WO2011043185A1 - Compresseur à plateau oscillant - Google Patents

Compresseur à plateau oscillant Download PDF

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Publication number
WO2011043185A1
WO2011043185A1 PCT/JP2010/066318 JP2010066318W WO2011043185A1 WO 2011043185 A1 WO2011043185 A1 WO 2011043185A1 JP 2010066318 W JP2010066318 W JP 2010066318W WO 2011043185 A1 WO2011043185 A1 WO 2011043185A1
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WO
WIPO (PCT)
Prior art keywords
swash plate
shoe
sliding surface
protective layer
piston
Prior art date
Application number
PCT/JP2010/066318
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English (en)
Japanese (ja)
Inventor
和人 渡邉
Original Assignee
株式会社ヴァレオサーマルシステムズ
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Application filed by 株式会社ヴァレオサーマルシステムズ filed Critical 株式会社ヴァレオサーマルシステムズ
Publication of WO2011043185A1 publication Critical patent/WO2011043185A1/fr

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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
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons
    • F04B27/0886—Piston shoes

Definitions

  • the present invention relates to a swash plate compressor. More specifically, for example, the present invention relates to a swash plate type compressor constituting a refrigeration cycle of an air conditioner used in an automobile or the like.
  • a swash plate compressor widely used in an air conditioner for automobiles is configured such that a swash plate (swash plate, SWP) fixed to be inclined with respect to a rotating shaft is inserted into a concave shoe pocket formed on a piston via a shoe.
  • the mooring is performed to convert the swinging and rotating motion of the swash plate into the reciprocating motion of the piston, and the refrigerant gas is sucked, compressed, and discharged.
  • the swash plate type compressor having such a configuration changes the refrigerant gas discharge capacity by changing the inclination angle of the swash plate by changing the pressure in the crank chamber with the control valve and changing the stroke of the piston. Yes.
  • a shoe constituting a swash plate compressor generally has a flat sliding surface portion and a spherical portion opposite to the sliding surface portion, and a shoe pocket formed on the sliding plane of the swash plate and the piston.
  • the swash plate compressor is used as a refrigerant compressor for an air conditioner and is lubricated by lubricating oil circulating with the refrigerant, but the lubrication is insufficient. There is. In particular, when the operation is not performed for a long time, the lubricant on the swash plate surface is washed away by the refrigerant and may be exposed to severe sliding conditions such as lack of lubricant or no lubrication.
  • an Al-Si alloy which is a wear-resistant alloy, is used as the piston, but since Si is a hard particle, it has a high coefficient of friction, for example, when operating in a state of insufficient lubrication, especially for a long period of time. When starting up after leaving it, the amount of lubricating oil will be extremely low, causing frictional heat generation between the piston and the shoe, resulting in a high temperature and seizure between the piston and the shoe. It was.
  • JP 2000-257555 A (Claim 5, FIG. 1)
  • Japanese Patent No. 4214827 (Claims, FIG. 1)
  • the present invention has been made in view of the above problems, and reduces the coefficient of friction between the piston and the shoe when lubrication is insufficient, such as after being left for a long period of time, and prevents seizure during operation. It aims at providing the swash plate type compressor which can suppress damaging the sliding plane of a board.
  • a swash plate compressor rotates a cylinder block having a plurality of cylinder bores, a drive shaft rotatably supported by the cylinder block, and the rotation of the drive shaft.
  • the shoe has a flat sliding surface in contact with the sliding plane of the swash plate, and the flat sliding surface.
  • a spherical sliding surface is formed on the opposite side and is in contact with the sliding surface of the shoe pocket, and is fixed to the thermosetting resin as a base material only on the spherical sliding surface. And a protective layer formed by dispersing a lubricant is formed.
  • a base layer made of a metal phosphate may be formed only between the protective layer and the spherical sliding surface.
  • a base layer made of metal phosphate may be formed between the protective layer and the spherical sliding surface and on the planar sliding surface.
  • the metal phosphate is preferably manganese phosphate or zinc phosphate.
  • the solid lubricant may contain molybdenum disulfide (MoS 2 ).
  • the solid lubricant may contain graphite and / or polytetrafluoroethylene (PTFE).
  • thermosetting resin is preferably polyamideimide (PAI).
  • the thickness of the layer formed on the spherical sliding surface of the shoe is preferably 1.0 to 5.0 ⁇ m.
  • the protective layer is formed by dispersing the solid lubricant on the spherical sliding surface in contact with the sliding surface of the shoe pocket in the shoe constituting the swash plate compressor. Therefore, it is possible to suppress wear at the shoe pocket and the sliding contact portion of the shoe even during operation when lubrication is insufficient, such as after being left for a long time, and to prevent seizure between the shoe pocket and the shoe pocket of the piston. Can do.
  • a protective layer is not formed on the flat sliding surface in contact with the sliding plane of the swash plate of the shoe, the protective layer of the flat sliding surface of the shoe damages the sliding plane of the swash plate. It wo n’t happen.
  • variable capacity compressor or a fixed capacity compressor constituting a refrigeration cycle of an air conditioner used in an automobile or the like. It can also be used in a swash plate type compressor using carbon dioxide or the like as a refrigerant.
  • FIG. 1 It is the section schematic diagram showing one embodiment of the swash plate type compressor concerning the present invention. It is the elements on larger scale of FIG. 1, Comprising: It is the figure which showed the sliding contact state of a shoe and a shoe pocket. It is the figure which showed the other aspect of FIG. 2, Comprising: It is the figure which showed the aspect which does not form a base layer. It is the figure which showed other embodiment of the swash plate type compressor which concerns on this invention, Comprising: The aspect which formed the base layer between the spherical sliding surface of a shoe, and a protective layer, and on the planar sliding surface FIG. In Experiment 1, it is the figure which showed time until an Example and a comparative example lock.
  • FIG. 1 is a schematic cross-sectional view showing an embodiment of a swash plate compressor according to the present invention.
  • a swash plate compressor according to the present invention (hereinafter sometimes simply referred to as a “compressor”) is used in, for example, a vehicle air conditioner, and is hereinafter referred to as a reciprocating variable capacity type that is an embodiment of a swash plate compressor.
  • the configuration of the swash plate compressor will be described as an example, but the present invention should not be construed as being limited to these descriptions.
  • the swash plate compressor 1 is a magnetic clutch type that receives power from the traveling engine 2 and rotates in synchronization with the traveling engine 2, and includes a condenser 3, a pressure reducing device 4, A refrigerating cycle 6 is constructed by pipe connection with the evaporator 5 and the like, and the discharge pressure is controlled to adjust the suction pressure.
  • the compressor 1 includes a cylinder block 11, a rear head 13 assembled via a valve plate 12 on the rear side (right side in the drawing) of the cylinder block 11, and the front side of the cylinder block 11. And a front head 14 assembled so as to close (left side in the figure).
  • the front head 14, the cylinder block 11, the valve plate 12, and the rear head 13 are fastened in the axial direction by fastening bolts 15, and constitute a housing of the entire compressor.
  • the crank chamber 16 provided by the front head 14 and the cylinder block 11 accommodates a drive shaft 17 whose one end projects from the front head 14.
  • a relay member 19 attached in the axial direction by a bolt 18 is fixed to a portion of the drive shaft 17 protruding from the front head 14.
  • the relay member 19 is rotatably fitted to the side portion of the front head 14.
  • the drive pulley 20 connected to the traveling engine 2 via a belt is fixed by means such as screwing.
  • one end side of the drive shaft 17 is hermetically sealed with the front head 14 via a seal member 21 provided between the front shaft 14 and is rotatably supported by a radial bearing 22.
  • the other end of the drive shaft 17 is rotatably supported by a radial bearing 23 accommodated in the cylinder block 11.
  • the cylinder block 11 has a through hole 24 in which the radial bearing 23 is accommodated, a gap 46 that communicates with the through hole 24 and is adjacent to the other end of the drive shaft 17, and the through hole 24 and the gap 46 are the center.
  • a plurality of cylinder bores 25 arranged at equal intervals are formed on the circumference.
  • a piston 26 is inserted into each cylinder bore 25 so as to be able to reciprocate.
  • the piston 26 is formed hollow by joining a head portion 26 a inserted into the cylinder bore 25 and a shoe pocket 26 b protruding into the crank chamber 16 in the axial direction.
  • a thrust flange 27 that rotates integrally with the drive shaft 17 in the crank chamber 16 is fixed to the drive shaft 17.
  • the thrust flange 27 is rotatably supported with respect to the front head 14 via a thrust shaft 28.
  • a swash plate 30 is connected to the thrust flange 27 via a link member 29.
  • the swash plate 30 is attached so as to be tiltable around a hinge ball 31 provided on the drive shaft 17, and rotates integrally with the rotation of the thrust flange 27.
  • the swash plate 30 is moored in the shoe pocket 26b of the piston 26 via a pair of shoes 32 provided on the front and back of the peripheral portion.
  • the shoe 32 includes a spherical sliding surface 32a in contact with the sliding surface 26c of the shoe pocket 26b, and a planar sliding surface 32b in contact with the sliding plane 30a of the swash plate 30, and is spherical.
  • the sliding surface 32a is formed at a position opposite to the planar sliding surface 32b.
  • the flat sliding surface 32 b of the shoe 32 slides with the sliding plane 30 a of the swash plate 30, and the sliding surface 26 c of the shoe pocket 26 b is a spherical sliding contact surface of the shoe 32 inside the shoe pocket 26 b. It will be in sliding contact with 32a.
  • the valve plate 12 has a suction hole 34 and a discharge hole 35 corresponding to each cylinder bore 25. Further, the rear head 13 is provided with a suction chamber 36 for storing the refrigerant to be supplied to the compression chamber, and a discharge chamber 37 for storing the refrigerant discharged from the compression chamber.
  • the suction chamber 36 is formed in the central portion of the rear head 13, communicates with a suction port (not shown) that communicates with the outlet side of the evaporator 5, and can communicate with the compression chamber via the suction hole 34 of the valve plate 12. ing.
  • the discharge chamber 37 is continuously formed around the suction chamber 36, communicates with a discharge port (not shown) leading to the inlet side of the condenser 3, and is compressed through the discharge hole 35 of the valve plate 12.
  • the suction hole 34 is opened and closed by a suction valve 39 provided on the front side end face of the valve plate 12, and the discharge hole 35 is opened and closed by a discharge valve 40 provided on the rear side end face of the valve plate 12. It has become.
  • the suction chamber 36 communicates with the gap 46 via a through hole 42 and a control valve 43 provided in the valve plate 12.
  • the discharge capacity of the compressor 1 is determined by the stroke of the piston 26, and this stroke is the pressure applied to the front surface of the piston 26, that is, the pressure in the compression chamber (pressure in the cylinder bore 25) and the pressure applied to the back surface of the piston 26. That is, it is determined by the differential pressure from the pressure in the crank chamber 16 (crank chamber pressure Pc). Specifically, if the pressure in the crank chamber 16 is increased, the differential pressure between the compression chamber and the crank chamber 16 is reduced, so that the inclination angle (swinging angle) of the swash plate 30 is reduced. 26, the discharge capacity is reduced, and conversely, if the pressure in the crank chamber 16 is reduced, the differential pressure between the compression chamber and the crank chamber 16 is increased. The angle) increases, and the stroke of the piston 26 increases and the discharge capacity increases.
  • an air supply passage 41 that is formed across the cylinder block 11, the valve plate 12, and the rear head 13 and that connects the discharge chamber 37 and the crank chamber 16 is formed.
  • a control valve 43 is arranged in the air supply passage 41.
  • an in-shaft passage 50 that constitutes a part of the refrigerant path is provided along the axis of the drive shaft 17.
  • An opening 53 is provided on one end side (right side in FIG. 1) of the in-shaft passage 50 so as to communicate with the gap 46.
  • the drive shaft 17 communicates with the in-shaft passage 50 from the side wall of the drive shaft 17 in the vicinity of the contact portion between the thrust bearing 52 and the drive shaft 17 in the vicinity of the contact portion between the thrust bearing 52 and the drive shaft 17.
  • An in-shaft through hole 51b is provided.
  • the refrigerant in the crank chamber 16 flows through the gap between the thrust shaft 28 that supports the thrust flange 27 and the inner wall of the crank chamber 16, and further flows into the gap of the radial bearing 22.
  • the refrigerant flows into the in-shaft passage 50 through the in-shaft through hole 51a. Further, the refrigerant flows from the crank chamber 16 to the in-shaft passage 50 through the in-shaft through hole 51b. Thus, the refrigerant flowing into the in-shaft passage 50 is blown out from the opening 53 into the gap 46. Then, the refrigerant passes through a through hole 42 provided in the valve plate 12 and is sent to the suction chamber 36 via the control valve 43. In this way, an extraction passage that communicates the crank chamber 16 and the suction chamber 36 is formed.
  • the refrigerant path formed by the in-shaft passage 50, the gap 46, and the through hole 42 constitutes a part of the refrigerant path that connects the crank chamber 16 and the suction chamber 36 via a control valve 43 that controls the flow rate of the refrigerant.
  • Will be. 1 indicates the flow direction of the refrigerant (oil) (the same applies to other drawings).
  • control valve 43 is provided on both the air supply passage 41 and the extraction passage as described above.
  • the control valve 43 is mounted in a control valve mounting hole 45 formed in the rear head 13 and adjusts the opening of the air supply passage 41 and the opening of the extraction passage to thereby adjust the pressure of the crank chamber 16 (crank chamber pressure Pc).
  • an actuator such as an electromagnetic solenoid, and the opening of the air supply passage is controlled by adjusting the amount of current supplied to the solenoid.
  • the spool valve has a small hole diameter, so it does not admit foreign matter such as abrasion powder or dust.
  • the fixed orifice has a small hole diameter to increase the refrigerant pressure. This is because it also dislikes the mixing of foreign substances.
  • the gap 46 is preferably a cylindrical space
  • the filter 60 is preferably a bowl-shaped filter that can be accommodated in the cylindrical space.
  • the shoe 32 is, for example, a typical SUJ2 material (high-carbon chromium bearing steels) is bearing steel, the SUJ2 material having an alumina ceramic (Al 2 O 3) may be a base material.
  • the piston 26 including the shoe pocket 26b is made of aluminum or aluminum alloy as a base material.
  • the aluminum alloy for example, an Al—Si alloy, an Al—Si—Cu alloy, or the like can be used.
  • FIG. 2 is a partially enlarged view of FIG. 1 and shows a sliding contact state of the shoe 32 and the shoe pocket 26b.
  • the swash plate compressor 1 according to the present invention includes a protective layer in which a solid lubricant is dispersed in a thermosetting resin as a base material only on a spherical sliding surface 32a of a shoe 32. 71 is formed.
  • the protective layer 71 By forming the protective layer 71 only on the spherical sliding surface 32 a of the shoe 32, wear at the sliding contact portion between the shoe pocket 26 b and the shoe 32 can be suppressed, and the shoe 32 and the shoe pocket 26 b of the piston 26 can be suppressed. Burning in between can be prevented.
  • the protective layer 71 is formed only on the spherical sliding surface 32a of the shoe 32, and is not formed on the planar sliding surface 32b of the shoe in contact with the sliding plane 30a of the swash plate 30.
  • the protective layer 71 is formed on the flat sliding surface 32 b of the shoe 32, the protective layer 71 of the flat sliding surface 32 b of the shoe is not formed on the sliding plane 30 a of the swash plate 30.
  • the illustrated solid lubricating coating (MoS 2 is the main component of lubrication) may be damaged, and such surfaces may be seized.
  • the protective layer 71 is obtained by dispersing a solid lubricant in a thermosetting resin as a base material (matrix).
  • a thermosetting resin as a base material examples include polyamideimide (PAI) and epoxy. Resin, phenol resin, urea resin, unsaturated polyester, and the like can be used, but it is desirable to use polyamideimide (PAI).
  • a material having a layered structure or a Lamella structure can be used as the solid lubricant.
  • MoS 2 molybdenum disulfide
  • PTFE polytetrafluoroethylene
  • a base layer 72 is formed between the spherical sliding surface 32 a of the shoe 32 and the protective layer 71.
  • the base layer 72 By forming the base layer 72 between the spherical sliding surface 32 a and the protective layer 71, it is possible to prevent direct contact between the spherical sliding surface 32 a and the protective layer 71, and at the time of forming the base layer 72.
  • the sliding surface 32a By making the sliding surface 32a rough, the adhesion of the protective layer 71 can be improved, and the effect of forming the protective layer 71 can be maintained for a long time.
  • the underlayer 72 is formed of a phosphate, preferably a metal phosphate, and can be formed of, for example, manganese phosphate, zinc phosphate, zinc calcium phosphate, iron phosphate, etc. It is desirable to form with zinc phosphate.
  • FIG. 3 is a diagram showing another embodiment of FIG. 2 and showing an embodiment in which the underlayer 72 is not formed.
  • the adhesion of the protective layer 71 is slightly lower than that of the base layer 72 and may be easily worn. The effect produced by can be maintained.
  • the base layer 72 when the base layer 72 is not formed, it is slightly more easily worn than when the base layer 72 is formed, but the wear powder generated by the wear is generated in the shoe pocket 26b and the shoe 32. As a result, the sliding characteristics are improved.
  • the thickness of the layers (the protective layer 71 and the base layer 72 in FIG. 2 and the protective layer 71 in FIG. 3) formed on the spherical sliding surface 32a of the shoe 32 is not particularly limited. However, it is preferably 1.0 ⁇ m or more, more preferably 1.0 to 5.0 ⁇ m, and particularly preferably 1.0 to 3.0 ⁇ m. If the thickness of the layer is less than 1.0 ⁇ m, it may be lost due to wear and the effects of the present invention may not be achieved. On the other hand, when the thickness of such a layer exceeds 5.0 ⁇ m, there arises a problem in strength such that the protective layer 71 and the base layer 72 are easily peeled off, and the clearance (gap between the protective layers 71 is peeled off). ) May cause looseness between the shoe pocket 26b and the shoe 32 in some cases.
  • the total thickness of the protective layer 71 and the base layer 72 is 1. It is preferably 0 to 5.0 ⁇ m, particularly preferably 1.0 to 3.0 ⁇ m.
  • the thickness of the protective layer 71 is 1.0 to 5.0 ⁇ m. It is preferable that the thickness is 1.0 to 3.0 ⁇ m.
  • the means for forming the protective layer 71 in which the solid lubricant is dispersed in the thermosetting resin on the spherical sliding surface 32a of the shoe 32 is not particularly limited, but will be described later when the base layer 72 is present.
  • a treatment liquid in which a solid lubricant is dispersed in a thermosetting resin is applied by a known application means such as a tumbling method, spray coating, dip coating, or brush coating, and heated.
  • the base material can be formed by curing a thermosetting resin.
  • the underlayer 72 for example, when manganese phosphate is used, it can be formed by manganese phosphate treatment (so-called parkerizing). It can be formed by dip-coating in a manganese phosphate treatment solution held at (about 80 to 100 ° C.) and drying. The manganese phosphate treatment solution maintained at a predetermined temperature may be applied by spray application to the shoe 32.
  • the zinc phosphate underlayer 72 when the zinc phosphate underlayer 72 is formed, it can be formed by zinc phosphate treatment, and after degreasing the surface, the shoe 32 is placed in a zinc phosphate treatment solution maintained at a predetermined temperature (about 80 to 100 ° C.). It can be formed by dip coating and drying. In addition, you may make it apply
  • a predetermined temperature about 80 to 100 ° C.
  • the swash plate compressor 1 has the protective layer in which the solid lubricant is dispersed on the spherical sliding surface 32 a in contact with the sliding surface 26 c of the shoe pocket 26 b in the shoe 32. 71 is formed, it is possible to suppress wear at the sliding contact portion between the shoe pocket 26b and the shoe 32 even during operation when lubrication is insufficient, such as after being left for a long period of time, and the shoe pocket 26b between the shoe 32 and the piston 26. Burn-in between the two can be prevented.
  • the protective layer 71 is not formed on the flat sliding surface 32b in contact with the sliding plane 30a of the swash plate 30 in the shoe 32, the protective layer 71 of the planar sliding surface 32b of the shoe 32 is formed by the swash plate.
  • the 30 sliding planes 30a are not damaged.
  • the swash plate type compressor 1 of this invention of such a structure can be used for the variable capacity type compressor or the fixed capacity type compressor which comprises the refrigerating cycle of the air conditioner used for a motor vehicle etc., for example. It can also be used in a swash plate type compressor using carbon dioxide or the like as a refrigerant.
  • the solid lubricant is dispersed in the thermosetting resin as the base material on the spherical sliding surface 32 a of the shoe 32.
  • a protective layer 71 is formed, and a ground layer 72 is formed between the spherical sliding surface 32a and the protective layer 71 of the shoe 32, and nothing is present on the planar sliding surface 32b.
  • the underlayer 72 is formed by means such as dip coating in the treatment liquid. According to such means, the sliding surface of the shoe including the planar sliding surface 32b. In some cases, a base layer is formed on the entire surface.
  • the base layer 71 formed on the planar sliding surface 32b is peeled off, or the spherical sliding surface is formed.
  • the base layer 72 is formed on the planar sliding surface 32b.
  • FIG. 4 is a view showing another embodiment of the swash plate compressor 1 according to the present invention, and is provided between the spherical sliding surface 32a of the shoe 32 and the protective layer 71 and a planar sliding surface. It is the figure which showed the aspect which formed the base layer 72 on 32b.
  • Example 1 In the swash plate compressor having the configuration shown in FIG. 1, the spherical sliding surface of the shoe in the swash plate compressor has the layer configuration shown in FIG. 4, and the thickness of each layer is set as follows.
  • a plate type compressor was obtained (as shown in FIG. 4, an underlayer was formed on the spherical sliding surface of the shoe and the planar sliding surface of the shoe).
  • the underlayer was formed by manganese phosphate treatment, and was formed by degreasing the shoe and then immersing it in a manganese phosphate solution.
  • MoS 2 molybdenum disulfide
  • PAI polyamideimide
  • the shoe is made of SUJ2
  • the piston including the shoe pocket is made of an aluminum alloy.
  • the total thickness of the protective layer and the underlayer is 2.5 ⁇ m.
  • Example 2 In Example 1, the spherical sliding surface of the shoe in the swash plate compressor has the layer configuration shown in FIG. 3 (as shown in FIG. 3, nothing is formed on the flat sliding surface of the shoe. ), Except that the thickness of the protective layer was 2.5 ⁇ m, the swash plate type compressor of the present invention was obtained with the same configuration as in Example 1.
  • Example 3 In Example 2, in addition to molybdenum disulfide (MoS 2 ) and graphite used in Example 1 and Example 2 as solid lubricants, a protective layer using a treatment liquid in which polytetrafluoroethylene (PTFE) is dispersed is used. And having the same structure as that of Example 2 except that the thickness of the protective layer formed by dispersing molybdenum disulfide, graphite, and polytetrafluoroethylene in the polyamideimide is 4.5 ⁇ m. A swash plate compressor was obtained.
  • MoS 2 molybdenum disulfide
  • PTFE polytetrafluoroethylene
  • Example 1 In Example 1, except that the protective layer and the base layer were formed not only on the spherical sliding surface but also on the flat sliding surface (the protective layer and the base layer were formed on the entire sliding surface of the shoe). A swash plate compressor was obtained as the same configuration as in Example 1.
  • the swash plate compressor has the same configuration as that of the first embodiment except that no protective layer or the like is formed on the sliding surface and the sliding surface of the shoe pocket appears on the surface.
  • Examples 2 and 3 and Comparative Example 2 are the best, and there is almost no scratch on the sliding plane of the swash plate. It can be said that there is no attack on the swash plate. In Example 1, there were few scratches on the sliding plane of the swash plate, and the aggressiveness to the swash plate was low. On the other hand, in the case of Comparative Example 1, a considerable scratch was seen on the sliding plane of the swash plate, and under the test conditions of this time, the part did not lock (burn), but it is estimated that it will burn.
  • Examples 1 and 3 are better than Comparative Examples 1 and 2 regarding the seizure between the shoe and the shoe pocket of the piston, and the protective layer of the flat sliding surface of the shoe is the sliding plane of the swash plate. Can be said to be low or absent.
  • Example 2 is inferior to Comparative Example 1 in terms of seizure between the shoe and the shoe pocket of the piston, but is better than Comparative Example 2, and the protective layer on the flat sliding surface of the shoe is a swash plate slide. Since it can be said that there is no damage to the moving plane (aggression against the swash plate), the overall judgment was a practical lower limit.
  • Example 4 to 6 In Examples 1, 2, and 3, zinc phosphate treatment was used instead of manganese phosphate treatment. These are referred to as Examples 4, 5 and 6, respectively. In Examples 4, 5, and 6 as the zinc phosphate underlayer, good results similar to those in Examples 1, 2, and 3 were obtained.
  • the swash plate compressor of the present invention can be used, for example, as a vehicle air conditioner in the automobile industry.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

La présente invention se rapporte à un compresseur à plateau oscillant configuré d'une manière telle que le coefficient de frottement entre les pistons et les patins, lorsque la lubrification est insuffisante après que le compresseur n'a pas été utilisé pendant une longue période, est réduit pour empêcher le grippage pendant le fonctionnement et pour réduire au minimum l'endommagement des surfaces plates de coulissement du plateau oscillant. Un compresseur à plateau oscillant est configuré d'une manière telle qu'un patin (32) comporte : des surfaces de coulissement plates (32b) en contact avec les surfaces plates de coulissement (30a) du plateau oscillant (30) ; et des surfaces de coulissement sphériques (32a) formées dans des positions sur les bords opposés des surfaces de coulissement plates et en contact avec les surfaces de coulissement (26c) de poches de patin (26b). Seules les surfaces de coulissement sphériques comportent, formées sur elles, des couches de protection (71) formées par la dispersion d'un agent de lubrification solide dans une résine thermodurcissable qui sert de matériau de base.
PCT/JP2010/066318 2009-10-06 2010-09-21 Compresseur à plateau oscillant WO2011043185A1 (fr)

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JP2009232629 2009-10-06
JP2009-232629 2009-10-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014522362A (ja) * 2011-04-27 2014-09-04 クライマックス・エンジニアード・マテリアルズ・エルエルシー 球状二硫化モリブデン粉末、二硫化モリブデンコーティング、およびその生産方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000257555A (ja) * 1999-03-08 2000-09-19 Toyota Autom Loom Works Ltd 圧縮機
JP2005030376A (ja) * 2003-06-19 2005-02-03 Toyota Industries Corp 圧縮機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000257555A (ja) * 1999-03-08 2000-09-19 Toyota Autom Loom Works Ltd 圧縮機
JP2005030376A (ja) * 2003-06-19 2005-02-03 Toyota Industries Corp 圧縮機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014522362A (ja) * 2011-04-27 2014-09-04 クライマックス・エンジニアード・マテリアルズ・エルエルシー 球状二硫化モリブデン粉末、二硫化モリブデンコーティング、およびその生産方法

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