CN101363432B

CN101363432B - Refrigerant compressor for motor vehicles

Info

Publication number: CN101363432B
Application number: CN200810094931.7A
Authority: CN
Inventors: 佩尔·卡奇马雷克; 艾克·希尔德布兰特; 冈特·迪特里希
Original assignee: BIZEL REFRIGERATION EQUIPMENT AG
Current assignee: BIZEL REFRIGERATION EQUIPMENT AG; Bitzer Kuehlmaschinenbau GmbH and Co KG
Priority date: 2003-11-17
Filing date: 2004-11-12
Publication date: 2014-08-06
Anticipated expiration: 2024-11-12
Also published as: CN1882780A; DE502004009671D1; ATE434726T1; EP1694964B1; DE10358471A1; WO2005050019A1; BRPI0416682A; PL1694964T3; DK1694964T3; EP1694964A1; CN101363432A; US20060216176A1; CN100523499C; ES2327531T3

Abstract

According to the invention, a refrigerant compressor for motor vehicles, comprising a compressor housing, at least two cylinder bores in the compressor housing, pistons, arranged in the cylinder bores, a driveshaft chamber, arranged in the compressor housing and a piston driveshaft, arranged in the driveshaft chamber, may be improved such as to operate with a minimum amount of lubricant, whereby, in the fitted position for the refrigerant compressor, the driveshaft chamber forms a collection chamber for lubricant in a region thereof at the lowest point in the direction of gravity and over but a part of the extent thereof. The driveshaft chamber comprises wall surfaces on the boundary of the collection chamber, which guide the lubricant accumulating in the driveshaft chamber into the collection chamber and a lubricant pump device removes the lubricant from the collection chamber and pumps the same to lubrication sites.

Description

The coolant compressor of automobile

The application is that the application number submitted on November 12nd, 2004 is 200480033955.1, name is called the dividing an application of Chinese invention patent application of " coolant compressor of automobile ".

Technical field

The present invention relates to a kind of coolant compressor of automobile, comprise a compressor case, at least two be arranged on cylinder-bore in compressor case, be arranged on piston in cylinder-bore, one be arranged on transmission shaft chamber in compressor case and one and be arranged on the indoor piston drive axle of transmission shaft.

Background technique

This coolant compressor has disclosed from prior art.

Their problem is lubricated.

Further, known compressor needs a large amount of lubricant oil, to guarantee that all lubricant housings obtain proper lubrication.

Yet use in a large number the shortcoming of lubricant oil to be, refrigeration agent is dissolved in a large amount of lubricant oil, and refrigeration agent is vaporized again when compressor start, therefore, because oil whip causes lubricated going wrong.

In addition, be dissolved in the greasy property variation that refrigeration agent in lubricant oil causes lubricant oil.

Summary of the invention

Therefore object of the present invention is, to starting the coolant compressor of described type, improves like this, makes this coolant compressor can collect the lubricant oil of discharging by slip ring seal.

This object is achieved thus according to the present invention on a kind of coolant compressor that starts described type,, the invention provides a kind of coolant compressor of automobile that is, and it comprises:

A compressor case,

At least two cylinder-bore that are arranged in compressor case,

Be arranged on the piston in cylinder-bore,

A transmission shaft chamber being arranged in compressor case,

One is arranged on the indoor piston drive axle of transmission shaft,

It is characterized in that, the transmission of described piston drive axle is undertaken by the transmission section of described piston drive axle, this transmission section is through slip ring seal, described slip ring seal is arranged in the lug boss of formation slip ring closed chamber of the first outer housing cover of described compressor case, space is located between slip ring seal and external shaft Sealing, collect by the lubricant oil of slip ring seal in described space, and, described space is connected to cavity by passage, so that the lubricant oil that is collected in described space is supplied to described cavity.

Preferably, on the mounting point of coolant compressor, transmission shaft chamber utilizes the collecting chamber that is only extended and formed in minimum region lubricant oil by its a part of extension on gravitational direction.

Further embodiment is provided as, and transmission shaft chamber has wall, and this wall connects collecting chamber and the lubricant oil of the indoor appearance of transmission shaft is transported to collecting chamber.

Another embodiment is provided as, and lubricating oil conveyor receives lubricant oil and is transported to lubricant housings from collecting chamber.

Utilize the collecting chamber only extending by a part of extension of transmission shaft chamber according to of the present invention, the possibility of existence is to reduce the needed lubricants capacity of function of lubricating oil conveyor, and therefore, reduce the problem relevant to known large lubricants capacity simultaneously.

A kind of useful especially solution is, wall is to be substantially transported to collecting chamber by whole lubricant oil of the indoor appearance of transmission shaft, thereby guarantee that thus lubricant oil is not collected in the depression position that collecting chamber side has, this lubricant oil can not be accepted by lubricating oil conveyor in these depression positions, but can cause strengthening required lubricants capacity.

A kind of solution that meets especially object is that the drive shaft axis tilt distribution of a part of wall and piston drive axle, to reduce thus the extension of collecting chamber in drive shaft axis direction.

In structure, a kind of useful especially solution is in this regard, the outer housing cover adjacency of collecting chamber and compressor case.

For simple assemble compressible machine shell, preferably, outer housing cover arranges like this, makes itself and vertical extension of drive shaft axis of piston drive axle.

In order to collect the whole lubricant oil that occur in compressor case by collecting chamber, transmission shaft chamber is on the gravitational direction of compressor mounting point below the cylinder chamber in compressor case.

Cylinder chamber preferably also forms like this, lubricant oil that its inside is occurred is substantially enterprising enters transmission shaft chamber, therefore and in cylinder chamber, substantially do not form additional collecting chamber yet, these collecting chamber detention lubricant oil, and therefore strengthen on the whole lubricants capacity, and therefore to not improving according to the lubricated of coolant compressor of the present invention.

In principle, according in this solution of the present invention, it is contemplated that, wall and collecting chamber consist of the inserting member having in compressor.

But a kind of useful especially solution is in structure, collecting chamber integrally forms in a propeller section of compressor case.

In addition same useful, in propeller section, integrally form wall from lubricant oil to collecting chamber that carry.

In structure, a kind of useful especially solution is, the propeller section of compressor case forms to the groove of collecting chamber inclination.

In order can be arranged on without any problems on automobile according to coolant compressor of the present invention, fact proved meet especially object be, collecting chamber is drive shaft axis with respect to mounting point maximum positive/negative 35 °, and what particularly in the situation of the inclination of maximum positive/negative 15 °, be always propeller section is positioned at lowermost portion region.

In addition, useful, collecting chamber around the drive shaft axis of piston drive axle with respect to mounting point maximum positive/negative 90 °, is particularly collected lubricant oil in the situation of the inclination of maximum positive/negative 45 ° at compressor case all the time.

Aspect the formation of lubricating oil conveyor, be not described in more detail up till now.In principle, it is contemplated that in this regard and use any conventional lubricating oil conveyor.

Aspect simple in its structure, a kind of useful especially solution is, lubricating oil conveyor comprises a lubricant oil back-up ring embedding in collecting chamber.

This lubricant oil back-up ring can be by suitable transmission device transmission.A kind of solution that meets especially object is that lubricant oil back-up ring is by piston drive shaft drive.

In structure, especially simply, piston drive axle carries lubricant oil back-up ring.

Aspect the arranging of lubricant oil back-up ring, be not described in more detail up till now.For the reason of the advantageous overall plan of tool, fact proved and meet object, lubricant oil back-up ring arranges near the nearest compressor case lid of collecting chamber.

Lubricant oil back-up ring preferably arranges like this, and its perpendicular on mounting point is distributed.

Lubricating oil conveyor has in the situation of lubricant oil back-up ring and arranges like this, makes it preferably in compressor case, have the collecting chamber of the lubricant oil for being thrown away by lubricant oil back-up ring.

In order to give collecting chamber charging-up lubricant oil, preferably collecting chamber arranges like this, makes to get rid of to collection surface and the lubricant oil that flows down from this collection surface to enter this collecting chamber.

In principle, it is contemplated that, collection surface and collecting chamber are arranged on any suitable position of compressor case.

The advantageous solution of a kind of special tool is that collecting chamber is arranged in outer housing cover.

In addition, the advantageous solution of another tool is that collection surface is arranged on outer housing cover.

For the lubricant oil of being collected by collection surface is imported in collecting chamber better, preferably lubricating oil conveyor has lubricant oil is imported to the guiding rib in collecting chamber.

At least a portion that lubricant oil is transported to lubricant housings for example can be undertaken by the passage having in compressor case.

But a kind of useful especially solution is that lubricating oil conveyor comprises one and the integrated servo-lubrication oil of piston drive axle passage.This servo-lubrication oil passage by piston drive axle can be especially simply to each lubricant housings supplying lubricating oil of this piston drive axle.

At servo-lubrication oil passage, can from collecting chamber, carry lubricated oil condition, the lubricant oil of servo-lubrication oil passage is supplied with and can structurally be realized especially simply.In this regard, useful especially, collecting chamber end face directly with piston drive axle adjacency, and so grease channel directly pass in collecting chamber.

For supplying with each lubricant housings of piston drive axle, fact proved and meet object, servo-lubrication oil passage has perpendicular distribution for the lubricant oil supply passage of piston drive axle lubricant housings.

This and lubricant oil supply passage grease channel vertical distribution has improved lubricant oil conveying, this be because, rotation due to piston drive axle, centrifugal action is in the lubricant oil in lubricant oil supply passage, and centrifugal force is radially transported to lubricant housings separately by lubricant oil and servo-lubrication oil passage, thereby produces thus pump action.

Aspect the overall oil filling amount existing on coolant compressor of the present invention, be not described in more detail up till now.Adding amount, reducing like this according to having advantage ground in solution of the present invention, makes it be less than the twice of coolant compressor displacement.

More tool is advantageous, and the adding amount of lubricant oil is less than 1.5 times of coolant compressor displacement.

As to the embodiment's that introduced up till now selection or supplement, the described object of beginning is also achieved according to the present invention thus by a kind of coolant compressor that starts described type, and piston drive axle is only bearing in the sliding layer with sliding bearing on sliding bearing with low lubricity in compressor case.

Due to the sliding layer of this low lubricity, likely reduce as far as possible the adding amount of lubricant oil, even can interrupt the conveying of lubricant oil on time, and there will not be damage in the region of sliding bearing.

In addition, the advantage of sliding bearing is that sliding bearing has with respect to vibration, the stability of the vibration of particularly stopping.

For also can low lubricity forming according to other lubricant housings in this solution of the present invention, preferably on piston drive axle, utilize the driving component of the sliding supported condition piston with low lubricity sliding layer.

For example can on piston drive axle, for example, on its eccentric body, there is the sliding layer of this low lubricity.

But, useful especially, on driving component, there is the sliding layer of low lubricity.

This driving component is for example connecting rod, at it, is bonded in the connecting rod eye on piston drive axle and has this sliding layer.

In addition the sliding supported condition that, preferably driving component utilization has low lubricity sliding layer is on piston.

In this case, for example also can be when using connecting rod as driving component wrist pin there is the sliding layer of this low lubricity.

But, in a kind of solution that meets object of manufacture view, be to be bonded on the sliding layer that connecting rod eye on wrist pin has low lubricity.

The guiding of piston also needs to lubricate conventionally.

But, according in this solution of the present invention, on cylinder surface of contact, guide to the same low lubricity of piston.

This low lubricity ground guiding of piston for example can realize thus, and cylinder surface of contact has the sliding layer of low lubricity.

The solution that meets object in a kind of structure is, piston has the piston ring of low lubricity, and then piston can directly move on cylinder surface of contact.

As to this supplement or select and it is contemplated that, piston particularly has the sliding layer of low lubricity on piston skirt.

In piston guide, have in the sliding layer situation of this low lubricity, according to coolant compressor of the present invention, can there is advantage and make following further formation, on this coolant compressor without cylinder liner on compressor case, guide piston, namely substantially directly in the cylinder-bore in compressor case, guide piston.

Low lubricity sliding layer itself describes in detail with contacting no longer of each embodiment of introducing up till now.

The sliding layer of low lubricity refer in this regard on this sliding layer can regular interruption lubricant oil lubricated, and there will not be damage in sliding bearing region separately.Under extreme case, the sliding layer of low lubricity forms like this, makes it have dry maneuverability, is namely applicable to the bearing structure of long period non lubricant oil.

The advantageous formation of a kind of special tool of this low lubricity sliding layer is that this sliding layer comprises PTFE, namely teflon.

In addition, the sliding layer of this low lubricity can improve thus, i.e. the additive of its stability of the interior filling raising of PTFE is CaF for example.

The advantageous solution of another tool is that the sliding layer of low lubricity comprises the porous layer of the sintered bronze equally with good low lubrication property.

A kind of useful especially solution is, Filled PTEF in the porous layer of sintered bronze.

Aspect piston drive shaft drive, under contacting, the embodiment be not up till now described in more detail.Therefore usefully especially concerning the bearing structure setting of piston drive axle be, piston drive axle can be transmitted and not be subject to the transverse force of back flow side, namely with the power of drive shaft axis transversal orientation, because the construction design of journal bearings of piston drive axle needn't be considered this transverse force thus.

In this regard, useful especially, piston drive axle can pass through driven by clutches, and wherein, clutch preferably forms as magnetic clutch.

About the transmission device of clutch, this clutch can pass through driving component transmission.

For avoiding by this clutch, transverse force being imported on piston drive axle, preferably the driving component of clutch is bearing on compressor case by rolling bearing aspect that at it.Therefore all transverse forces that act on driving component all act on compressor case by rolling bearing, but with the degree Main Function that obviously reduces in piston drive axle.

Driving component can be the driving component of any type of clutch.For example it can be the drive wheel of clutch, can be also for example driving gear.

In particular for the selectable mode of the driving component using on automobile, driving component is belt pulley, wherein, with obvious degree, according to belt tension, occurs transverse force.

Accompanying drawing explanation

Other features and advantages of the present invention are the theme of following description and an embodiment's of diagram accompanying drawing.

Wherein:

Fig. 1 illustrates the longitudinal section according to coolant compressor embodiment of the present invention;

Fig. 2 illustrates along the section of Fig. 1 line segment 2-2;

Fig. 3 illustrates along the section of Fig. 1 line segment 3-3;

Fig. 4 illustrates the sliding layer section packing into according in coolant compressor bearing portion of the present invention;

Fig. 5 illustrates along the section of Fig. 1 line segment 5-5;

Fig. 6 illustrates the perspective view of outer housing cover shown in Fig. 5;

Fig. 7 illustrates along the section of Fig. 5 line segment 7-7;

Fig. 8 illustrates along Fig. 3 line segment 8-8 around the part enlarged view in piston drive axle region;

Fig. 9 illustrates along the section of Fig. 2 line segment 9-9; And

Figure 10 is along the section of Fig. 2 line segment 10-10.

Embodiment

Shown in Fig. 1, according to the present invention, for the embodiment of the coolant compressor of automobile, comprise the compressor cases of whole employing 10 marks, this shell comprises housing 12, and this housing utilizes on the first outer housing cover 14 and opposing side and utilizes second housing to cover 16 sealings in one side.

Compressor case 10 can be divided on the whole for example comprise the cylinder section 20 of two cylinder seats 22 and 24 (Fig. 2) and in the Vertical direction of mounting point the propeller section below cylinder section 20 26, the inside can be around the whole piston drive axles 30 that adopt 30 marks of drive shaft axis 32 rotating supports.

In this regard, piston drive axle 30 is bearing in the region of clutch shaft bearing position 34 and the second bearing portion 36, and it is interior near on the face of outer housing cover 14 that this clutch shaft bearing position is arranged on frame 12, and this second bearing portion is arranged on second housing lid 16.

Bearing portion 34 by preferably on frame 12 the first ring body 40 of global formation form, the inside packs first sliding bearing sleeve 42 with low lubricity sliding layer 44 into, wherein, piston drive axle 30 utilizes the outer surface forming as the first slip surface 45 to be slidably bearing on sliding bearing sleeve 42.The first slip surface 45 is in this regard in the first supporting section 46 in piston drive axle 30.

The second bearing portion 36 consists of the second annular solid 50 of global formation on second housing lid 16.Is second sliding bearing sleeve 52 with low lubricity sliding layer in the second annular solid 50, and the outer surface that piston drive axle 30 utilizes the second supporting section 56 of piston drive axle 30 to form as the second slip surface 55 is bearing on sliding layer.

Piston drive axle 30 for example has the first eccentric body 60 and the second eccentric body 62 aspect that at it, wherein, at the first eccentric body 60 upper support first connecting rods 64 and second connecting rod 66, and on the second eccentric body rotatable support third connecting rod 68 and the 4th connecting rod 70.

As shown in Figure 2, the piston 80 of third connecting rod 68 transmission cylinder seats 24 for example, and the piston 80 of the 4th connecting rod 70 transmission cylinder seats 22.

In the same manner, the piston of the piston of first connecting rod 64 transmission cylinder blocks 24 and second connecting rod 66 transmission cylinder blocks 22.

Each connecting rod 64,66,68,70 utilizes its big connecting rod eye 82 to be bearing on eccentric body 60,62 separately in the mode of sliding bearing, and the small rod eye 84 of connecting rod passes through wrist pin 86 rotatable support on piston 80 separately separately.

In this regard, the bearing structure of small rod eye 84 also forms as sliding bearing on wrist pin 86.

Preferably big connecting rod eye 82 and small rod eye 84 have the sliding layer 88 of low lubricity separately.

As shown in Figure 2, each piston 80 by from its that aspect movably in the interior guiding of cylinder surface of contact 100 of cylinder-bore 98, exactly preferably at least by piston ring 102, guide, this piston ring arranges near piston bottom 106 piston skirt 104 is interior.In addition, piston 80 effectively separately also guides by the outer surface 108 of piston skirt 104, and this piston skirt is arranged on the face that piston ring 102 is relative with piston bottom 106.

Piston ring 102 preferably forms like this, and its outer surface 110 sliding on cylinder surface of contact 100 is consisted of the material that comprises PTFE, and wherein, for example cylinder surface of contact 100 forms as the aluminium outer surface of the processing of the frame 12 of being manufactured by cast aluminium and particularly sclerosis.

In addition, for example the outer surface 108 of piston skirt 104 also has the sliding layer 112 that comprises PTFE.

By piston ring 102 utilization, comprise that the described formation of PTFE outer surface 110 and slip surface 112 have the material that comprises PTFE, piston 80 also on the whole low lubricity ground in the interior guiding of cylinder-bore 98.

Then cylinder-bore 98 also seals by valve plates 116 aspect that at it, and is the valve not illustrating in figure in valve plates, and this valve is covered by cylinder head 118 from its aspect.

The transmission of piston drive axle 30 is undertaken by the transmission section 120 of piston drive axle 30, this transmission section is on the face relative with the second bearing portion 36 at clutch shaft bearing position 34 and stretch by this facing epitaxy, this transmission section is from its that aspect through slip ring seal 122, and the latter is arranged in the lug boss 126 of formation slip ring closed chamber 124 of the first outer housing cover 14.

The end section 128 of protruding from compressor case 10 by slip ring seal 122 at piston drive axle 30, the clutch plate 130 of the magnetic clutch of overall employing 132 marks is set, wherein, the Li that clutch plate 130 coordinates by flexible ring 136 sections of remaining on and hold 128 closes device Cong Dong Pan Grains 138.

In addition, magnetic clutch 132 comprise one can transmission belt pulley 140, it from its that aspect by rolling bearing 142 rotatable support on the lug boss 126 of the first outer housing cover 14.

Belt pulley 140 also comprises a ring segment 144, and clutch plate 130 is reasonably close in friction above, be exactly ring segment 144 by being arranged on belt pulley 140 with clutch plate 130 opposing sides on and fixedly remain on the electromagnet 146 on lug boss 126.

By the energising of electromagnet 146, clutch plate 130 is pulled to and rubs and be reasonably close to the ring segment 144 of belt pulley 140 and by the belt pulley 140 of transmission, driven thus, wherein, by belt transmission, act on the one-sided of belt pulley 140 generally and accepted by the rolling bearing 142 of belt pulley 140 with the power of drive shaft axis 32 transversal orientations.

The transmission of the transmission section 120 of piston drive axle 30 is closed device Cong Dong Pan Grains 138 by clutch plate 130 by flexible ring 136 and Li and is carried out, and be not subject to the outside transverse force particularly producing by belt transmission, thereby particularly in the region at clutch shaft bearing position 34 also without accepting this transverse force.

The unique transverse force that also therefore will be accepted by bearing portion 34 and 36 by piston drive axle 30 is passed through the transmission of connecting rod 64,66,68,70 from piston 80.

As Fig. 4, amplification illustrates, sliding layer 44, 54 form like this, make it have the supporting mass 150 of steel, the porous layer 152 of sintered bronze is set above, wherein, in the hole of sintered bronze layer 152 or space 154, for example the material 156 that comprises PTFE (teflon) and additive is filled in roll extrusion, thereby at this sliding layer 44, on 54 slidingsurface 158, there is sintered bronze and the porous layer 152 that comprises that PTFE material 156 forms, they are common low lubricity or the dry roadability at least on time of forming on slidingsurface 158, thereby be close to separately this lip-deep slip surface 45, even if 55 quite a while non lubricant oils also guide and supporting by slidingsurface 158 or on slidingsurface 158 without wearing and tearing ground substantially.

Preferably, not only there is inner link with sliding layer 44 and 54 in this structure of low lubricity or dry maneuverability slidingsurface 158, and in the big connecting rod eye 82 of connecting rod 64,66,68,70 and the region of small rod eye 84 separately, also as sliding layer 88, forms and preferably in the formation of the sliding layer on piston skirt 104 112 and piston ring 102, form.

Although at sliding layer 44,54,88,112 and the piston ring 102 according to thering is low lubricity on compressor of the present invention, but this compressor also uses lubricant oil work, this lubricant oil is transported to each sliding bearing by means of lubricating oil conveyor 160 at least partly compressor case 10 is interior.

Lubricating oil conveyor 160 comprises lubricant oil back-up ring 162, and it and drive shaft axis 32 coaxially can be in company with 30 rotations of piston drive axle.For this reason, lubricant oil back-up ring 162 remains on the disequilibrium regulating body 164 of piston drive axle 30 and near second housing lid 16, wherein, lubricant oil back-up ring 162 is around the outer surface (Fig. 1) of the second bearing portion 36 integrally formed annular solid 50 on second housing lid 16.

Lubricant oil back-up ring 162 is in this regard in floodlubrication oil sump 166, this pond forms in the inside of compressor case 10 and lubricant oil is got rid of to the inner side 168 of second housing lid 16 from lubricating oil bath 166, wherein, inner side 168 has and the radially-arranged rib 170 (Fig. 5 of transmission shaft, 6, 7), the collection surface 172 moving after relatively arranging with rib 170 between them, these collection surfaces and rib 170 cover at second housing the collection cavity 174 that 16 interior formation depressions embed jointly, wherein, collection cavity 174 is only between rib 170, rib extends on piston drive axle 30 with Vertical direction on the mounting point of coolant compressor.The lubricant oil being got rid of in collection cavity 174 by lubricant oil back-up ring 162 is attached to motion on collection surface 172 and on collection surface 172 in this regard at least partly, and by rib 170, according to gravity, in the direction of piston drive axle 30, guides when needed.

Collection surface 172 extends to the collecting chamber 176 of lubricant oil in this regard always, and as appreciable from Fig. 1 and Fig. 7, this collecting chamber covers the 16 interior end faces 178 near piston drive axle and opens wide and arrange to this end face at second housing.

End face 178s from piston drive axle 30, to this axle is inner, extend an oily passage 180 of servo-lubrication with the coaxial distribution of drive shaft axis 32, exactly preferably from end face 178 until in transmission section 120, wherein, from grease channel 180, branch out and the radially-arranged lubricant oil supply passage of drive shaft axis 32.

This point is for example the lubricant oil supply passage 182 and 184 having in clutch shaft bearing section 46 and the second bearing section 56, they have pass into mouthfuls 186,188 in slip surfaces 45 or 55, by these, are passed into and mouthful the slip surface 45 on the sliding layer 44,54 of sliding bearing sleeve 42 or 52 or 55 sliding bearing structure are lubricated.

In addition, preferably also from central grease channel 180, branch out lubricant oil supply passage 190,192,194 and 196, their each leisures passing in mouth 210,212,214,216, for lubricating the big connecting rod eye 82 (Fig. 1) of each connecting rod 64,66,68,70 that utilizes its sliding layer 88 sliding bearings on slip surface 200,202,204,206 on connecting rod 64,66,68,70 slip surfaces 200,202,204,206.

The lubricant mist lubricating by being produced by the interior lubricant oil back-up ring 162 of compressor case 10 in piston ring 102 regions of the sliding layer 88 of small rod eye 84 and sliding layer 112 and piston 80 carries out.

Finally, from central grease channel 180, also branch out a lubricant oil supply passage 220, for supplying with slip ring seal 122 lubricant oil.

In addition, as shown in Figure 1, slip ring seal chamber 124 is in the interior such formation of lug boss 126, make this indoor collection and block the lubricant oil of discharging from slip ring seal 122, wherein, preferred whole slip ring seal 122 immerses and is arranged in the lubricant oil of gear in slip ring seal chamber 124 and makes lubricant oil leave slip ring seal chamber 124 by the overflow ducts 222 being arranged on above first ring body 40.

The lubricant oil of discharging by slip ring seal 122 is collected in as shown in Figure 8 in the space 125 between slip ring seal 122 and the shaft seal 123 of outside and is transported to cavity 219 by passage 218.

The cylinder section 20 by compressor case 10 around cylinder chamber 224 inner and by propeller section 26 around the inner whole lubricant oil that occur in transmission shaft chamber 226 according to gravity, be collected in the groove 228 forming by propeller section 26, wherein, the staggered transition of cylinder chamber 224 and transmission shaft chamber 226, this groove as shown in Figure 1 in the direction of drive shaft axis 32 from the side at clutch shaft bearing position 34 until the side of second housing lid 16 extend upward and form a collecting chamber 230 under direct connection the with second housing lid 16, collected inside is for forming the lubricant oil of lubricating oil bath 166.In this regard, preferably together with its wall 232 and bottom surface 234, the direction to collecting chamber 230 tilts geosyncline 228, so as by enter whole lubricant oil in groove 228 according to gravity transfer to collecting chamber 230.

The lubricant oil overflowing from the overflow ducts 222 of slip ring seal chamber 124 also enters in groove 228 around first ring body 40 and is transported in this regard collecting chamber 230.In addition, the lubricant oil of cavity 219 interior collections is also transported to transmission shaft chamber 226 by passage 236.

Collecting chamber 230 preferably forms like this, make its inside for the lubricant oil that forms lubricating oil bath 166 at drive shaft axis with respect to maximum positive/negative 35 ° of desirable mounting point, preferably maximum positive/negative 15 ° while tilting in the vertical direction, or compressor case is around drive shaft axis 22 with maximum positive/negative 90 °, preferably maximum positive/negative 45 ° while rotating with respect to best position, still by lubricant oil back-up ring 162, control also and can be thrown in collection cavity 174.

Because carrying lubricant oil according in refrigeration agent of the present invention simultaneously, so this lubricant oil of carrying is also carried by the refrigeration agent sucking at least partly again simultaneously.

The refrigeration agent for example entering in compressor case by gas-entered passageway 240 is also carried lubricant oil, and this lubricant oil has been deposited in central air induction passage 240 and has then entered in the branched bottom 242,244 that leads to cylinder seat 22,24.

These branched bottoms 242,244 particularly have collecting area 246,248 as shown in Figure 2 and Figure 7 from their aspects, lubricant oil enters in cylinder chamber 224 from collecting area by discharge route 250,252 and is transported to therefrom groove 228, thereby also can in collecting chamber 230, be collected by the lubricant oil that refrigeration agent is transported to coolant compressor again.

Finally, the refrigeration agent compressing in coolant compressor flows in central pressurized gas passage 260 by branched bottom 256,258, sets out therefrom and from compressor case 10, discharges (Fig. 3,9) by pressurized gas connecting line 262.

For the central pressurized gas passage 260 that makes to heat by hot compressed gas heat insulation with respect to cylinder-bore 98 and gas-entered passageway 240, at the hollow outer shell cavity 270 of the interior moulding of frame 12, they are only connected by pressure equalisation passage 272 with cylinder chamber 224, thereby make to there is no eddy current in these outer shell cavities, particularly static gas shape medium adiabatic (Fig. 9,10).

Claims

1. the coolant compressor of automobile, comprising:

A compressor case (10),

At least two cylinder-bore (98) that are arranged in compressor case (10),

Be arranged on the piston (80) in cylinder-bore (98),

A transmission shaft chamber (226) being arranged in compressor case (10),

A piston drive axle (30) being arranged in transmission shaft chamber (226),

It is characterized in that, the transmission of described piston drive axle (30) is undertaken by the transmission section (120) of described piston drive axle (30), this transmission section (120) is through slip ring seal (122), described slip ring seal (122) is arranged in the lug boss (126) of formation slip ring closed chamber (124) of the first outer housing cover (14) of described compressor case (10), space (125) is located between slip ring seal (122) and external shaft Sealing (123), collect by the lubricant oil of slip ring seal (122) in described space (125), and, described space (125) is connected to cavity (219) by passage (218), so that the lubricant oil that is collected in described space (125) is supplied to described cavity (219).

2. by coolant compressor claimed in claim 1, it is characterized in that, in the mounting point of coolant compressor, transmission shaft chamber (226) utilize the first collecting chamber (230) that is only extended and formed in minimum region lubricant oil by a part of extension of transmission shaft chamber on gravitational direction.

3. by coolant compressor claimed in claim 2, it is characterized in that, transmission shaft chamber (226) has in abutting connection with the wall (232,234) of described the first collecting chamber (230), and described wall is transported to described the first collecting chamber (230) by the lubricant oil of accumulation in transmission shaft chamber (226).

4. by the described coolant compressor of one of claim 2-3, it is characterized in that, lubricating oil conveyor (160) receives lubricant oil and is transported to lubricant housings (44,54,88,112,102) from described the first collecting chamber (230).

5. by coolant compressor claimed in claim 3, it is characterized in that, described wall (232,234) is transported to the first collecting chamber (230) by whole lubricant oil of accumulation in transmission shaft chamber (226) substantially.

6. by coolant compressor claimed in claim 3, it is characterized in that, some walls (234) extend obliquely with respect to the drive shaft axis (32) of piston drive axle (30).

7. by the described coolant compressor of one of claim 2-3, it is characterized in that, described the first collecting chamber (230) covers (16) adjacency with the second housing of compressor case (10).

8. by coolant compressor claimed in claim 7, it is characterized in that, described second housing lid (16) vertically extends with the drive shaft axis (32) of piston drive axle (30).

9. by the coolant compressor one of claim 1-3 described, it is characterized in that, transmission shaft chamber (226) in the mounting point of compressor on gravitational direction below the cylinder chamber in compressor case (10) (224).

10. by coolant compressor claimed in claim 9, it is characterized in that, cylinder chamber (224) forms like this, and lubricant oil that its inside is accumulated is substantially enterprising enters transmission shaft chamber (226).

11. by the described coolant compressor of one of claim 2-3, it is characterized in that, described the first collecting chamber (230) integrally forms in a propeller section (26) of compressor case (10).

12. by the coolant compressor described in claim 11, it is characterized in that, integrally forms wall from lubricant oil to described the first collecting chamber (230) that carry in propeller section (26).

13. by the coolant compressor described in claim 11, it is characterized in that, the propeller section (26) of compressor case (10) forms to the groove (228) of described the first collecting chamber (230) inclination.

14. by the coolant compressor described in claim 11, it is characterized in that, described the first collecting chamber (230) is always the lowermost portion region of propeller section (26) in the inclination with respect to maximum positive/negative 35 ° of mounting point at drive shaft axis (32).

15. by the described coolant compressor of one of claim 2-3, it is characterized in that, described the first collecting chamber (230) is all the time collected lubricant oil around the drive shaft axis (32) of piston drive axle (30) in the inclination with respect to maximum positive/negative 90 ° of mounting point at compressor case (10).

16. by coolant compressor claimed in claim 4, it is characterized in that, lubricating oil conveyor (160) comprises a lubricant oil back-up ring (162) embedding in described the first collecting chamber (230).

17. by the coolant compressor described in claim 16, it is characterized in that, lubricant oil back-up ring (162) is by piston drive axle (30) transmission.

18. by the coolant compressor described in claim 17, it is characterized in that, piston drive axle (30) carries lubricant oil back-up ring (162).

19. by the coolant compressor described in claim 16, it is characterized in that, lubricant oil back-up ring (162) arranges near the second housing lid (16) from the nearest compressor of described the first collecting chamber (230).

20. by the coolant compressor described in claim 16, it is characterized in that, lubricant oil back-up ring (162) substantially perpendicularly extends on mounting point.

21. by the coolant compressor described in claim 16, it is characterized in that, lubricating oil conveyor (160) has second collecting chamber (176) of the lubricant oil for being thrown away by lubricant oil back-up ring (162).

22. by the coolant compressor described in claim 21, it is characterized in that, described the second collecting chamber (176) arranges like this, makes to get rid of to collection surface (172) and the lubricant oil that flows down from this collection surface (172) to enter described the second collecting chamber (176).

23. by the coolant compressor described in claim 21, it is characterized in that, described the second collecting chamber (176) is arranged in second housing lid (16).

24. by the coolant compressor described in claim 22, it is characterized in that, collection surface (172) is arranged on second housing lid (16).

25. by the coolant compressor described in claim 22, it is characterized in that, lubricating oil conveyor (160) has lubricant oil is imported to the guiding rib (170) in described the second collecting chamber (176).

26. by the coolant compressor described in claim 21, it is characterized in that, lubricating oil conveyor (160) comprises the servo-lubrication oil passage (180) being integrated in piston drive axle (30).

27. by the coolant compressor described in claim 26, it is characterized in that, servo-lubrication oil passage (180) can transfer out lubricant oil from the second collecting chamber (176).

28. by the coolant compressor described in claim 26, it is characterized in that, servo-lubrication oil passage (180) has the lubricant oil supply passage (182,184,190,192,194,196,220) for the lubricant housings of piston drive axle (30), and described supply passage and described grease channel vertically extend.

29. by the described coolant compressor of one of claim 1-3, it is characterized in that, the oil filling amount in coolant compressor is less than the twice of the volume of coolant compressor.

30. by the coolant compressor described in claim 29, it is characterized in that, the adding amount of lubricant oil is less than 1.5 times of volume of coolant compressor.

31. by the described coolant compressor of one of claim 1-3, it is characterized in that, piston drive axle (30) is only arranged on sliding bearing in compressor case (10), and sliding bearing has the sliding layer (44,54) of low lubricity.

32. by the coolant compressor described in claim 31, it is characterized in that, at upper the first driving component (64,66,68,70) that utilizes the sliding bearing installation piston (80) with low lubricity sliding layer (88) of piston drive axle (30).

33. by the coolant compressor described in claim 32, it is characterized in that, the sliding bearing that the first driving component (64,66,68,70) utilization has low lubricity sliding layer (88) is arranged on piston (80).

34. by the coolant compressor described in claim 32, it is characterized in that, piston (80) is upper directed at cylinder bearing face (100) in the mode of low lubricity.

35. by the coolant compressor described in claim 34, it is characterized in that, piston (80) has the piston ring (102) of low lubricity.

36. by the coolant compressor described in claim 34, it is characterized in that, piston (80) has the sliding layer (112) of low lubricity.

37. by the coolant compressor described in claim 34, it is characterized in that, piston (80) is upper directed at compressor case (10) without any cylinder liner in the situation that.

38. by the coolant compressor described in claim 31, it is characterized in that, the sliding layer of low lubricity (44,54,88,112) comprises teflon.

39. by the coolant compressor described in claim 38, it is characterized in that, fills the additive that improves its stability in teflon.

40. by the coolant compressor described in claim 31, it is characterized in that, the sliding layer of low lubricity (44,54,88,112) comprises the porous layer (152) of being made by sintered bronze.

41. by the coolant compressor described in claim 40, it is characterized in that the interior filled polytetrafluoroethylene of the porous layer of being made by sintered bronze (152).

42. by the coolant compressor one of claim 1-3 described, it is characterized in that, piston drive axle (30) can be transmitted and not be subject to the transverse force of back flow side.

43. by the coolant compressor described in claim 42, it is characterized in that, piston drive axle (30) can pass through clutch (132) transmission.

44. by the coolant compressor described in claim 43, it is characterized in that, clutch (132) can pass through the second driving component (140) transmission.

45. by the coolant compressor described in claim 44, it is characterized in that, described the second driving component (140) is arranged on compressor case (10) by rolling bearing (142).

46. by the described coolant compressor of one of claim 1-3, it is characterized in that, cavity (219) is integrated in shell (10).