinders and regulate, in addition, also need to be provided with 8 chambers, so structure is very complicated, efficient is low.Moreover, be divided into 8 chambers and discharge stream and suction passage, between crank box and crank case lid, other cover plate to be set, its structure is more complicated.
The content of invention
The present invention makes in view of the above problems, its purpose is to provide a kind of compressor, does not need in this compressor to be used to separate the cover plate of discharging stream and suction passage, only adopts 2 unloading valves and 4 compression cylinders, can carry out multistage compressor capacity and regulate, and have simpler structure.
To achieve these goals, the present invention takes following technological scheme:
Compressor for use in refrigeration system, it has the 1st and the 2nd compression cylinder group that is made of 2 compression cylinders respectively, it is characterized in that, has:
The suction chamber that refrigeration agent flows into from the outside;
The 1st valve chamber, the 1st valve chamber have the 1st refrigeration agent inflow entrance that is communicated with above-mentioned suction chamber and have the 1st compression cylinder stream that is communicated with the 1st compression cylinder group;
The 2nd valve chamber, the 2nd valve chamber have the 2nd refrigeration agent inflow entrance that is communicated with above-mentioned suction chamber, and have the 2nd compression cylinder stream that is communicated with the 2nd compression cylinder group;
Compressed refrigerant is discharged the chamber from the 1st of the 1st compression cylinder group discharge;
Compressed refrigerant is discharged the discharge chamber the 2nd that the chamber is communicated with from the discharge of the 2nd compression cylinder group and with the 1st;
The 1st valve system, the 1st valve system utilization be from the 1st pressure of discharging the refrigeration agent of discharging the chamber, can move between the 2nd position of the 1st position of the 1st compression cylinder stream of inaccessible the 1st valve chamber of part and the 1st compression cylinder stream that entirely shuts;
The 2nd valve system, the 2nd valve system utilization be from the 2nd pressure of discharging the refrigeration agent of discharging the chamber, can move between the 1st position of the 2nd compression cylinder stream of the 2nd valve chamber that entirely shuts and the 2nd position of opening the 1st compression cylinder stream fully.
Described compressor for use in refrigeration system is characterized in that,
Above-mentioned the 1st valve system has:
Sleeve, this sleeve extend the 1st refrigeration agent inflow entrance in the 1st valve chamber, form the space of separating with the 1st valve chamber, and have the connecting port that is communicated with the 1st compression cylinder stream;
Piston, this piston is located in the sleeve, can to-and-fro motion between the 2nd position of the 1st position of the inaccessible above-mentioned connecting port of part and open fully above-mentioned connecting port;
With the elastic member of above-mentioned piston toward the pushing of the 2nd position;
Discharge the discharge chamber connection stream that the chamber is communicated with the above-mentioned the 1st;
Be communicated with the suction chamber connection stream that stream is communicated with and is communicated with above-mentioned suction chamber with above-mentioned discharge chamber;
Be communicated with above-mentioned discharge chamber that stream is communicated with and from the 1st discharge the compressed refrigerant that comes out the chamber act on above-mentioned piston above, with the piston pressurization stream of piston toward the pushing of the 1st position;
Selectively inaccessible described suction chamber is communicated with the inaccessible mechanism of suction chamber of stream.
Described compressor for use in refrigeration system is characterized in that,
Above-mentioned the 2nd valve system has:
Sleeve, this sleeve extend the 2nd refrigeration agent inflow entrance in the 2nd valve chamber, form the space of separating with the 2nd valve chamber, have the connecting port that is communicated with the 2nd compression cylinder stream;
Piston, this piston is located in the sleeve, can to-and-fro motion between the 2nd position of the 1st position of the inaccessible above-mentioned connecting port of part and open fully above-mentioned connecting port;
With the elastic member of above-mentioned piston toward the pushing of the 2nd position;
Discharge the discharge chamber connection stream that the chamber is communicated with the above-mentioned the 2nd;
Be communicated with the suction chamber connection stream that stream is communicated with and is communicated with above-mentioned suction chamber with above-mentioned discharge chamber;
Be communicated with above-mentioned discharge chamber that stream is communicated with and from the 2nd discharge the compressed refrigerant that comes out the chamber act on above-mentioned piston above, with the piston pressurization stream of piston toward the pushing of the 1st position;
Selectively inaccessible suction chamber is communicated with the inaccessible mechanism of suction chamber of stream.
Described compressor for use in refrigeration system is characterized in that,
The inaccessible mechanism of above-mentioned suction chamber has:
The 1st position that is communicated with stream at inaccessible suction chamber is communicated with reciprocating valve plug between the 2nd position of stream with the opening suction chamber;
With the coil of above-mentioned valve plug toward the pushing of the 2nd position;
With the elastic member of above-mentioned valve plug toward the pushing of the 1st position.
Described compressor for use in refrigeration system is characterized in that,
The inaccessible mechanism of above-mentioned suction chamber has:
The 1st position that is communicated with stream at inaccessible suction chamber is communicated with reciprocating valve plug between the 2nd position of stream with the opening suction chamber;
With the coil of above-mentioned valve plug toward the pushing of the 2nd position;
With the elastic member of above-mentioned valve plug toward the pushing of the 1st position.
Compressor for use in refrigeration system of the present invention has the 1st and the 2nd compression cylinder group that is made of 2 compression cylinders respectively, it is characterized in that, has:
The suction chamber that refrigeration agent flows into from the outside;
The 1st valve chamber, the 1st valve chamber have the 1st refrigeration agent inflow entrance that is communicated with above-mentioned suction chamber and have the 1st compression cylinder stream that is communicated with the 1st compression cylinder group;
The 2nd valve chamber, the 2nd valve chamber have the 2nd refrigeration agent inflow entrance that is communicated with above-mentioned suction chamber, and have the 2nd compression cylinder stream that is communicated with the 2nd compression cylinder group;
Compressed refrigerant is discharged the chamber from the 1st of the 1st compression cylinder group discharge;
Compressed refrigerant is discharged the discharge chamber the 2nd that the chamber is communicated with from the discharge of the 2nd compression cylinder group and with the 1st;
The 1st valve system, the 1st valve system utilization be from the 1st pressure of discharging the refrigeration agent of discharging the chamber, can start between the 2nd position of the 1st position of the 1st compression cylinder stream of inaccessible the 1st valve chamber of part and the 1st compression cylinder stream that entirely shuts;
The 2nd valve system, the 2nd valve system utilization be from the 2nd pressure of discharging the refrigeration agent of discharging the chamber, can be in start between the 1st position of the 2nd compression cylinder stream of the 2nd valve chamber that entirely shuts and the 2nd position of opening the 1st compression cylinder stream fully.Effect of the present invention:
Therefore, according to the present invention, can do 4 grades of adjustings to the capacity of compressor by 4 compression cylinders, compared with prior art, demarcation strip, simple structure are not set in addition, as long as just can obtain identical functions in crank box because 5 chambers are set, so, raise the efficiency more.
Brief description of drawings
Fig. 1 is the ideograph of one of compressor example in the expression prior art.
Fig. 2 is the crank box sectional view of compressor shown in Figure 1.
Fig. 3 is the sectional view of the crank case lid of compressor shown in Figure 1.
Fig. 4 is the sectional view of the cover plate between crank box lid and crank box in the compressor shown in Figure 1.
Fig. 5 is the ideograph of the unloading valve place part of expression compressor shown in Figure 1.
Fig. 6 is the sectional view that is used for the unloading valve of compressor shown in Figure 1.
Fig. 7 is the sectional view of compressor of the present invention.
Fig. 8 is the schematic partial sectional view of compressor shown in Figure 7.
Fig. 9 is the sectional view of the crank box of compressor shown in Figure 7.
Figure 10 is the planimetric map of the crank box of compressor shown in Figure 7.
Figure 11 is the front elevation of the crank case lid of compressor shown in Figure 7.
Figure 12 is the profile of the crank case lid of compressor shown in Figure 7.
Figure 13 is the schematic partial sectional view of the 1st and the 2nd unloading valve that adopts in the compressor shown in Figure 7.
Figure 14 is the sectional view of compressor shown in Figure 7 with the 2nd unloading valve that adopts.
Figure 15 (A)～(D) is the schematic partial sectional view that compressor action of the present invention is described respectively.
The embodiment of invention:
As shown in Figure 7 and Figure 8, compressor for use in refrigeration system of the present invention has 4 compression cylinders that are configured to the V font.Valve at crank box 50 is provided with on the face 71, and the 1st and the 2nd unloading valve 70,80 of respectively controlling 2 compression cylinders is installed.As shown in Figure 8, in the side of crank box 50, be provided with crank case lid 60.
As Fig. 9 and shown in Figure 10, on the top of crank box 50, form a suction chamber 51, at the upside of this suction chamber 51, form the discharge chamber 52,53 the 1st and the 2nd that is communicated with 2 compression cylinders respectively.Discharge between the chamber 52,53 the 1st and the 2nd, form the 1st off-load valve chamber 54 and the 2nd off-load valve chamber 55, the 1 off-load valve chambers 54 are communicated with suction chamber 51 and 2 compression cylinders, the 2nd off-load valve chamber 55 is communicated with suction chamber 51 and other 2 compression cylinders.
Discharge chamber 52 the 1st is provided with face 71 by the 1st pressure hole 56 and valve and is communicated with, and discharge chamber 53 the 2nd is provided with face 71 by the 2nd pressure hole 58 and valve and is communicated with.Suction chamber 51 is provided with face 71 by the 1st low pressure hole 57 and the 2nd low pressure hole 59 with valve and is communicated with.
As Figure 11 and shown in Figure 12, on crank case lid 60 and face that crank box 50 contacts, form the suction passage 61 that is communicated with suction chamber 51, the 1st and the 2nd discharge stream 62,63 that is communicated with discharge chamber 52,53 the 1st and the 2nd respectively.The the 1st and the 2nd discharges stream 62,63 is interconnected by being communicated with stream 65.Connect stream 65 and formed by blocking-up portion 64, when crank case lid 60 was installed on the crank box 50, this blocking-up portion 64 constituted a wall of off-load valve chamber 54,55.The suction passage 61 of crank case lid 60 is connected with the suction line (figure does not show) that sucks path as refrigeration agent in the compressor, the the 1st and the 2nd discharges among the stream 62,63, for example, the 2nd discharge stream 63 and be compressed the discharge conduit (scheming not show) that the back refrigeration agent flows out and be connected.
Figure 13 and Figure 14 represent the structure of the 1st among the present invention and the 2nd unloading valve 70,80.As shown in figure 13, piston 73 pumps in sleeve 72, and piston 83 pumps in sleeve 82, forms connecting port 72a, 82a respectively at the hypomere of each sleeve 72,82.Sleeve 72 is communicated with the 1st off-load valve chamber 54 by connecting port 72a, is communicated with suction chamber 51 by inflow entrance 50a.Sleeve 82 is communicated with the 2nd off-load valve chamber 55 by connecting port 82a, is communicated with suction chamber 51 by suction port 50b.
Among the present invention, when internal piston 73 descends to greatest extent, the connecting port 72a of the inaccessible by halves sleeve 72 of the 1st unloading valve 70, so-called not exclusively inaccessible, i.e. the state obturation opened with pre-sizing gap of connecting port 72a.When piston 83 descends to greatest extent, the 2nd unloading valve 80 connecting port 82a that entirely shuts.The the 1st and the 2nd unloading valve 70,80 is except the to-and-fro motion stroke of its piston 73,83 in each sleeve 72,82, and its structure is identical.About the detailed construction of unloading valve, be the example explanation with the 2nd unloading valve 80.
As shown in figure 14, the 2nd unloading valve 80 includes sleeve 82, and this sleeve 82 is arranged on the suction port 50b place that is communicated with suction chamber 51 coaxially.On sleeve 82, form the connecting port 82a be communicated with the 2nd off-load valve chamber 55, hollow shape piston 83 is in sleeve 82 reciprocates inside, and when piston when portion descends to greatest extent within it, connecting port 82a can entirely shut.At the hollow portion of piston 83, spring 84 flexibly is arranged between the flange 89a of the cover plate 90 of piston 83 upper ends and guide member 89, and the connecting port 82a ground of open sleeve 82 suppresses piston upward.
The present invention's the 2nd unloading valve 80 of this structure, when coil 86 access failure power supplys, by the valve plug 87 inaccessible circuitous stream 92b that spring 88 is pressed toward the below, the discharge of compression cylinder is pressed through start stream 92a and is acted on piston 83 thus, and piston 83 descends and inaccessible connecting port 82a.When coil 86 had been connected power supply, valve plug 87 rose because of the magnetic force of coil 86, open circuitous stream 92b, and the head pressure that acts on piston 83 tops is cancelled, and piston 83 is above resetting under the effect of spring 84 and open communication mouth 82a.
Below, with reference to Figure 15 A～15D, the action of the compressor for use in refrigeration system of the present invention of above-mentioned structure is described.
Figure 15 A is the ideograph of expression the 1st and the 2nd unloading valve 70,80 equal access failure power supply status.At this moment, the refrigeration agent that flows into suction chamber 51 from the outside flows in the sleeve 72 by inflow entrance 50a, and the connecting port 72a open by part flows in the 1st off-load valve chamber 54, be inhaled into 2 compression cylinders that the 1st off-load valve chamber 54 is communicated with in.Like this, be compressed at 2 compression cylinder inner refrigerants, the refrigeration agent that has been compressed is discharged chamber 52 by the 1st and is discharged.Part by the refrigerant pressure of the 1st discharge chamber 52 discharges acts in the 1st unloading valve 70 by the 1st pressure hole 56.The 1st unloading valve 70 when power supply is disconnected state, because the stream of the 1st low pressure hole 57 sides is by obturation, refrigerant pressure acts on piston 73, and piston 73 is descended.At this moment, among the present invention, the also part of only inaccessible connecting port 72a even piston 73 descends to greatest extent, other parts are open states, refrigeration agent continues to flow into 2 compression cylinders that are being communicated with from suction chamber 51 through the 1st off-load valve chamber 54.The degree of opening of connecting port 72a is set like this,, makes the amount that is inhaled into the refrigeration agent of 2 compression cylinders by the open connecting port 72a of part that is, is half of the volume of the cooling medium that flows into by wide-open connecting port 72a in the same time period.For example, when the diameter of connecting port 72a is 14mm when common refrigeration agent feed pressure, if open gap remains about 1mm, compare when then opening fully with connecting port 72a, the refrigeration agent of half can flow into.
The 1st discharges another part of the refrigeration agent of chamber 52, acts in the 2nd unloading valve 80 through being communicated with stream discharge chamber the 65, the 2nd the 53, the 2nd pressure hole 58.With the 1st unloading valve 70 similarly in the 2nd unloading valve 80 of access failure power supply, valve plug 87 inaccessible circuitous stream 92b, the pressure of refrigeration agent acts on piston 83, and 82a entirely shuts with connecting port, and its result obtains the effect that only makes a compression cylinder action.
Shown in Figure 15 B, when electric current only was added on the 1st unloading valve 70, the head pressure of compression cylinder is bypassed to and is pressed into suction chamber 51 by the 1st pressure hole the 56, the 1st unloading valve 70 and the 1st low pressure hole 57, and was like this, that the connecting port 72a of the 1st unloading valve 70 is open fully.On the other hand, act on the 2nd head pressure of discharging the chamber by being communicated with stream 65, make piston 83 starts through the start stream 92a of the 2nd pressure hole 82a and the 2nd unloading valve, 82a entirely shuts with connecting port.Its result, connecting port 72a is open fully, and connecting port 82a entirely shuts, and has only 2 compression cylinder actions in 4 compression cylinders.
Figure 15 C is the ideograph of expression electric current when only being added on the coil of the 2nd unloading valve 80.At this moment, the connecting port 72a of the 1st unloading valve 70 becomes the part open state, and the connecting port 82a of the 1st unloading valve 80 is for open fully, and its result can obtain the effect that 3 compression cylinders move.
Figure 15 D is the ideograph of expression electric current when being added on the 1st and the 2nd unloading valve 70,80.At this moment, connecting port 72a, the 82a of the 1st and the 2nd unloading valve is open fully, can obtain the effect that 4 compression cylinders are all brought into play compression function.
Above most preferred embodiment of the present invention is described, but in the scope that does not break away from claim of the present invention, can does various changes.
Claims (5)
1. compressor for use in refrigeration system, it has the 1st and the 2nd compression cylinder group that is made of 2 compression cylinders respectively, it is characterized in that, has:
The suction chamber that refrigeration agent flows into from the outside;
The 1st valve chamber, the 1st valve chamber have the 1st refrigeration agent inflow entrance that is communicated with above-mentioned suction chamber and have the 1st compression cylinder stream that is communicated with the 1st compression cylinder group;
The 2nd valve chamber, the 2nd valve chamber have the 2nd refrigeration agent inflow entrance that is communicated with above-mentioned suction chamber, and have the 2nd compression cylinder stream that is communicated with the 2nd compression cylinder group;
Compressed refrigerant is discharged the chamber from the 1st of the 1st compression cylinder group discharge;
Compressed refrigerant is discharged the discharge chamber the 2nd that the chamber is communicated with from the discharge of the 2nd compression cylinder group and with the 1st;
The 1st valve system, the 1st valve system utilization be from the 1st pressure of discharging the refrigeration agent of discharging the chamber, can move between the 2nd position of the 1st position of the 1st compression cylinder stream of inaccessible the 1st valve chamber of part and the 1st compression cylinder stream that entirely shuts;
The 2nd valve system, the 2nd valve system utilization be from the 2nd pressure of discharging the refrigeration agent of discharging the chamber, can move between the 1st position of the 2nd compression cylinder stream of the 2nd valve chamber that entirely shuts and the 2nd position of opening the 1st compression cylinder stream fully.
2. compressor for use in refrigeration system as claimed in claim 1 is characterized in that,
Above-mentioned the 1st valve system has:
Sleeve, this sleeve extend the 1st refrigeration agent inflow entrance in the 1st valve chamber, form the space of separating with the 1st valve chamber, and have the connecting port that is communicated with the 1st compression cylinder stream;
Piston, this piston is located in the sleeve, can to-and-fro motion between the 2nd position of the 1st position of the inaccessible above-mentioned connecting port of part and open fully above-mentioned connecting port;
With the elastic member of above-mentioned piston toward the pushing of the 2nd position;
Discharge the discharge chamber connection stream that the chamber is communicated with the above-mentioned the 1st;
Be communicated with the suction chamber connection stream that stream is communicated with and is communicated with above-mentioned suction chamber with above-mentioned discharge chamber;
Be communicated with above-mentioned discharge chamber that stream is communicated with and from the 1st discharge the compressed refrigerant that comes out the chamber act on above-mentioned piston above, with the piston pressurization stream of piston toward the pushing of the 1st position;
Selectively inaccessible described suction chamber is communicated with the inaccessible mechanism of suction chamber of stream.
3. compressor for use in refrigeration system as claimed in claim 1 is characterized in that,
Above-mentioned the 2nd valve system has:
Sleeve, this sleeve extend the 2nd refrigeration agent inflow entrance in the 2nd valve chamber, form the space of separating with the 2nd valve chamber, have the connecting port that is communicated with the 2nd compression cylinder stream;
Piston, this piston is located in the sleeve, can to-and-fro motion between the 2nd position of the 1st position of the inaccessible above-mentioned connecting port of part and open fully above-mentioned connecting port;
With the elastic member of above-mentioned piston toward the pushing of the 2nd position;
Discharge the discharge chamber connection stream that the chamber is communicated with the above-mentioned the 2nd;
Be communicated with the suction chamber connection stream that stream is communicated with and is communicated with above-mentioned suction chamber with above-mentioned discharge chamber;
Be communicated with above-mentioned discharge chamber that stream is communicated with and from the 2nd discharge the compressed refrigerant that comes out the chamber act on above-mentioned piston above, with the piston pressurization stream of piston toward the pushing of the 1st position;
Selectively inaccessible suction chamber is communicated with the inaccessible mechanism of suction chamber of stream.
4. compressor for use in refrigeration system as claimed in claim 2 is characterized in that,
The inaccessible mechanism of above-mentioned suction chamber has:
The 1st position that is communicated with stream at inaccessible suction chamber is communicated with reciprocating valve plug between the 2nd position of stream with the opening suction chamber;
With the coil of above-mentioned valve plug toward the pushing of the 2nd position;
With the elastic member of above-mentioned valve plug toward the pushing of the 1st position.
5. compressor for use in refrigeration system as claimed in claim 3 is characterized in that,
The inaccessible mechanism of above-mentioned suction chamber has:
The 1st position that is communicated with stream at inaccessible suction chamber is communicated with reciprocating valve plug between the 2nd position of stream with the opening suction chamber;
With the coil of above-mentioned valve plug toward the pushing of the 2nd position;
With the elastic member of above-mentioned valve plug toward the pushing of the 1st position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960081265A KR100208220B1 (en) | 1996-12-31 | 1996-12-31 | Compressor of airconditioner |
| KR81265/96 | 1996-12-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1186913A CN1186913A (en) | 1998-07-08 |
| CN1093913C true CN1093913C (en) | 2002-11-06 |
Family
ID=19493891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97121618A Expired - Fee Related CN1093913C (en) | 1996-12-31 | 1997-11-07 | Compressor for use in refrigeration system |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3236253B2 (en) |
| KR (1) | KR100208220B1 (en) |
| CN (1) | CN1093913C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0202714A1 (en) * | 1985-05-15 | 1986-11-26 | European Atomic Energy Community (Euratom) | A pump with an electronically controllable stroke volume |
| US4801250A (en) * | 1986-04-25 | 1989-01-31 | Campbell Hausfeld/Scott Fetzer Company | Valve structure for a compressor |
| CN1081235A (en) * | 1992-07-10 | 1994-01-26 | 三电有限公司 | The oblique tray type compressor that variable displacement mechanism is arranged |
| CN2231325Y (en) * | 1994-12-08 | 1996-07-17 | 柳州市通用机械总厂 | Reciprocating piston air compressor |
-
1996
- 1996-12-31 KR KR1019960081265A patent/KR100208220B1/en not_active IP Right Cessation
-
1997
- 1997-11-06 JP JP30390497A patent/JP3236253B2/en not_active Expired - Fee Related
- 1997-11-07 CN CN97121618A patent/CN1093913C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0202714A1 (en) * | 1985-05-15 | 1986-11-26 | European Atomic Energy Community (Euratom) | A pump with an electronically controllable stroke volume |
| US4801250A (en) * | 1986-04-25 | 1989-01-31 | Campbell Hausfeld/Scott Fetzer Company | Valve structure for a compressor |
| CN1081235A (en) * | 1992-07-10 | 1994-01-26 | 三电有限公司 | The oblique tray type compressor that variable displacement mechanism is arranged |
| CN2231325Y (en) * | 1994-12-08 | 1996-07-17 | 柳州市通用机械总厂 | Reciprocating piston air compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1186913A (en) | 1998-07-08 |
| KR19980061887A (en) | 1998-10-07 |
| JP3236253B2 (en) | 2001-12-10 |
| JPH10196524A (en) | 1998-07-31 |
| KR100208220B1 (en) | 1999-07-15 |
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