EP1188923B1 - Revêtement d'un plateau-came d'un compresseur - Google Patents

Revêtement d'un plateau-came d'un compresseur Download PDF

Info

Publication number
EP1188923B1
EP1188923B1 EP01122238A EP01122238A EP1188923B1 EP 1188923 B1 EP1188923 B1 EP 1188923B1 EP 01122238 A EP01122238 A EP 01122238A EP 01122238 A EP01122238 A EP 01122238A EP 1188923 B1 EP1188923 B1 EP 1188923B1
Authority
EP
European Patent Office
Prior art keywords
swash plate
chamfered portion
coating
flat surface
substantially flat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01122238A
Other languages
German (de)
English (en)
Other versions
EP1188923A3 (fr
EP1188923A2 (fr
Inventor
Tetsuhiko Fukanuma
Hiroaki Kayukawa
Masahiro Kawaguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP1188923A2 publication Critical patent/EP1188923A2/fr
Publication of EP1188923A3 publication Critical patent/EP1188923A3/fr
Application granted granted Critical
Publication of EP1188923B1 publication Critical patent/EP1188923B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/14—Self lubricating materials; Solid lubricants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/20—Resin

Definitions

  • the present invention relates to a swash plate type compressor. More particularly, the present invention relates to a swash plate type compressor that has a swash plate, on which coatings are formed, and pairs of shoes. Each shoe is located between the swash plate and one of the pistons. The coatings are applied to the area of the swash plate that contacts the shoes. Each shoe has a substantially flat surface and a semi-spherical portion. Each substantially flat surface contacts the swash plate, which integrally rotates with a rotary shaft. Each semi-spherical portion is fitted to one of two concave recesses of the corresponding piston. The rotational force of the swash plate is transmitted to the pistons through the shoes to drive the pistons.
  • Japanese Examined Patent Publication No. 61-1636 and Japanese Unexamined Patent Publication No. 11-193780 disclose a swash plate type compressor that has pistons, which reciprocate in accordance with the rotation of a swash plate that integrally rotates with a rotary shaft.
  • a shoe is provided between the front peripheral portion of the swash plate and each piston and between the rear peripheral portion of the swash plate and each piston. The shoes transmit force from the swash plate to the pistons. The shoes slide along the rotating swash plate. Thus, the shoes, which are made of iron-based material, may wear out or seize. Therefore, it is necessary to improve the sliding performance of the swash plate with respect to the shoes.
  • Another prior art document is EP 0 838 590 A, which discloses a swash plate type compressor according to the preamble of claim 1.
  • each hemispheric shoe is arched outward.
  • the radius of curvature of the arched portions is very large.
  • a first chamfered portion and a second chamfered portion are formed near the periphery of each arched surface.
  • the inclination angle of the second chamfered portion which is radially inward of the first chamfered portion, is smaller than the inclination angle of the first chamfered portion.
  • the first and second chamfered portions draw lubricant from the peripheral portion of the swash plate, which enters between each shoe and the swash plate. This improves the sliding performance of the swash plate with respect to the shoes.
  • coating which has high sliding performance, is applied to the swash plate to further improve the sliding performance of the swash plate with respect to the shoes.
  • the coating is applied to the front and rear peripheral portions of the swash plate, which contact the shoes.
  • a filter is provided in a passage for refrigerant gas.
  • the filter is provided for filtering foreign particles such as grinding chips of parts or wear particles in the compressor and an external refrigerant circuit.
  • the filter only catches foreign particles that are more than certain size to avoid clogging of the filter.
  • the foreign particles that pass through the filter may be caught between the swash plate and the shoes. Therefore, in the compressor that has the coated swash plate, the coating may be damaged depending on the size of foreign particles caught between the swash plate and the shoes. When the coating is damaged, the sliding performance of the coating decreases.
  • the objective of the present invention is to prevent foreign particles from adversely affecting or decreasing the effectiveness of a coating.
  • the present invention provides a swash plate type compressor that has at least a pair of shoes between a swash plate and a piston. Motion of the swash plate is transmitted to the piston through the shoes. The piston reciprocates according to the transmitted motion. A coating is applied to each of two surfaces of the swash plate to contact the shoes, respectively. The surface of each coating is flat.
  • Each shoe includes a substantially flat surface and a semi-spherical portion. Each substantially flat surface contacts the swash plate. Each semi-spherical portion is fitted to the piston.
  • the substantially flat surface of each shoe includes a main chamfered portion. The main chamfered portion is provided near the periphery of the substantially flat surface.
  • the inclination angle ⁇ 1 of each main chamfered portion with respect to the corresponding coating is a predetermined angle or less.
  • Each coating contacts one of the substantially flat surfaces.
  • the maximum distance ⁇ between each main chamfered portion and the corresponding coating is equal to or less than the thickness D of the corresponding coating.
  • Fig. 1 (a) illustrates the internal structure of a swash plate type variable displacement compressor.
  • a rotary shaft 13 is supported by a front housing 12, which defines a control pressure chamber 121, and a cylinder block 11.
  • the rotary shaft 13 is driven by an external drive source such as an engine of a vehicle.
  • a rotor 14 is secured to the rotary shaft 13.
  • a swash plate 15 is pivotally supported by the rotary shaft 13 to slide in the axial direction.
  • a support body 151 is integrally molded with the swash plate 15 and is made of iron-based material.
  • a pair of guide pins 16 (only one guide pin is shown in Fig. 1) are secured to the support body 151.
  • Each guide pin 16 is slidably fitted in a corresponding guide hole 141, which is formed in the rotor 14.
  • the guide holes 141 and the guide pins 16 cooperate with each other. This permits the swash plate 15 to tilt with respect to the axis of the rotary shaft 13 and to rotate integrally with the rotary shaft 13. The tilting motion of the swash plate 15 is guided by the guide holes 141, the guide pins 16, and the rotary shaft 13.
  • the inclination angle of the swash plate 15 is changed by controlling the pressure in the control pressure chamber 121.
  • the pressure in the control pressure chamber 121 increases, the inclination angle of the swash plate 15 decreases.
  • the pressure in the control pressure chamber 121 decreases, the inclination angle of the swash plate 15 increases.
  • Refrigerant in the control pressure chamber 121 flows to a suction chamber 191 in a rear housing 19 through a pressure release passage, which is not shown in the figures.
  • Refrigerant in a discharge chamber 192 in the rear housing 19 is supplied to the control pressure chamber 121 through a pressure supply passage, which is not shown in the figures.
  • a displacement control valve 25 is provided on the pressure supply passage.
  • the displacement control valve 25 controls the flow rate of refrigerant supplied to the control pressure chamber 121 from the discharge chamber 192.
  • the pressure in the control pressure chamber 121 increases.
  • the displacement control valve 25 controls the inclination of the swash plate 15.
  • the swash plate 15 When the swash plate 15 contacts the rotor 14, the swash plate 15 is at the maximum inclination angle. When a snap ring 24 on the rotary shaft 13 contacts the swash plate 15, the swash plate 15 is at the minimum inclination angle.
  • Cylinder bores 111 are located around the rotary shaft 13 in the cylinder block 11 (only two cylinder bores are shown in Fig. 1 (a)).
  • a piston 17 is accommodated in each cylinder bore 111.
  • a holder 171 is formed in each piston 17 and a pair of concave recesses 172, 173 are formed in the holder 171.
  • the rear concave recess 172 is coupled to a rear hemispheric shoe 18A and the front concave recess 173 is coupled to a front hemispheric shoe 18B.
  • the hemispheric shoes 18A, 18B cannot be removed from the respective concave recesses 172, 173.
  • Each shoe 18A, 18B is made of iron-based material.
  • each piston 17 reciprocates in the corresponding cylinder bore 111.
  • the rear shoe 18A slides along the contact surface 30 of the swash plate 15.
  • the front shoe 18B slides along the opposite contact surface 31 of the swash plate 15.
  • refrigerant in the suction chamber 191 flows into the associated cylinder bore 111 from the corresponding suction port 201 in a first valve plate 20 and causes a corresponding suction valve 211 on a second valve plate 21 to open.
  • refrigerant in the associated cylinder bore 111 is then discharged from a corresponding discharge port 202 on the first valve plate 20 to the discharge chamber 192 and causes a corresponding discharge valve 221 on a third valve plate 22 to open.
  • Retainers 231 are formed on a fourth valve plate 23 to limit the opening degree of the discharge valves 221.
  • the discharge chamber 192 and the suction chamber 191 are connected by an external refrigerant circuit 26.
  • Refrigerant in the discharge chamber 192 flows to the suction chamber 191 through the external refrigerant circuit 26, which includes a condenser 27, an expansion valve 28, an evaporator 29.
  • coatings 32, 33 are formed on a rear peripheral portion 152 and a front peripheral portion 153 of the swash plate 15, respectively.
  • the rear peripheral portion 152 and the front peripheral portion 153 are contact areas.
  • Each coating 32, 33 has two layers.
  • the two layers include metal layers 321, 331, which are respectively formed on the rear peripheral portion 152 and the front peripheral portion 153, and resin layers 322, 332, which are respectively formed on the metal layers 321, 331.
  • the surfaces of the resin layers 322, 332 are contact surfaces 30, 31 that contact the shoes 18A, 18B, respectively.
  • the metal layers 321, 331 are respectively formed on the peripheral portions 152, 153.
  • the metal layers 321, 331 are formed of aluminum-based material, which is mainly made of aluminum that contains silicon.
  • the metal layers 321, 331 may be formed of copper-based material.
  • Each resin layer 322, 332 is formed on the corresponding metal layer 321, 331.
  • Each resin layer 322, 332 is formed of resin material such as polyamideimide, in which solid lubricant, such as molybdenum disulfide and graphite, is dispersed.
  • each coating 32, 33 is made of much softer material than the material of the swash plate 15.
  • the thickness of each metal layer 321, 331 is approximately 60 to 70 ⁇ m.
  • the thickness of each resin layer 322, 332 is approximately 10 to 20 ⁇ m. Therefore, the total thickness D of each coating 32, 33 is approximately 70 to 90 ⁇ m.
  • each shoe 18A, 18B has a substantially flat surface 34 and a semi-spherical portion 35.
  • the substantially flat surface 34 contacts the swash plate 15.
  • the semi-spherical portion 35 is fitted to the corresponding concave recess 172, 173 of the associated piston 17.
  • Each substantially flat surface 34 includes an arched surface 341 and a main chamfered portion 342.
  • the radius of curvature of the arched surface 341 is very large.
  • An annular main chamfered portion 342 is formed on the periphery of the substantially flat surface 34 such that the main chamfered portion 342 and the arched surface 341 are smoothly joined to each other.
  • An annular sub-chamfered portion 36 is formed around the main chamfered portion 342 such that the sub-chamfered portion 36 and the main chamfered portion 342 are smoothly joined to each other.
  • the distance between each main chamfered portion 342 and the corresponding coating 32, 33 gradually increases from the center of the corresponding substantially flat surface 34 in a radially outward direction.
  • Each substantially flat surface 34 is an arched surface, the vertex P of which is at the center of the corresponding substantially flat surface 34.
  • Fig. 3 illustrates a diagrammatic profile of one of the shoes.
  • the profile of the substantially flat surface 34 and the sub-chamfered portions 36 are enlarged in the direction perpendicular to the substantially flat surface 34 for the purpose of illustration.
  • Point P represents the center of the substantially flat surface 34.
  • Line H represents a flat surface that contacts the center P of the substantially flat surface 34.
  • the average of first inclination angles ⁇ 1 of the main chamfered portions 342 of the shoes with respect to the corresponding flat surface H is approximately 2 to 7 degrees.
  • the average of second inclination angles ⁇ 2 of the sub-chamfered portions 36 of the shoes with respect to the corresponding flat surface H is approximately 40 degrees.
  • the inclination angles ⁇ 1, ⁇ 2 represent the inclinations of line segments, that radially follow the main chamfered portion 342 and the sub-chamfered portion 36, respectively, with respect to the flat surface H.
  • the maximum distance ⁇ between the flat surface H and the arched surface 341 is approximately 2 to 7 ⁇ m.
  • the maximum distance ⁇ between the flat surface H and the main chamfered portion 342 is approximately 10 ⁇ m.
  • the maximum distance ⁇ between the flat surface H and the sub-chamfered portion 36 is greater than the thickness D of each coating 32, 33.
  • lubricant on the contact surfaces 30, 31 of the swash plate 15 is drawn into the spaces between the sub-chamfered portions 36 and the contact surfaces 30, 31.
  • the lubricant is further drawn into the spaces between the main chamfered portions 342 and the contact surfaces 30, 31 and into the spaces between the arched surfaces 341 and the contact surfaces 30, 31.
  • the first embodiment provides the following advantages.
  • the average of the first inclination angles ⁇ 1 of the main chamfered portions 342 with respect to the corresponding flat surface H is approximately 2 to 7 degrees.
  • Each flat surface H contacts the center P of the corresponding substantially flat surface 34.
  • the maximum distance ⁇ between each main chamfered portion 342 and the corresponding contact surface 30, 31, however, is approximately 10 ⁇ m.
  • a foreign particle that is larger in diameter than the thickness D (approx. 70 to 90 ⁇ m) of each coating 32, 33 cannot enter the space between the main chamfered portions 342 and the corresponding contact surface 30, 31.
  • foreign particles that are larger in diameter than the thickness D of each coating 32, 33 can enter the space between each sub-chamfered portion 36 and the corresponding contact surface 30, 31.
  • the average of the inclination angles ⁇ 2 of the sub-chamfered portions 36 with respect to the corresponding flat surface H is approximately 40 degrees.
  • foreign particles do not get caught in the space between each sub-chamfered portion 36 and the corresponding contact surfaces 30, 31.
  • the average of the second inclination angles ⁇ 2 of the sub-chamfered portions 36 is approximately 40 degrees in the first embodiment. However, if each second inclination angle ⁇ 2 is more than 20 degrees, a foreign particle that is larger in diameter than the thickness of the coating D may enter between one of the contact surfaces 30, 31 and the corresponding sub-chamfered portion 36. However, the foreign particle does not get caught in the space between the sub-chamfered portion 36 and the corresponding contact surface 30, 31. That is, there is little possibility that the coatings 32, 33 will be damaged when a foreign particle that is larger in diameter than the thickness of the coating D enters the space between one of the sub-chamfered portions 36 and the corresponding contact surface 30, 31.
  • the second inclination angle ⁇ 2 of the sub-chamfered portions 36 is more than 20 degrees.
  • the maximum distance ⁇ of the main chamfered portions 342 and the corresponding contact surfaces 30, 31 must be less than the thickness D of the coating 32, 33. This prevents the foreign particles from damaging the coatings 32, 33.
  • the swash plate 15 is made of iron-based material, and the metal layers 321, 331, which form coatings 32, 33, are made of aluminum-based material.
  • the aluminum-based material is suitable for preventing seizure between the swash plate 15 and the shoes 18A, 18B.
  • the sub-chamfered portions 36 eliminate sharp edges on the shoes 18A, 18B that contact the swash plate 15.
  • An arched surface 341 and a main chamfered portion 342C of each shoe 18C are smoothly joined to each other.
  • the main chamfered portion 342C and a sub-chamfered portion 36C are smoothly joined to each other.
  • the average of first inclination angles ⁇ 1 of the main chamfered portions 342C of the shoes 18C with respect to a corresponding flat surface H is approximately 10 degrees.
  • the average of second inclination angles ⁇ 2 of the sub-chamfered portions 36C with respect to the corresponding flat surface H is the same as that of the first embodiment.
  • the maximum distance ⁇ between each main chamfered portion 342C and the corresponding flat surface H is approximately 70 to 80 ⁇ m.
  • the thickness D of the coatings 32, 33 is the same as in the first embodiment.
  • the second embodiment provides the same advantages as in the first embodiment.
  • a third embodiment is shown in Fig. 5. Like or the same reference numerals are given to those components that are like or the same as the corresponding components of the first embodiment.
  • An arched surface 341 and a main chamfered portion 342D of each shoe 18D are smoothly joined to each other.
  • the main chamfered portion 342D and a sub-chamfered portion 36D are smoothly joined to each other.
  • the average of first inclination angles ⁇ 1 of the main chamfered portions 342D of the shoes 18D with respect to a corresponding flat surface H is approximately 10 degrees.
  • the average of second inclination angles ⁇ 2 of the sub-chamfered portions 36D with respect to the corresponding flat surface H is approximately 60 degrees.
  • the maximum distance ⁇ between each main chamfered portion 342D and the corresponding flat surface H is approximately 70 to 80 ⁇ m.
  • the thickness D of the coatings 32, 33 is the same as in the first embodiment.
  • the third embodiment also provides the same advantages as in the first embodiment.
  • a fourth embodiment is shown in Fig. 6. Like or the same reference numerals are given to those components that are like or the same as the corresponding components of the first embodiment.
  • An arched surface 341 and a main chamfered portion 342E of each shoe 18E are smoothly joined to each other.
  • the main chamfered portion 342E and a sub-chamfered portion 36E are smoothly joined to each other.
  • the main chamfered portion 342E is formed of an outwardly arched chamfered portion 342E1 and a surrounding, inwardly arched chamfered portion 342E2.
  • the chamfered portions 342E1 and 342E2 are smoothly joined to each other.
  • the average of first inclination angles ⁇ 1 of the main chamfered portions 342E of the shoes 18E with respect to a corresponding flat surface H is approximately 10 degrees.
  • the average of second inclination angles ⁇ 2 of the sub-chamfered portions 36E with respect to the corresponding flat surface H is approximately 40 degrees.
  • the maximum distance ⁇ between each main chamfered portion 342E and the corresponding flat surface H is approximately 70 to 80 ⁇ m.
  • the thickness D of the coatings 32, 33 is the same as in the first embodiment.
  • the fourth embodiment provides the same advantages as the first embodiment.
  • the present invention includes further embodiments as follows.
  • a swash plate type compressor that has a pair of shoes (18A, 18B, 18C, 18D, 18E) between a swash plate (15) and a piston (17).
  • the motion of the swash plate is transmitted to the piston through the shoes.
  • Each piston reciprocates according to the transmitted motion.
  • a coating (32, 33) is applied to each surface of the swash plate to contact the corresponding shoe.
  • the surface (H) of each coating (32, 33) is flat.
  • Each shoe (18A to 18E) includes a substantially flat surface (34), which contacts the swash plate (15), and a semi-spherical portion (35), which is fitted to the piston (17).
  • Each substantially flat surface (34) includes a main chamfered portion (342) near the periphery.
  • the inclination angle ( ⁇ 1) of each main chamfered portion (342) with respect to the corresponding coating is a predetermined angle or less.
  • Each coating contacts one of the substantially flat surfaces (34).
  • the maximum distance ( ⁇ ) between each main chamfered portion (342) and the corresponding coating is equal to or less than the thickness (D) of the corresponding coating (32, 33).

Claims (8)

  1. Compresseur du type à plateau oscillant, dans lequel au moins une paire de patins (18A, 18B, 18C, 18C, 18E) est fournie entre un plateau oscillant (15) et un piston (17), dans lequel le mouvement du plateau oscillant est transmis au piston, par l'intermédiaire des patins, et le piston effectue un mouvement de va-et-vient selon le mouvement transmis, un revêtement (32, 33) est appliqué sur chacune de deux surfaces du plateau oscillant afin d'entrer en contact avec les patins, respectivement, et la surface (H) de chaque revêtement (32, 33) est plate, dans lequel chaque patin (18A à 18E) comporte une surface sensiblement plate (34) et une partie hémisphérique (35), et chaque surface sensiblement plate (34) est en contact avec le plateau oscillant (15), et chaque partie hémisphérique est ajustée sur le piston (17), dans lequel la surface sensiblement plate (34) de chaque patin comporte une partie chanfreinée principale (342), et la partie chanfreinée principale (342) est fournie près de la périphérie de la surface sensiblement plate (34), caractérisé en ce que l'angle d'inclinaison (1) de chaque partie chanfreinée principale (342) par rapport au revêtement correspondant est un angle prédéterminé, ou inférieur, dans lequel chaque revêtement est en contact avec l'une des surfaces sensiblement plates (34), et la distance maximale (β) entre chaque partie chanfreinée principale (342) et le revêtement correspondant est égal ou inférieur à l'épaisseur (D) du revêtement correspondant (32, 33).
  2. Compresseur selon la revendication 1, caractérisé en ce que chaque patin comporte une partie sous-chanfreinée (36), qui entoure la partie chanfreinée principale correspondante (342), dans laquelle la partie sous-chanfreinée (36) est réunie à la partie chanfreinée principale correspondante (342), et dans laquelle l'angle d'inclinaison (2) de la partie sous-chanfreinée (36) par rapport au revêtement correspondant est supérieur à l'angle prédéterminé.
  3. Compresseur selon la revendication 1 ou 2, caractérisé en ce que l'angle prédéterminé de l'angle d'inclinaison (1) de la partie chanfreinée principale correspondante (342) est de 20 degrés.
  4. Compresseur selon la revendication 1 ou 2, caractérisé en ce que chaque revêtement (32, 33) est constitué d'une couche de métal (321, 331) et d'une couche de résine (322, 332), dans lequel la couche de résine (322, 332) comporte un lubrifiant solide, et la couche de résine (322, 332) est formée sur la couche de métal (321, 331).
  5. Compresseur selon la revendication 4, caractérisé en ce que le plateau oscillant (15) est composé d'un matériau à base de fer, et les couches de métal (321, 331) sont constituées de matériau à base de cuivre et à base d'aluminium.
  6. Compresseur selon la revendication 1 ou 2, caractérisé en ce que la distance entre chaque partie chanfreinée principale (342) et le revêtement correspondant augmente progressivement à partir du centre de la surface sensiblement plate correspondante, dans une direction vers l'extérieur, radialement.
  7. Compresseur selon la revendication 1 ou 2, caractérisé en ce que chaque surface sensiblement plate (34) est une surface arquée, dont le sommet se trouve au centre de la surface sensiblement plate correspondante.
  8. Compresseur selon la revendication 4, caractérisé en ce que les couches de métal (321, 331) sont composées d'un métal qui est plus mou que le matériau du plateau oscillant.
EP01122238A 2000-09-18 2001-09-17 Revêtement d'un plateau-came d'un compresseur Expired - Lifetime EP1188923B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000281698A JP4292700B2 (ja) 2000-09-18 2000-09-18 斜板式圧縮機
JP2000281698 2000-09-18

Publications (3)

Publication Number Publication Date
EP1188923A2 EP1188923A2 (fr) 2002-03-20
EP1188923A3 EP1188923A3 (fr) 2003-06-18
EP1188923B1 true EP1188923B1 (fr) 2004-06-16

Family

ID=18766315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122238A Expired - Lifetime EP1188923B1 (fr) 2000-09-18 2001-09-17 Revêtement d'un plateau-came d'un compresseur

Country Status (7)

Country Link
US (1) US20020155004A1 (fr)
EP (1) EP1188923B1 (fr)
JP (1) JP4292700B2 (fr)
KR (1) KR100441354B1 (fr)
CN (1) CN1138068C (fr)
BR (1) BR0104725A (fr)
DE (1) DE60103826T2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6230803B2 (ja) 2013-04-10 2017-11-15 Ntn株式会社 斜板式コンプレッサの半球シューおよび斜板式コンプレッサ
JP6867751B2 (ja) 2016-03-31 2021-05-12 大豊工業株式会社 シュー及び当該シューを具備する斜板式コンプレッサー

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4420986A (en) * 1977-11-01 1983-12-20 K. K. Toyoda Jidoshokki Seisakusho Sliding shoe for a rotatable swash-plate type refrigerant gas compressor
US4568252A (en) * 1980-03-07 1986-02-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash-plate type compressor
JPH062704B2 (ja) 1984-06-13 1994-01-12 帝人株式会社 ４−置換−５−アルキリデン−２−シクロペンテノン類およびその製法
JP3329006B2 (ja) 1993-03-31 2002-09-30 株式会社豊田自動織機 可変容量型圧縮機用制御弁
DE69630689T2 (de) * 1996-05-08 2004-09-23 Kabushiki Kaisha Toyota Jidoshokki, Kariya Kolbenkompressor
JPH1122640A (ja) * 1997-07-08 1999-01-26 Riken Corp 斜板式圧縮機用シュー
JPH11193780A (ja) 1997-12-26 1999-07-21 Toyota Autom Loom Works Ltd 片頭ピストン型斜板式圧縮機および斜板の製造方法

Also Published As

Publication number Publication date
KR20020021979A (ko) 2002-03-23
JP2002089438A (ja) 2002-03-27
EP1188923A3 (fr) 2003-06-18
US20020155004A1 (en) 2002-10-24
KR100441354B1 (ko) 2004-07-23
DE60103826T2 (de) 2005-07-14
CN1138068C (zh) 2004-02-11
EP1188923A2 (fr) 2002-03-20
JP4292700B2 (ja) 2009-07-08
BR0104725A (pt) 2002-06-04
DE60103826D1 (de) 2004-07-22
CN1344863A (zh) 2002-04-17

Similar Documents

Publication Publication Date Title
US5941161A (en) Piston type compressor
EP0844390B1 (fr) Compresseur à plateau en biais comportant un plateau en matériel très résistant à l'usure
US5483867A (en) Swash plate compressor with sufficiently lubricated shoes
EP1176310A2 (fr) Revêtement de compresseur PEEK
EP0857530A1 (fr) Méthode pour l'usinage d'un piston de compresseur
US6393964B1 (en) Compressor having piston rotation restricting structure with lubricating inclined guide surface
EP1188923B1 (fr) Revêtement d'un plateau-came d'un compresseur
US20020046647A1 (en) Compressors
EP0849470B1 (fr) Compresseur à plateau en biais capable d'assurer une lubrification suffisante entre un piston et un patin de piston disposé à glissement entre le piston et le plateau en biais
US5842406A (en) Piston for compressors including a restrictor to prevent the piston from rotating
US6044751A (en) Variable displacement compressor
WO2001027473A1 (fr) Compresseur frigorifique du type a plateau oscillant
EP0856662A2 (fr) Compresseur à plateau en biais à capacité variable
JP2755193B2 (ja) 圧縮機におけるピストン
US6293761B1 (en) Variable displacement swash plate type compressor having pivot pin
US20020046646A1 (en) Compressors
JPH08254180A (ja) 斜板式圧縮機
JP3292096B2 (ja) 可変容量斜板式圧縮機
EP1087136B1 (fr) Tête de piston de compresseur à plateau en biais avec chanfrein
JP3084976B2 (ja) 片側ピストン式可変容量圧縮機における潤滑構造
EP1092873A2 (fr) Alésages dans le cylindre d'un compresseur à plateau en biais
CA2302098A1 (fr) Compresseur en forme de plateau incline fixe dans lequel la lubrification est toujours assuree en ce qui concerne le joint de piston
EP1211416B1 (fr) Compresseur du type a plateau oscillant
JP3320587B2 (ja) 斜板式コンプレッサ
EP0856663A2 (fr) Compresseur à plateau en biais à capacité variable

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010917

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): DE FR IT

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

REF Corresponds to:

Ref document number: 60103826

Country of ref document: DE

Date of ref document: 20040722

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050317

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050823

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060930

Year of fee payment: 6

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070917

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120912

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60103826

Country of ref document: DE

Effective date: 20140401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140401