CN104295466A - Variable displacement compressor with single-head pistons - Google Patents
Variable displacement compressor with single-head pistons Download PDFInfo
- Publication number
- CN104295466A CN104295466A CN201410340608.9A CN201410340608A CN104295466A CN 104295466 A CN104295466 A CN 104295466A CN 201410340608 A CN201410340608 A CN 201410340608A CN 104295466 A CN104295466 A CN 104295466A
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- Prior art keywords
- chamber
- anechoic chamber
- face
- opening
- compressor
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- 238000006073 displacement reaction Methods 0.000 title claims description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 45
- 210000000038 chest Anatomy 0.000 claims description 26
- 241001311413 Pison Species 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 8
- 238000013019 agitation Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 235000019994 cava Nutrition 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 description 29
- 230000010349 pulsation Effects 0.000 description 9
- 230000009467 reduction Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 210000000635 valve cell Anatomy 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- 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
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
- F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
- F04B53/003—Noise damping by damping supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
Abstract
The invention provides a muffler. The muffler has a muffler chamber formed in a rear housing, an inlet channel that provides communication between the discharge chamber and the muffler chamber, and an outlet channel that provides communication between the muffler chamber and the outlet port. The muffler chamber has a first end surface positioned on one end side of the muffler chamber, a second end surface positioned on the other end side of the muffler chamber, and an inner peripheral surface having a cylindrical shape that is positioned between the first end surface and the second end surface and extends from the discharge chamber toward the other end side. The muffler chamber is positioned between an annular wall and an outer peripheral wall. The inlet channel opens in the first end surface. The outlet channel opens in the inner peripheral surface at a position spaced apart from the second end surface.
Description
Technical field
The present invention relates to a kind of compressor with variable displacement with single head pison.
Technical background
Japanese Unexamined Patent Publication No.9-287564 discloses a kind of compressor with variable displacement (hereinafter referred to as compressor) with the routine of single head pison.This compressor comprises cylinder block, fore shell, back cover, piston and drive unit.This cylinder block has multiple cylinder thorax, and described multiple cylinder thorax along the circumferential direction arranges abreast and in axial direction extends parallel to each other.Fore shell is fixed to the end on the axial direction of cylinder block.Fore shell has the crankshaft room be formed in wherein.Back cover is fixed to the other end on the axial direction of cylinder block.Back cover has the suction chamber and drain chamber that are formed in wherein.Piston is contained in each cylinder thorax in cylinder thorax to move back and forth and to limit pressing chamber in the rear portion of each cylinder thorax in cylinder thorax.Drive unit is provided with in crankshaft room.Drive unit can make each piston move back and forth and change the stroke of each piston.
Back cover has suction chamber and drain chamber annular wall separated from one another.Suction chamber to be formed between annular wall and the periphery wall of back cover and along the circumferential direction to extend with circlewise around drain chamber.Cylinder block has outlet port, makes drain chamber and ft connection by this outlet port.Baffler is provided with between drain chamber and outlet port.Baffler is positioned at the position of the outer circumferential face close to cylinder block.Baffler has anechoic chamber, access and exit passageway.Access provides and is communicated with between drain chamber with anechoic chamber.Exit passageway provides and is communicated with between anechoic chamber with outlet port.
According to this compressor, the refrigerant gas be under high pressure flows out drain chamber and flows into anechoic chamber by access and then flow through exit passageway and be disposed to outside from outlet port.In this process, the flow of refrigerant gas reduces and then expands in anechoic chamber in access.In this way, compressing mechanism causes reduction exhaust pulse.
According to above-mentioned Conventional press, need the volume increasing anechoic chamber so that baffler suitably reduces exhaust pulse, and be difficult to arrange so not huge baffler in the peripheral part of cylinder block.On this point, according to the compressor of routine, be difficult to the size of reduction compressor and suitably reduce exhaust pulse.
In view of the situation of prior art described above devises the present invention, and the object that the present invention will reach be to provide a kind of can have a reduction size and suitably reduce the variable-displacement compressor with single head pison of exhaust pulse.
Summary of the invention
According to the compressor with variable displacement with single head pison of the present invention, comprising:
Cylinder block, this cylinder block has along the circumferential direction formation abreast and the multiple cylinder thoraxes in axial direction extended parallel to each other;
Fore shell, this fore shell is fixed to the end side of the axial direction of cylinder block and has the crankshaft room be formed in fore shell;
Back cover, another side and having that this back cover is fixed on the axial direction of cylinder block is formed in suction chamber in back cover and drain chamber;
Multiple piston, the plurality of piston is contained in each cylinder thorax in cylinder thorax separately to move back and forth and define pressing chamber in another side, each cylinder thorax in cylinder thorax; And
Drive unit, this drive unit is arranged in crankshaft room, and each piston in piston can be made to move back and forth and change the stroke of each piston in piston.
Back cover has annular wall, this annular wall by suction chamber and drain chamber separated from one another.
Drain chamber is formed between annular wall and the periphery wall of back cover along the circumferential direction to extend and circlewise around suction chamber.
Outlet port is formed in cylinder block or back cover, makes drain chamber and ft connection by this outlet port.
Baffler is arranged between drain chamber and outlet port.
This baffler has anechoic chamber, access and exit passageway.Anechoic chamber is formed in back cover.Access provides and is communicated with between drain chamber with anechoic chamber.Exit passageway provides and is communicated with between anechoic chamber with outlet port.
This anechoic chamber has the first end face, the second end face and inner peripheral surface.This first end face is positioned at the end side of anechoic chamber.This second end face is positioned at another side of anechoic chamber.Inner peripheral surface has cylindrical shape, to be positioned between the first end face and the second end face and to extend to another side from drain chamber.
This anechoic chamber is positioned between annular wall and periphery wall.
Access is opened in the first end face.
Exit passageway is opened in inner peripheral surface the position being positioned at and opening with the second end surfaces.
By explanation and the design of the present invention of mode of execution disclosed in accompanying drawing, herein example, other aspects of the present invention and advantage will become obvious.
Accompanying drawing explanation
Fig. 1 is the vertical cross-section figure of the compressor according to mode of execution 1.
The cross-sectional view of compressor according to mode of execution 1 of Fig. 2 for intercepting along Fig. 1 center line II-II.
Fig. 3 is the schematic perspective view of the compressor according to mode of execution 1, the figure shows the configuration of access, the first end face, inner peripheral surface, the second end face, anechoic chamber and exit passageway.
Fig. 4 is the partial enlargement cross-sectional view of the compressor according to mode of execution 1.
Fig. 5 is the partial enlargement cross-sectional view of the compressor according to mode of execution 2.
Fig. 6 is the schematic perspective view of the compressor according to mode of execution 2, the figure shows the configuration of access, the first end face, inner peripheral surface, intermediate member, the first anechoic chamber, the second end face, the second anechoic chamber and exit passageway.
Fig. 7 is the partial enlargement cross-sectional view of the compressor according to mode of execution 3.
Fig. 8 is the stereogram of the intermediate member of compressor according to mode of execution 3.
Fig. 9 is the partial enlargement cross-sectional view of the compressor according to mode of execution 4.
The cross-sectional view of compressor according to mode of execution 4 of Figure 10 for intercepting along the line X-X in Fig. 9.
Embodiment
Below, with reference to the accompanying drawings embodiments of the present invention 1 to 4 are described.In the following description, front-rear direction supposition as shown in fig. 1.
[mode of execution 1]
As shown in fig. 1, cylinder block 1, fore shell 3, back cover 5, piston 25 and drive unit 4 is comprised according to the compressor with variable displacement (hereinafter referred to as compressor) with single head pison of mode of execution 1.
Cylinder block 1 has multiple cylinder thorax 1a, and described multiple cylinder thorax 1a is along the circumferential direction formed side by side with fixing angle intervals and extends parallel to each other.Each cylinder thorax 1a in cylinder thorax 1a is the cylindrical chamber running through cylinder block 1 along front-rear direction.Each piston 25 that each cylinder thorax 1a in cylinder thorax 1a holds in piston 25 can move back and forth along front-rear direction to make this piston 25.This front-rear direction is the example according to " axial direction " of the present invention.Front side is the example of " end side in the axial direction ", and rear side is the example of " opposite side in the axial direction ".
Cylinder block 1 is maintained at the fore shell 3 that is arranged in before it and is arranged between the back cover 5 located on rear side of it, and in this condition fastening with multiple bolt 7.In other words, fore shell 3 is fixed to the front portion of cylinder block 1, and back cover 5 is fixed to the rear portion of cylinder block 1.Fore shell 3 has the crankshaft room 9 be formed in wherein.Valve cell 29 is furnished with between back cover 5 and cylinder block 1.
Such as, drive unit 4 comprises live axle 11, pallet 15, swash plate 17 and linkage mechanism 23.
Axis hole 3a is formed in fore shell 3.Axis hole 1b is formed in cylinder block 1.
Live axle 11 extends along front-rear direction in crankshaft room 9.The front end of live axle 11 projects to the outside of fore shell 3 by axis hole 3a.Shaft sealer 9s and bearing means 10a is fitted with in axis hole 3a.Gap between shaft sealer 9s sealing drive shaft 11 and fore shell 3.The rearward end of live axle 11 projects in axis hole 1b.Bearing means 10b is provided with between the rearward end of axis hole 1b and live axle 11.Live axle 11 is rotatably bearing in axis hole 3a and 1b, wherein, is plugged with bearing means 10a and 10b between axis hole 3a and 1b and live axle 11.
Pallet 15 is press-fitted in crankshaft room 9 around live axle 11.Bearing means 10c is provided with between pallet 15 and fore shell 3.
The front end of live axle 11 is fixed with pulley 13.Bearing means 3b is furnished with between pulley 13 and fore shell 3.The band 13c driven by motor or the motor of vehicle is wrapped on pulley 13.Magnetic clutch can be set and replace pulley 13.
Swash plate 17 driven shaft 11 in crankshaft room 9 runs through.Swash plate 17 is positioned at after pallet 15.Live axle 11 circumferentially and between pallet 15 and swash plate 17, be provided with inclination angle reduce spring 19.In crank chamber 9, live axle 11 is fixed with circlip 11a, and circumferentially and between circlip 11a and swash plate 17 is provided with Returnning spring 21 at live axle 11.
Pallet 15 and swash plate 17 are connected to each other by linkage mechanism 23 in crank chamber 9.Linkage mechanism 23 supports swash plate 17 to make it possible to change the tilt angle of swash plate 17 relative to pallet 15.
Each piston 25 in piston 25 and be provided with a pair anterior-posterior piston shoes 27a and 27b between swash plate 17.The rotation of swash plate 17 is converted to the to-and-fro motion on the front-rear direction of corresponding piston 25 to piston shoes 27a and 27b by separately.
In each cylinder thorax 1a in cylinder thorax 1a, the ear end face of each piston 25 in piston 25 is in the face of valve cell 29.According to this configuration, in the rear portion of each cylinder thorax 1a in each comfortable cylinder thorax 1a of piston 25, define pressing chamber 31.Valve cell 29 operates to suck refrigerant gas from suction chamber 5a to pressing chamber 31 when piston 25 is in suction stroke.Valve cell 29 also operates to be limited in pressing chamber 31 by refrigerant gas when piston is in compression stroke, and makes refrigerant gas be disposed to drain chamber 5b from pressing chamber 31 when piston 25 is in discharge stroke.
As shown in Figures 1 and 2, back cover 5 has the drain chamber 5b of suction chamber 5a and the radially outward location of radially-inwardly locating.Drain chamber 5b along the circumferential direction extends with circlewise around suction chamber 5a.Back cover 5 also has ingress port 5h, makes suction chamber 5a and ft connection by this ingress port 5h.Suction chamber 5a is limited by the annular wall 5m be formed in back cover 5.Drain chamber 5b is limited by the periphery wall 5n of annular wall 5m and back cover 5.
As shown in fig. 1, crankshaft room 9 and suction chamber 5a are connected to each other by discharge route 42.Crankshaft room 9 and drain chamber 5b are connected to each other by service duct 44 and 46.Back cover 5 accommodates volume control valves 2.Volume control valves 2 is arranged between service duct 44 and 46.
The aperture of volume control valves 2 is controlled by power supply and externally regulates, thus control to introduce the amount being in the refrigerant gas high pressure in crankshaft room 9 and the balance between the amount being introduced the refrigerant gas in suction chamber 5a from crankshaft room 9 by discharge route 42 from drain chamber 5b by service duct 44 and 46, and determine the interior pressure of crankshaft room 9.Along with the change of pressure in crankshaft room 9, the pressure reduction between crankshaft room 9 and pressing chamber 31 changes, the change of the tilt angle of swash plate 17, and the stroke of therefore regulating piston 25, i.e. the discharge volume of compressor.
The outer surface of cylinder block 1 is provided with outlet port 1h, and drain chamber 5b is by this outlet port 1h and ft connection.Baffler 100 is provided with between drain chamber 5b and outlet port 1h.
As shown in Figure 1 to Figure 4, baffler 100 has anechoic chamber 110, access 101 and exit passageway 102a and 102b.
Back cover 5 has closed end circular port 5G, and this closed end circular port 5G extends back from the back wall surface 5r of drain chamber 5b.The circle tube inner wall surface of closed end circular port 5G is inner peripheral surface 113.The rounded bottom surface of closed end circular port 5G is the second end face 112 of the rear end being positioned at inner peripheral surface 113.Pan-shaped cover component 109 has been press-fitted in closed end circular port 5G.As shown in Figure 4, the front surface of lid component 109 is concordant with back wall surface 5r substantially.The rear surface of lid component 109 is first end face 111 at the first end place being positioned at inner peripheral surface 113.As shown in Figure 3, anechoic chamber 110 is the cylindrical chamber limited by inner peripheral surface 113, first end face 111 and the second end face 112.
As shown in Figures 1 and 2, in back cover 5, anechoic chamber 110 is positioned between annular wall 5m and periphery wall 5n.As shown in Figure 2, back cover 5 has multiple bolt-inserting hole 6, and bolt 7 is inserted in the plurality of bolt-inserting hole 6.In drain chamber 5b, anechoic chamber 110 is positioned between two bolt-inserting hole 6a and 6b.As shown in fig. 1, the distance B of the ear end face 5e of the front-end face 5f to drain chamber 5b from back cover 5 is equal to or less than from the front-end face 5f of back cover 5 to the distance A of the second end face 112 of anechoic chamber 111.
As shown in Fig. 2 to Fig. 4, access 101 is the circular port running through lid component 109 in the central authorities of lid component 109 along front-rear direction.Access 101 is formed in the first end face 111 has round-shaped inlet opens 101h.That is, the lid component 109 being fitted in the front inner of inner peripheral surface 113 by drain chamber 5b and anechoic chamber 110 separated from one another and provide the first end face 111, access 101 and inlet opens 101h.Access 101 provides and is communicated with between drain chamber 5b with anechoic chamber 110.
As shown in Figures 1 and 2, in back cover 5, exit passageway 102a is formed with.Exit passageway 102a is the hole straightly extended towards inner peripheral surface 113 relative to the part 5S of drain chamber 5b radially outward location of the front surface from back cover 5.Exit passageway 102a is tilt relative to front-rear direction.
As shown in fig. 1, exit passageway 102b is the hole formed in valve cell 29 and cylinder block 1, and straightly extends along front-rear direction.The rearward end of exit passageway 102b is communicated with the front end of exit passageway 102a.The front end of exit passageway 102b is communicated with outlet port 1h.
As shown in Figure 1 to Figure 4, exit passageway 102a forms the exit opening 102h with elliptical shape with the second isolated position of end face 112 on inner peripheral surface 113.As shown in Figure 4, the internal diameter D2 of exit passageway 102a is greater than the internal diameter D1 of access 101.
In vehicle air conditioner, the drain chamber 5b of the compressor according to mode of execution 1 constructed as described above is connected to condenser via anechoic chamber 100 and outlet port 1h, this condenser is connected to vaporizer via expansion valve, and this vaporizer is connected to suction chamber 5a via ingress port 5h.When motor etc. drives live axle 11 in rotary manner, refrigerant gas is introduced into pressing chamber 31 with the discharge volume corresponding to the tilt angle of swash plate 17 from suction chamber 5a, and is compressed in pressing chamber 31, and is then disposed in drain chamber 5b.
In this process, if the aperture of volume control valves 2 reduces, so the interior pressure of crankshaft room 9 reduces.Therefore, the tilt angle of swash plate 17 increases, and the stroke of piston 25 increases, and the discharge volume of compressor increases.On the contrary, if the aperture of volume control valves 2 increases, so the interior pressure of crankshaft room 9 increases.Therefore, the tilt angle of swash plate 17 reduces, and the stroke of piston 25 reduces, and the discharge volume of compressor reduces.In this way, the discharge volume of compressor can change according to demand.
As shown in Figures 3 and 4, in this compressor, the refrigerant gas flowing under high pressure of being in drain chamber 5b enters in anechoic chamber 110 by access 101, the inlet opens 101h place that formed in the first end face 111, flow out in exit passageway 102a and 102b being formed in the exit opening 102h place in inner peripheral surface 113, and be disposed to outside at outlet port 1h place.For this compressor, in this process, the flow of refrigerant gas reduces in access 101, and then expands in anechoic chamber 110, makes to decrease exhaust pulse.
Anechoic chamber 110 is the cylindrical chamber limited by cylindrical shape inner peripheral surface 113, first end face 111 and the second end face 112.It is less than the part close to the second end face 112 that inventor has been found that the amplitude of the pulsation of the pressure of the refrigerant gas flowed in anechoic chamber 110 trends towards in the part close to inner peripheral surface 113.Therefore, it is little that the amplitude flowing to the pulsation of the pressure of the refrigerant gas of exit passageway 102a and 102b from anechoic chamber 110 by exit opening 102h is opened at exit passageway 102a the situation that inner peripheral surface 113 can be opened in than exit passageway 102a in the second end face 112 with the situation of the second isolated position of end face 112.
For this compressor, internal diameter D2 due to exit passageway 102a is greater than the internal diameter D1 of access 101, and the flow being therefore introduced into the refrigerant gas exit passageway 102a from anechoic chamber 110 by exit opening 102h unlikely reduces because of exit passageway 102a.Therefore, the little amplitude of the pulsation of the pressure of refrigerant gas can suitably be maintained, until refrigerant gas arrives outlet port 1h.
As described above, compressor can reduce exhaust pulse and therefore, it is possible to reduce the volume of anechoic chamber 110.Therefore, the baffler 100 be arranged in the back cover 5 of this compressor can not be so huge.In addition, because anechoic chamber 110 is positioned between annular wall 5m and periphery wall 5n, therefore can prevent baffler 100 from giving prominence to along the radially outward direction of back cover 5.In addition, owing to being set to the distance B of the ear end face 5e of the front-end face 5f to drain chamber 5b be equal to or less than from back cover 5 to the distance A of the second end face 112 of anechoic chamber 110 from the front-end face 5f of back cover 5, therefore, it is possible to prevent baffler 100 from giving prominence to along the axial direction of back cover 5.
Due to these features, the compressor according to mode of execution 1 can have the size of reduction and suitably reduce exhaust pulse.
In addition, for this compressor, inner peripheral surface 113 and the second end face 112 can by forming closed end circular port 5G and easily being formed in back cover 5, and this closed end circular port 5G caves in backward from drain chamber 5b.In addition, for this compressor, exit passageway 102a and exit opening 102h runs through the hole of the inner peripheral surface 113 of back cover 5 to anechoic chamber 110 obliquely from the part 5S of the front surface of back cover 5 by being formed and can easily be formed.In addition, the first end face 111, access 101 and inlet opens 101h are by being equipped with the lid component 109 with the disc-like shape being wherein formed with opening and easily being formed in the inner side of inner peripheral surface 113.Due to these features, compressor can with low cost manufacture.
[mode of execution 2]
As shwon in Figures 5 and 6, according to the compressor of mode of execution 2 be that anechoic chamber 100 is provided with intermediate member 230 extraly according to the difference of the compressor of mode of execution 1.Identical with according to the compressor of mode of execution 1 according to the remaining part of the configuration of the compressor of mode of execution 2.The parts identical with those parts in mode of execution 1 represent by the reference character identical with those reference characters in mode of execution 1, and will be simplified or omit the description of these parts.
Intermediate member 230 be fitted in inner peripheral surface 113 inner side, between the first end face 111 and the second end face 112.Intermediate member 230 comprises main part 232 and extension part 231.
Main part 232 is disc-like shape, and its outer peripheral edge portion leading thread is to caving inward to form recess 232a.Extension part 231 and main part 232 are integrated.Extension part 231 seals recess 232a and extends forward.The periphery 231e of extension part 231 contacts closely with inner peripheral surface 113.
Anechoic chamber 110 is divided into the fore first anechoic chamber 210a in location and is positioned at the second anechoic chamber 210b at rear portion by the main part 232 of intermediate member 230 and extension part 231.
In intermediate member 230, be formed with the first opening 231h, the second opening 232h and intermediate flow path 233.First opening 231h is formed in the circular port in the front portion of extension part 231.First opening 231h radially runs through extension part 231 and leads to the first anechoic chamber 210a.Second opening 232h is the gap in the rear surface being formed in main part 232 and between recess 232a and inner peripheral surface 113, and leads to the second anechoic chamber 210b.Intermediate flow path 233 is for being formed in the chamber between the extension part 231 of intermediate member 230 and main part 232 and inner peripheral surface 113, and intermediate flow path 233 extends along front-rear direction.Extension part 231 is communicated with the first opening 231h being positioned at its front portion and is communicated with the second opening 232h being positioned at its rear portion.
First opening 231h is formed in the front portion of extension part 231 radially to run through extension part 231.But alternatively, the first opening 231h can be formed in the front portion of extension part 231, the position relative with the first end face 111 in axial direction to run through extension part 231.
As shown in Figure 5, the internal diameter D3 of the first opening 231h is less than the internal diameter D2 of exit passageway 102a.The internal diameter D3 of the first opening 231h is slightly greater than the internal diameter D1 of access 101.
According to the compressor according to mode of execution 2 constructed as mentioned above, the refrigerant gas being in high pressure in drain chamber 5b is flowed in the first anechoic chamber 210a at inlet opens 101h place by access 101, and is then flowed in the second anechoic chamber 210b by the first opening 231h, intermediate flow path 233 and the second opening 232h.Then, refrigerant gas to be flowed out in exit passageway 102a and 102b by exit opening 102h and is disposed to outside by outlet port 1h.In this process, because first the flow of refrigerant gas is reduced by access 101 and then expands in the first anechoic chamber 210a, and then again reduced by intermediate flow path 233 and then expand in the second anechoic chamber 210b, so this compressor can reduce exhaust pulse further.
In addition, in this compressor, the first anechoic chamber 210a is by cylindrical shape inner peripheral surface 113, locate fore first end face 111, be positioned at the main part 232 at the rear portion of the first end face 111 and form with main part 232 and the general cylindrical shape chamber that limits of the extension part 231 extended forward.The amplitude flowing to the pulsation of the pressure of the refrigerant gas in the first anechoic chamber 210a trends towards in the part of the front portion close to extension part 231 more medium and small than the part close to main part 232.Therefore, the situation that the amplitude being flowed to the pulsation of the pressure of the refrigerant gas in the second anechoic chamber 210b by the first opening 231h, intermediate flow path 233 and the second opening 232h can be opened in main part 232 than the first opening 231h in the situation that the first opening 231h is opened in the front portion of extension part 231 is little.
Second anechoic chamber 210b is the cylindrical chamber limited by cylindrical shape inner peripheral surface 113, the second end face 112 being positioned at rear portion and the main part 232 of front portion that is positioned at the second end face 112.The amplitude flowing to the pulsation of the pressure of the refrigerant gas the second anechoic chamber 210b by the first opening 231h, intermediate flow path 233 and the second opening 232h from the first anechoic chamber 210a trends towards in the part close to inner peripheral surface 113 more medium and small than the part close to the second end face 112.Therefore, flowing out amplitude that the second anechoic chamber 210b enters the pulsation of the pressure of the refrigerant gas in exit passageway 102a and 102b has an exit opening 102h being arranged in inner peripheral surface 113 situation at flow passage 102a, can be opened in the situation of the second end face 112 than exit passageway 102a little.
Due to these features, according to the compressor of mode of execution 2, the same with according to the compressor of mode of execution 1, the size of reduction can be had and suitably reduce exhaust pulse.
[mode of execution 3]
As shown in Figures 7 and 8, according to the compressor of mode of execution 3 be that anechoic chamber 100 is provided with three intermediate members 330 extraly according to the difference of the compressor of mode of execution 1.Identical with according to the compressor of mode of execution 1 according to the remaining part of the configuration of the compressor of mode of execution 3.The parts identical with those parts in mode of execution 1 represent by the reference character identical with those reference characters in mode of execution 1, and the description of these parts will be simplified or omit.
Three intermediate members 330 are for having the disc-like shape component of same shape.Each intermediate member 330 is fitted in the inner side of inner peripheral surface 113 abreast between the first end face 111 and the second end face 2 along front-rear direction.Anechoic chamber 110 is divided into four anechoic chambers portion section 310a, 310b, 310c and 310d by intermediate member 330.Relative to any one in intermediate member 330, portion of each anechoic chamber section 310a to 310c being positioned at the front portion of this intermediate member 330 is the example according to " the first anechoic chamber " of the present invention, and portion of each anechoic chamber section 310b to 310d being positioned at the rear portion of this intermediate member 330 is the example according to " the second anechoic chamber " of the present invention.
Many groups the first opening 331, second opening 332 and intermediate flow path 333 is formed in each intermediate member 330.First opening 331, second opening 332 and intermediate flow path 333 are the part by using sharp-pointed needle-shaped tool to pierce through the porose roughly funnel shaped piece outstanding forward that intermediate member 330 is formed.First opening 331 leads in portion of the fore anechoic chamber section 310a to 310c of location.Second opening 332 leads to portion of the anechoic chamber section 310b to 310d being positioned at rear portion.Intermediate flow path 333 provides and is communicated with between the first opening 331 with the second opening 332.
As shown in Figure 7, when observing along front-rear direction, be formed in many groups of the first opening 331, second openings 332 in an intermediate member in two adjacent intermediate members 330 and intermediate flow path 333 is shifted relative to many groups of the first opening 331, second openings 332 in another intermediate member be formed in adjacent two intermediate members 330 and intermediate flow path 333.
According to the compressor according to mode of execution 3 constructed as mentioned above, the refrigerant gas flowed in anechoic chamber 110 passes portion of anechoic chamber section 310a to 310d according to priority.In this process, the flow of refrigerant gas is reduced by this group first opening 331, second opening 332 be formed in each intermediate member 330 and intermediate flow path 333 and is then expanded.In addition, when observing along front-rear direction, due to organize the first opening 331, second opening 332 more and intermediate flow path 333 displaced from one another, therefore along with refrigerant gas flows along serpentine path, refrigerant gas is stirred.Therefore, the amplitude of the pulsation of the pressure of refrigerant gas reduces.
Due to these features, the compressor according to mode of execution 3 can have the size of reduction with according to the compressor of mode of execution 1 and 2 is the same and suitably reduces exhaust pulse.
[mode of execution 4]
As shown in figs. 9 and 10, according to the compressor of mode of execution 4 be that anechoic chamber 100 is provided with agitation means 440 extraly according to the difference of the compressor of mode of execution 1.According to the remaining part of the configuration of the compressor of mode of execution 4 and the identical of the compressor according to mode of execution 1.The parts identical with those parts in mode of execution 1 represent by the reference character identical with those reference characters in mode of execution 1, and the description of these parts will be simplified or omit.
Agitation means 440 is inserted in anechoic chamber 110.Agitation means 440 has multiple minor reflective surface element 441, and the reflecting surface of described multiple minor reflective surface element 441 is crossing with front-rear direction.Such as, by reflective surface elements 441 to be fixed at certain intervals on coil (not shown) and to be placed in anechoic chamber 110 by coil, reflective surface elements 441 is dispersed in anechoic chamber 110.Alternatively, such as, reflective surface elements 441 can be a part for stainless steel cleaner, and wherein stainless steel cleaner is made up of the spiral-shaped thin slice producing in the turnery processing of stainless steel material.
With regard to construct as mentioned above according to regard to the compressor of mode of execution 4, flow to the refrigerant gas in anechoic chamber 110 and stirred by the multiple small reflective surface elements 441 of agitation means 440, the amplitude of the pulsation of the pressure of refrigerant gas is reduced.
Due to these features, the compressor according to mode of execution 4 is the same with the compressor according to mode of execution 1 to 3 can be had the size of reduction and suitably reduce exhaust pulse.
Although as above describe embodiments of the present invention 1 to 4, certainly the invention is not restricted to mode of execution 1 to 4, and multiple change can be made to mode of execution according to demand when not departing from spirit of the present invention.
Such as, in mode of execution 1 to 4, exit opening 102h is formed in the such position in inner peripheral surface 113: towards the first end face 111 spaced apart with the second end face 112 and compared with the first end face 111 closer to the second end face 112.But alternatively, exit opening 102h can be formed in the such position in inner peripheral surface 113: towards the first end face 111 spaced apart with the second end face 112 and compared with the second end face 112 closer to the first end face 111.
In addition, in mode of execution 1 to 4, the internal diameter D2 of exit passageway 102a is greater than the internal diameter D1 of access 101.But alternatively, internal diameter D2 can be less than or equal to internal diameter D1.
In addition, in mode of execution 1 to 4, the distance B of the ear end face 5e of the front-end face 5f to drain chamber 5b from back cover 5 is equal to or less than to the distance A of the second end face 112 of anechoic chamber 110 from the front-end face 5f of back cover 5.But alternatively, anechoic chamber 110 can be configured so that distance A is longer than distance B.
Claims (8)
1. there is a compressor with variable displacement for single head pison, comprising:
Cylinder block, described cylinder block has along the circumferential direction formation abreast and the multiple cylinder thoraxes in axial direction extended parallel to each other;
Fore shell, described fore shell is fixed to the end side on the described axial direction of described cylinder block and has the crankshaft room be formed in described fore shell;
Back cover, described back cover is fixed to another side on the described axial direction of described cylinder block and has and is formed in suction chamber in described back cover and drain chamber;
Multiple piston, described multiple piston is contained in each cylinder thorax in described cylinder thorax separately to move back and forth and define pressing chamber in each cylinder thorax of another side described in described cylinder thorax; And
Drive unit, described drive unit is arranged in described crankshaft room, and each piston in described piston can be made to move back and forth and change the stroke of each piston in described piston,
Described back cover has annular wall, described annular wall by described suction chamber and described drain chamber separated from one another,
To extend along described circumferencial direction and circlewise around described suction chamber between the periphery wall that described drain chamber is formed in described annular wall and described back cover,
Outlet port is formed in described cylinder block or described back cover, described drain chamber by described outlet port and ft connection,
Baffler is arranged between described drain chamber and described outlet port,
Described baffler has anechoic chamber, access and exit passageway; And
Described anechoic chamber is formed in described back cover, and described access provides and is communicated with between described drain chamber with described anechoic chamber, and described exit passageway provides and is communicated with between described anechoic chamber with described outlet port,
Wherein, described anechoic chamber has:
First end face, described first end face is positioned at the end side of described anechoic chamber;
Second end face, described second end face is positioned at another side of described anechoic chamber; And
Have the inner peripheral surface of cylindrical shape, described inner peripheral surface to be positioned between described first end face and described second end face and to extend to another side described from described drain chamber,
Described anechoic chamber is positioned between described annular wall and described periphery wall,
Described access is opened in described first end face, and
Described exit passageway to be opened in described inner peripheral surface and to be positioned at the position of opening with described second end surfaces.
2. the compressor with variable displacement with single head pison according to claim 1, wherein, described inner peripheral surface, described second end face and described exit passageway are formed in described back cover,
Described first end face is formed by the lid component of dish type, described pan-shaped cover component be fitted to described inner peripheral surface inner side and by described drain chamber and described anechoic chamber separated from one another, and
Described access is formed in described lid component.
3. the compressor with variable displacement with single head pison according to claim 2, wherein, described inner peripheral surface and described second end face form closed end circular port, and described closed end circular port caves in towards another side described in described drain chamber, and
Described exit passageway is run through the straight hole of described back cover to described inner peripheral surface from described end side.
4. the compressor with variable displacement with single head pison according to claim 1, wherein, the internal diameter of described exit passageway is greater than the internal diameter of described access.
5. the compressor with variable displacement with single head pison according to claim 1, wherein, the inner side of described inner peripheral surface is fitted with intermediate member, and described anechoic chamber is divided into the first anechoic chamber being positioned at described end side and the second anechoic chamber being positioned at another side described by described intermediate member
The first opening, the second opening and intermediate flow path is formed in described intermediate member, and
Described first opening leads to described first anechoic chamber, and described second opening leads to described second anechoic chamber, and described intermediate flow path provides and is communicated with between described first opening with described second opening.
6. the compressor with variable displacement with single head pison according to claim 5, wherein, described intermediate member comprise dish type main part and with described main part integral and extension part that is that extend towards described end side,
Described first opening is formed in the position being positioned at described end side in described extension part,
Described second opening is formed in the position being positioned at another side described in described main part, and
Described intermediate flow path is formed between the described extension part of described intermediate member and described main part and described inner peripheral surface.
7. the compressor with variable displacement with single head pison according to claim 5, wherein, is fitted with the multiple described intermediate member be arranged side by side along described axial direction in the inner side of described inner peripheral surface, and
When observing along described axial direction, be formed in described first opening in an intermediate member in adjacent two intermediate members, described second opening and described intermediate flow path relative to described first opening, described second opening and the described intermediate flow path shift in another intermediate member be formed in described adjacent two intermediate members.
8. the compressor with variable displacement with single head pison according to claim 1, wherein, be inserted with agitation means in described anechoic chamber, described agitation means has multiple reflective surface elements, and the reflecting surface of described multiple reflective surface elements is crossing with described axial direction.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013149005 | 2013-07-18 | ||
| JP2013-149005 | 2013-07-18 | ||
| JP2014006566A JP5920367B2 (en) | 2013-07-18 | 2014-01-17 | Single-head piston variable displacement compressor |
| JP2014-006566 | 2014-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104295466A true CN104295466A (en) | 2015-01-21 |
Family
ID=51205266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410340608.9A Pending CN104295466A (en) | 2013-07-18 | 2014-07-17 | Variable displacement compressor with single-head pistons |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20150023812A1 (en) |
| EP (1) | EP2826995A3 (en) |
| JP (1) | JP5920367B2 (en) |
| KR (1) | KR20150010604A (en) |
| CN (1) | CN104295466A (en) |
| BR (1) | BR102014017590A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111326137A (en) * | 2018-12-13 | 2020-06-23 | 允匠智能科技(上海)有限公司 | Voice robot interaction system based on office intelligence |
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| JPH09287564A (en) * | 1996-04-23 | 1997-11-04 | Zexel Corp | Reciprocating compressor |
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| KR101212909B1 (en) * | 2010-05-24 | 2012-12-14 | 한라공조주식회사 | Variable displacement swash plate type compressor |
| JP2013002353A (en) * | 2011-06-16 | 2013-01-07 | Sanden Corp | Compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3509560B2 (en) * | 1998-06-15 | 2004-03-22 | 株式会社豊田自動織機 | Oil separation structure of compressor |
| US6705843B1 (en) * | 2002-10-17 | 2004-03-16 | Visteon Global Technologies, Inc. | NVH and gas pulsation reduction in AC compressor |
| JP4888803B2 (en) * | 2005-07-04 | 2012-02-29 | 株式会社ヴァレオジャパン | Compressor |
| JP2009293386A (en) * | 2008-06-02 | 2009-12-17 | Toyota Industries Corp | Compressor |
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2014
- 2014-01-17 JP JP2014006566A patent/JP5920367B2/en active Active
- 2014-07-10 US US14/327,863 patent/US20150023812A1/en not_active Abandoned
- 2014-07-14 KR KR1020140088224A patent/KR20150010604A/en not_active Application Discontinuation
- 2014-07-16 EP EP14177203.8A patent/EP2826995A3/en not_active Withdrawn
- 2014-07-17 CN CN201410340608.9A patent/CN104295466A/en active Pending
- 2014-07-17 BR BR102014017590A patent/BR102014017590A2/en not_active IP Right Cessation
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192725Y (en) * | 1994-06-01 | 1995-03-22 | 菅宝贵 | Muffler |
| JPH09287564A (en) * | 1996-04-23 | 1997-11-04 | Zexel Corp | Reciprocating compressor |
| KR19990023220U (en) * | 1997-12-01 | 1999-07-05 | 배길훈 | Swash plate compressor |
| JP2002250279A (en) * | 2001-02-21 | 2002-09-06 | Zexel Valeo Climate Control Corp | Compressor |
| US20090136366A1 (en) * | 2005-10-28 | 2009-05-28 | Sanden Corporation | Compressor |
| US20100018386A1 (en) * | 2006-03-29 | 2010-01-28 | Kabushiki Kaisha Toyota Jidoshokki | Compressor |
| CN101581243A (en) * | 2009-06-15 | 2009-11-18 | 无锡红湖消声器有限公司 | Diffuse reflection muffler |
| KR101212909B1 (en) * | 2010-05-24 | 2012-12-14 | 한라공조주식회사 | Variable displacement swash plate type compressor |
| JP2013002353A (en) * | 2011-06-16 | 2013-01-07 | Sanden Corp | Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150010604A (en) | 2015-01-28 |
| US20150023812A1 (en) | 2015-01-22 |
| EP2826995A3 (en) | 2015-09-02 |
| JP5920367B2 (en) | 2016-05-18 |
| EP2826995A2 (en) | 2015-01-21 |
| BR102014017590A2 (en) | 2015-10-06 |
| JP2015038344A (en) | 2015-02-26 |
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Application publication date: 20150121 |