EP3060804A1 - Reciprocating compressor having an improved valve and method for assembling the compressor - Google Patents

Reciprocating compressor having an improved valve and method for assembling the compressor

Info

Publication number
EP3060804A1
EP3060804A1 EP14795796.3A EP14795796A EP3060804A1 EP 3060804 A1 EP3060804 A1 EP 3060804A1 EP 14795796 A EP14795796 A EP 14795796A EP 3060804 A1 EP3060804 A1 EP 3060804A1
Authority
EP
European Patent Office
Prior art keywords
spring
discharge
valve
housing
valve plate
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.)
Withdrawn
Application number
EP14795796.3A
Other languages
German (de)
French (fr)
Inventor
Bertrand Carpentier
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.)
Tecumseh Europe Sales and Logistics SAS
Original Assignee
Tecumseh Europe Sales and Logistics SAS
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 Tecumseh Europe Sales and Logistics SAS filed Critical Tecumseh Europe Sales and Logistics SAS
Publication of EP3060804A1 publication Critical patent/EP3060804A1/en
Withdrawn legal-status Critical Current

Links

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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1037—Flap valves
    • F04B53/1047—Flap valves the valve being formed by one or more flexible elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1037—Flap valves
    • F04B53/1047—Flap valves the valve being formed by one or more flexible elements
    • F04B53/105—Flap valves the valve being formed by one or more flexible elements one flexible element oscillating around a fixed point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1037—Flap valves
    • F04B53/1047—Flap valves the valve being formed by one or more flexible elements
    • F04B53/1052—Flap valves the valve being formed by one or more flexible elements two flexible elements oscillating around a fixed point

Definitions

  • the invention relates to an alternative compressor for compressing a fluid, especially a refrigerant.
  • the invention also relates to a method of assembling the compressor.
  • This type of compressor comprises a cylinder and a piston moving in the cylinder to compress the fluid.
  • a valve plate is provided to allow the admission of the fluid to a compression system itself, that is to say in a variable volume formed between the piston and the cylinder.
  • the valve plate is also provided so as to allow the suction and discharge of the compressed fluid through openings in the plate, orifices closed respectively by suction and discharge valves.
  • Valves are usually attached to the valve plate.
  • the suction valve is fixed on one face of the valve plate, face located on the side of the cylinder and the discharge valve is fixed on the other side of the valve plate generally by separate means.
  • the valves are for example formed of spring steel blades coming to open or close the orifices of the valve plate according to the phases of an operating cycle of the compression system.
  • the operating cycle usually involves suction, compression and discharge phases.
  • the assembly elements have several disadvantages, for example:
  • the invention aims to overcome all or part of the problems mentioned above by providing a compressor in which the assembly of the discharge valve is greatly simplified.
  • the subject of the invention is an alternative compressor comprising:
  • a valve plate comprising a first and a second face parallel to each other, the valve plate closing by its first face a variable compression chamber formed between the piston and the cylinder;
  • a yoke disposed on the second face of the valve plate, the yoke comprising a discharge chamber intended to receive the compressed fluid
  • valve plate comprising a discharge orifice passing through the valve plate and putting the compression chamber into communication with the discharge chamber, the discharge valve for opening and closing the discharge orifice, the opening of the valve when the pressure of the fluid in the compression chamber is greater than the pressure of the fluid in the discharge chamber, the valve plate comprising a blind housing having a flat bottom parallel to the faces of the valve plate and opening on the second face, the discharge orifice being formed between the bottom of the housing and the first face,
  • the discharge valve being formed of a blade disposed in the housing and occupying substantially the bottom of the housing, the compressor further comprising a spring bearing between the discharge valve and the cylinder head.
  • the housing and the spring comprise complementary shapes configured so as to maintain the spring bearing against the discharge valve and to maintain the discharge valve bearing against the valve plate in the absence of the cylinder head.
  • the subject of the invention is also a method for assembling a compressor produced according to the invention, characterized in that it consists in following in sequence the following operations:
  • FIG 1 shows in partial section an alternative compressor according to the invention
  • Figure 2 shows a valve plate of the compressor of Figure 1;
  • Figure 3 shows an exploded view of the valve plate, its valves and a cylinder head of the compressor.
  • Figure 1 partially shows an alternative compressor 10 for compressing a fluid.
  • the compressor 10 comprises a cylinder 1 1, a piston 12, a yoke 13 and a valve plate 14.
  • the piston 12 moves in the cylinder 1 1 in a reciprocating translational movement along an axis 15. This movement can be obtained at from a rotary engine.
  • the transformation of movement of the rotation of the motor towards the translation of the piston 12 can be achieved by a crank system not shown in FIG. 1.
  • the valve plate 14 caps the cylinder January 1 to form a compression chamber 16 with the piston 12.
  • the compression chamber 16 has a variable volume.
  • the piston 12 is shown at its top dead center and the volume of the compression chamber 16 is virtually zero.
  • the yoke 13 overhangs the valve plate 14.
  • the cylinder head 13 comprises an intake chamber, not visible in FIG. 1, in which the fluid circulates before compression and a discharge chamber 17 in which the compressed fluid circulates.
  • the valve plate 14 includes orifices for communicating the chambers with the compression chamber.
  • a suction port communicating the inlet chamber with the compression chamber does not appear in the section plane of FIG.
  • Two discharge ports 18 appear in FIG. 1 and make the delivery chamber 17 communicate with the compression chamber 16.
  • the two orifices 18 are given only by way of example.
  • the invention can be implemented with a single orifice or with more than two.
  • the valve plate 14 is flat and has two parallel main faces 19 and 20.
  • the face 19 is in contact with the cylinder 1 1 and the face 20 is in contact with the cylinder head 13.
  • Seals can be placed a part between the yoke 13 and the valve plate 14 and secondly between the valve plate 14 and the cylinder 1 1.
  • the valve plate 14 carries on its face 19 a suction valve 21, visible in Figure 3 and for closing temporarily the suction port and on its face 20 a discharge valve 22 for closing temporarily the l 18. More specifically, the opening and closing of the valves 21 and 22 is made according to the pressure differences between the chambers. These differences pressure depend on the position of the piston 12 in the cylinder 1 1.
  • the valves 21 and 22 extend in a closed position flat on their respective face of the valve plate 14.
  • the valve plate 14 comprises a blind housing 25 having a flat bottom 26 parallel to the faces 19 and 20 and opening on the face 20.
  • the housing 25 is preferably blind except the or the discharge ports 18 which are formed between the bottom 26 of the housing 25 and the face 19.
  • the discharge valve 22 is formed of a blade disposed in the housing 25 and substantially occupies the bottom 26 of the housing 25.
  • the discharge valve 22 does not include any drilling therethrough. It is formed of an elastic blade having a substantially rectangular contour.
  • the compressor 10 further comprises a spring 28 supported between the discharge valve 22 and the cylinder head 13.
  • the spring 28 can bear on the cylinder head 13 and on the discharge valve 22 at the axis 15 or between the two discharge ports 18.
  • the spring 28 then has only two bearing points, one on the cylinder head 13 and one on the discharge valve 22.
  • FIG. 2 represents the valve plate in plan view perpendicular to the axis 15.
  • Figure 3 also illustrates this advantageous form. 3 shows an exploded view the valve plate 14, the valves 21 and 22, the springs 28 associated with each discharge valve 22 and the cylinder head
  • the compressor 10 comprises two discharge valves 22 associated with the same piston 12.
  • the number of discharge valves can vary without departing from the scope of the invention.
  • a spring 28 is associated with each of the discharge valves 22. In FIG. 2, the two springs 28 conceal the valves 22.
  • the springs 28, the valves 22 and the associated discharge orifices 18 are advantageously identical. Subsequently, only one of the jurisdictions will be described.
  • the spring 28 has three bearing points, two on the valve plate 14 and one on the cylinder head 13. More precisely, the spring 28 is formed of a curved blade extending in a main direction 29 between two ends 31 and 32. The spring 28 bears at its two ends 31 and 32 on the discharge valve 22. The spring 28 takes support on the yoke 13 between its two ends 31 and 32 and preferably at mid-distance between its two ends 31 and 32. The discharge orifice or the discharge orifices 18 are located between the two ends 31 and 32 of the spring 28.
  • the discharge valve 22 In operation, when the pressure of the fluid in the compression chamber 16 is less than or equal to the pressure of the fluid in the discharge chamber 17, the discharge valve 22 remains in abutment against the bottom 26 of the housing 25, as shown in FIG. figure 1 .
  • the discharge valve 22 deforms and separates from the bottom 26 of the housing 25 at the openings 18 while remaining in position. bearing on the bottom 26 at the ends 31 and 32.
  • the discharge valve 22 may deform to the point of coming into contact with the spring 28.
  • the housing At the discharge orifices 18, the housing has a width, perpendicular to the main direction 29, greater than that of the valve 22 and the spring 28 so as to allow the passage of the compressed fluid from the orifices 18 to the discharge chamber 17.
  • valve 22 and the spring 28 ni When the compressor 10 is assembled, no element comes to fix the valve 22 and the spring 28 ni to the valve plate 14 or to the cylinder head 13.
  • the valve 22 and the spring 28 associated therewith are simply placed in the housing 25
  • the shape of the housing 25 is sufficient to hold in place the valve 22 and its spring 28.
  • This device can pose a problem during the assembly of the compressor 10. Indeed, the holding in position of the valve 22 and its spring is obtained by gravity before the assembly of the cylinder head 13. This requires maintaining the valve plate 14 so that its face 20 is arranged upwards.
  • the housing 25 and the spring 28 comprise complementary shapes configured to hold the spring 28 in abutment against the valve 22 and to hold the valve 22 in abutment against the valve plate 14 in the absence of the cylinder head 13.
  • the complementary shapes allow for example to maintain the valve 22 and its spring 28 by adhesion in the housing.
  • the spring 28 comprises lugs 33 intended to bear against lateral faces 34 of the housing 25.
  • the lugs 33 extending perpendicular to the main direction 29 and the lateral faces 34 are perpendicular to the main direction 29 and perpendicular at the bottom 26 of housing 25.
  • the assembly of the compressor 10 consists of sequencing the following operations in the following order:
  • the pressure on the spring 28 flattens the spring 28 and tends to move the lugs 33 in the direction 29.
  • the lugs 33 can then slide along the lateral faces 34.
  • the fact of releasing the pressure tends to bring the lugs 33 and to put them in abutment against the lateral faces 34.
  • the tension of the spring 28 allows a lug 33 to exert a force on the lateral face 34 opposite.
  • the force F combined with a coefficient of friction of the lug 33 relative to the lateral face 34 allows the spring 28 to be held in the housing 25.
  • the cylinder head 13 After mounting the valve 22 and its spring 28, the cylinder head 13 is assembled on the face 20 of the valve plate 14. After the cylinder head 13 has been put in place, it is possible to retain the pins 33 of the spring 28 against the lateral faces 34 of the valve plate 14. Alternatively the mounting of the cylinder head 13 can release the force F. This is achieved by means of a support of the yoke 13 on the spring 28 between its two ends 31 and 32 The cylinder head 13 exerts on the spring 28 a pressure similar to the pressure exerted by an operator during the mounting of the spring 28 on the valve plate 14.
  • the yoke 13 comprises a zone d ' support 36 on the spring 28.
  • the yoke may comprise a flat surface intended to come into contact with the face 20 of the valve plate 14, possibly by interposing a seal 37 between the yoke 13 and the valve plate 14.
  • the bearing zone 36 is located on this flat surface.
  • the bearing zone 36 presses on the spring 28 in its central zone 38 to return the spring 28 completely inside the housing 26 without overflowing the face 20, which allows to release the support of the lugs 33 against the lateral faces 34.
  • the complementary shapes 33 and 34 are configured so as to release the support when the yoke 13 presses the spring 28, holding the spring 28 in abutment against the valve 22 and holding the valve 22 in abutment against the valve plate 14 obtained in the absence of cylinder head 13.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

The invention relates to a reciprocating compressor (10) of a fluid and to a method for assembling the compressor. The compressor includes a valve plate (14) and a cylinder head (13) arranged on the valve plate (14). The valve plate (14) includes a delivery port (18) passing through the valve plate (14) and a delivery valve (22). According to the invention, the valve plate (14) includes a recess (24) having a flat bottom (26) parallel to the valve plate (14), the delivery port (13) being provided in the bottom (26) of the recess (25). The delivery valve (22) is made of a blade substantially occupying the bottom (26) of the recess (25). The compressor (10) includes, in addition, a spring (28) supported between the delivery valve (22) and the cylinder head (13).

Description

Compresseur alternatif à clapet amélioré et procédé d'assemblage du compresseur  Improved clamshell reciprocating compressor and method of assembling the compressor
L'invention concerne un compresseur alternatif destiné à compresser un fluide, notamment un fluide frigorigène. L'invention concerne aussi un procédé d'assemblage du compresseur. Ce type de compresseur comprend un cylindre et un piston se déplaçant dans le cylindre pour compresser le fluide. The invention relates to an alternative compressor for compressing a fluid, especially a refrigerant. The invention also relates to a method of assembling the compressor. This type of compressor comprises a cylinder and a piston moving in the cylinder to compress the fluid.
Dans les compresseurs de fluides alternatifs connus, une plaque à clapets est prévue de façon à permettre l'admission du fluide vers un système de compression proprement dit, c'est-à-dire dans un volume variable ménagé entre le piston et le cylindre. La plaque à clapets est également prévue de façon à permettre l'aspiration et le refoulement du fluide comprimé, ceci à travers des orifices de la plaque, orifices fermés respectivement par des clapets d'aspiration et de refoulement.  In reciprocating fluid compressors known, a valve plate is provided to allow the admission of the fluid to a compression system itself, that is to say in a variable volume formed between the piston and the cylinder. The valve plate is also provided so as to allow the suction and discharge of the compressed fluid through openings in the plate, orifices closed respectively by suction and discharge valves.
Les clapets sont généralement fixés à la plaque à clapets. Le clapet d'aspiration est fixé sur une des faces de la plaque à clapets, face située du coté du cylindre et le clapet de refoulement est fixé sur l'autre face de la plaque à clapets généralement par des moyens distincts. Les clapets sont par exemple formés de lames en acier à ressort venant ouvrir ou fermer les orifices de la plaque à clapets selon les phases d'un cycle de fonctionnement du système de compression. Le cycle de fonctionnement enchaîne habituellement des phases d'aspiration, de compression et de refoulement.  Valves are usually attached to the valve plate. The suction valve is fixed on one face of the valve plate, face located on the side of the cylinder and the discharge valve is fixed on the other side of the valve plate generally by separate means. The valves are for example formed of spring steel blades coming to open or close the orifices of the valve plate according to the phases of an operating cycle of the compression system. The operating cycle usually involves suction, compression and discharge phases.
Dans les solutions connues, on utilise des vis, des rivets ou d'autres éléments s'assemblage pour maintenir les clapets sur la plaque à clapets. Les compresseurs connus comprennent souvent une butée permettant de limiter la course du clapet de refoulement. Cette butée est généralement fixée avec le clapet de refoulement sur la plaque à clapets.  In the known solutions, screws, rivets or other elements are used to hold the flaps on the valve plate. Known compressors often include a stop to limit the stroke of the discharge valve. This stop is usually fixed with the discharge valve on the valve plate.
Les éléments d'assemblage présentent plusieurs inconvénients comme par exemple : The assembly elements have several disadvantages, for example:
· des déformations liées aux éléments d'assemblage qui génèrent des contraintes mécaniques, notamment dans la plaque à clapet, • des risques de fuite lorsque les éléments d'assemblage traversent la plaque à clapets, Deformations related to the assembly elements which generate mechanical stresses, in particular in the flap plate, • risks of leakage when the assembly elements pass through the valve plate,
• un procédé de d'assemblage long et risqué du fait de la nécessité de maîtriser l'assemblage de ces éléments ; dans le cas d'un assemblage vissé il est nécessaire de maîtriser le couple de serrage de la vis et dans un assemblage par rivet il est nécessaire de maîtriser les paramètres de rivetage.  • a long and risky assembly process due to the need to control the assembly of these elements; in the case of a screw connection it is necessary to control the tightening torque of the screw and in a rivet connection it is necessary to control the riveting parameters.
L'invention vise à pallier tout ou partie des problèmes cités plus haut en proposant un compresseur dans lequel l'assemblage du clapet de refoulement est fortement simplifié. The invention aims to overcome all or part of the problems mentioned above by providing a compressor in which the assembly of the discharge valve is greatly simplified.
A cet effet, l'invention a pour objet un compresseur alternatif comprenant :  For this purpose, the subject of the invention is an alternative compressor comprising:
• un cylindre,  • a cylinder,
· un piston se déplaçant dans le cylindre pour compresser un fluide, A piston moving in the cylinder to compress a fluid,
• une plaque à clapets comprenant une première et une seconde faces parallèles entre elles, la plaque à clapets fermant par sa première face une chambre de compression variable ménagée entre le piston et le cylindre, A valve plate comprising a first and a second face parallel to each other, the valve plate closing by its first face a variable compression chamber formed between the piston and the cylinder;
· une culasse disposée sur la seconde face de la plaque à clapets, la culasse comprenant une chambre de refoulement destinée à recevoir le fluide comprimé,  A yoke disposed on the second face of the valve plate, the yoke comprising a discharge chamber intended to receive the compressed fluid,
• un clapet de refoulement,  • a discharge valve,
la plaque à clapets comprenant un orifice de refoulement traversant la plaque à clapets et mettant en communication la chambre de compression et la chambre de refoulement, le clapet de refoulement permettant d'ouvrir et de fermer l'orifice de refoulement, l'ouverture du clapet de refoulement se faisant lorsque la pression du fluide dans la chambre de compression est supérieure à la pression du fluide dans la chambre de refoulement, la plaque à clapets comprenant un logement borgne possédant un fond plat parallèle aux faces de la plaque à clapets et s'ouvrant sur la seconde face, l'orifice de refoulement étant réalisé entre le fond du logement et la première face, the valve plate comprising a discharge orifice passing through the valve plate and putting the compression chamber into communication with the discharge chamber, the discharge valve for opening and closing the discharge orifice, the opening of the valve when the pressure of the fluid in the compression chamber is greater than the pressure of the fluid in the discharge chamber, the valve plate comprising a blind housing having a flat bottom parallel to the faces of the valve plate and opening on the second face, the discharge orifice being formed between the bottom of the housing and the first face,
le clapet de refoulement étant formé d'une lame disposée dans le logement et occupant sensiblement le fond du logement, le compresseur comprenant en outre un ressort s'appuyant entre le clapet de refoulement et la culasse. the discharge valve being formed of a blade disposed in the housing and occupying substantially the bottom of the housing, the compressor further comprising a spring bearing between the discharge valve and the cylinder head.
Selon l'invention le logement et le ressort comprennent des formes complémentaires configurées de façon à maintenir le ressort en appui contre le clapet de refoulement et pour maintenir le clapet de refoulement en appui contre la plaque à clapets en l'absence de la culasse.  According to the invention the housing and the spring comprise complementary shapes configured so as to maintain the spring bearing against the discharge valve and to maintain the discharge valve bearing against the valve plate in the absence of the cylinder head.
L'invention a également pour objet un procédé d'assemblage d'un compresseur réalisé selon l'invention, caractérisé en ce qu'il consiste à enchaîner dans l'ordre les opérations suivante : The subject of the invention is also a method for assembling a compressor produced according to the invention, characterized in that it consists in following in sequence the following operations:
• poser le clapet de refoulement sur le fond du logement,  • put the discharge valve on the bottom of the housing,
• poser le ressort sur le clapet de refoulement,  • put the spring on the discharge valve,
• exercer une pression sur le ressort entre ses deux extrémités de manière à engager les formes complémentaires,  • exert pressure on the spring between its two ends so as to engage the complementary shapes,
· relâcher la pression exercée sur le ressort.  · Release the pressure on the spring.
En mettant en œuvre l'invention, on supprime tout élément d'assemblage du clapet refoulement sur la plaque à clapets. Pour l'assemblage, du clapet, on utilise uniquement le ressort qui peut avantageusement remplir la fonction de butée du clapet de refoulement. By implementing the invention, it eliminates any assembly element of the discharge valve on the valve plate. For the assembly of the valve, only the spring is used which can advantageously fulfill the stop function of the discharge valve.
La suppression de tout élément d'assemblage permet d'éviter tout risque de fuite et toute déformation de la plaque à clapets.  The removal of any assembly element avoids any risk of leakage and deformation of the valve plate.
L'invention sera mieux comprise et d'autres avantages apparaîtront à la lecture de la description détaillée d'un mode de réalisation donné à titre d'exemple, description illustrée par le dessin joint dans lequel : The invention will be better understood and other advantages will appear on reading the detailed description of an embodiment given by way of example, a description illustrated by the attached drawing in which:
la figure 1 représente en coupe partielle un compresseur alternatif selon l'invention ;  Figure 1 shows in partial section an alternative compressor according to the invention;
la figure 2 représente une plaque à clapets du compresseur de la figure 1 ;  Figure 2 shows a valve plate of the compressor of Figure 1;
la figure 3 représente en vue éclatée la plaque à clapet, ses clapets et une culasse du compresseur.  Figure 3 shows an exploded view of the valve plate, its valves and a cylinder head of the compressor.
Par souci de clarté, les mêmes éléments porteront les mêmes repères dans les différentes figures. La figure 1 représente partiellement un compresseur alternatif 10 destiné à comprimer un fluide. Le compresseur 10 comprend un cylindre 1 1 , un piston 12, une culasse 13 et une plaque à clapets 14. Le piston 12 se déplace dans le cylindre 1 1 suivant un mouvement alternatif de translation selon un axe 15. Ce mouvement peut être obtenu à partir d'un moteur rotatif. La transformation de mouvement de la rotation du moteur vers la translation du piston 12 peut être réalisée par un système bielle manivelle non représenté sur la figure 1 . La plaque à clapets 14 coiffe le cylindre 1 1 pour former une chambre de compression 16 avec le piston 12. La chambre de compression 16 possède un volume variable. Sur la figure 1 , le piston 12 est représenté à son point mort haut et le volume de la chambre de compression 16 est quasiment nul. La culasse 13 surplombe la plaque à clapets 14. For the sake of clarity, the same elements will bear the same references in the different figures. Figure 1 partially shows an alternative compressor 10 for compressing a fluid. The compressor 10 comprises a cylinder 1 1, a piston 12, a yoke 13 and a valve plate 14. The piston 12 moves in the cylinder 1 1 in a reciprocating translational movement along an axis 15. This movement can be obtained at from a rotary engine. The transformation of movement of the rotation of the motor towards the translation of the piston 12 can be achieved by a crank system not shown in FIG. 1. The valve plate 14 caps the cylinder January 1 to form a compression chamber 16 with the piston 12. The compression chamber 16 has a variable volume. In Figure 1, the piston 12 is shown at its top dead center and the volume of the compression chamber 16 is virtually zero. The yoke 13 overhangs the valve plate 14.
Il est possible de mettre en œuvre l'invention dans un compresseur possédant plusieurs couples de piston et de cylindre.  It is possible to implement the invention in a compressor having a plurality of piston and cylinder torques.
La culasse 13 comprend une chambre d'admission, non visible sur la figure 1 et dans laquelle circule le fluide avant compression ainsi qu'une chambre de refoulement 17 dans laquelle circule le fluide compressé. La plaque à clapets 14 comprend des orifices permettant de faire communiquer les chambres avec la chambre de compression. Un orifice d'aspiration faisant communiquer la chambre d'admission avec la chambre de compression n'apparait pas dans le plan de coupe de la figure 1 . Deux orifices de refoulement 18 apparaissent sur la figure 1 et font communiquer la chambre de refoulement 17 avec la chambre de compression16. Les deux orifices 18 ne sont donnés qu'à titre d'exemple. L'invention peut être mise en œuvre avec un seul orifice ou avec plus de deux.  The cylinder head 13 comprises an intake chamber, not visible in FIG. 1, in which the fluid circulates before compression and a discharge chamber 17 in which the compressed fluid circulates. The valve plate 14 includes orifices for communicating the chambers with the compression chamber. A suction port communicating the inlet chamber with the compression chamber does not appear in the section plane of FIG. Two discharge ports 18 appear in FIG. 1 and make the delivery chamber 17 communicate with the compression chamber 16. The two orifices 18 are given only by way of example. The invention can be implemented with a single orifice or with more than two.
La plaque à clapet 14 est plane et possède deux faces principales parallèles 19 et 20. La face 19 est en contact avec le cylindre 1 1 et la face 20 est en contact avec la culasse 13. Des joints d'étanchéité peuvent être placés d'une part entre la culasse 13 et la plaque à clapets 14 et d'autre part entre la plaque à clapets 14 et le cylindre 1 1 . La plaque à clapets 14 porte sur sa face 19 un clapet d'aspiration 21 , visible sur la figure 3 et permettant d'obturer temporairement l'orifice d'aspiration et sur sa face 20 un clapet de refoulement 22 permettant d'obturer temporairement l'orifice de refoulement 18. Plus précisément, l'ouverture et la fermeture des clapets 21 et 22 se fait en fonction des différences de pression entre les chambres. Ces différences de pression sont fonction de la position du piston 12 dans le cylindre 1 1 . Les clapets 21 et 22 s'étendent, en position fermée à plat sur leur face respective de la plaque à clapets 14. Selon l'invention, la plaque à clapets 14 comprend un logement borgne 25 possédant un fond plat 26 parallèle aux faces 19 et 20 et s'ouvrant sur la face 20. Le logement 25 est avantageusement borgne hormis le ou les orifices de refoulement 18 qui sont réalisés entre le fond 26 du logement 25 et la face 19. Le clapet de refoulement 22 est formé d'une lame disposée dans le logement 25 et occupe sensiblement le fond 26 du logement 25. Avantageusement, le clapet de refoulement 22 ne comprend aucun perçage le traversant. Il est formé d'une lame élastique possédant un contour sensiblement rectangulaire. The valve plate 14 is flat and has two parallel main faces 19 and 20. The face 19 is in contact with the cylinder 1 1 and the face 20 is in contact with the cylinder head 13. Seals can be placed a part between the yoke 13 and the valve plate 14 and secondly between the valve plate 14 and the cylinder 1 1. The valve plate 14 carries on its face 19 a suction valve 21, visible in Figure 3 and for closing temporarily the suction port and on its face 20 a discharge valve 22 for closing temporarily the l 18. More specifically, the opening and closing of the valves 21 and 22 is made according to the pressure differences between the chambers. These differences pressure depend on the position of the piston 12 in the cylinder 1 1. The valves 21 and 22 extend in a closed position flat on their respective face of the valve plate 14. According to the invention, the valve plate 14 comprises a blind housing 25 having a flat bottom 26 parallel to the faces 19 and 20 and opening on the face 20. The housing 25 is preferably blind except the or the discharge ports 18 which are formed between the bottom 26 of the housing 25 and the face 19. The discharge valve 22 is formed of a blade disposed in the housing 25 and substantially occupies the bottom 26 of the housing 25. Advantageously, the discharge valve 22 does not include any drilling therethrough. It is formed of an elastic blade having a substantially rectangular contour.
Le compresseur 10 comprend en outre un ressort 28 s'appuyant entre le clapet de refoulement 22 et la culasse 13. Le ressort 28 peut prendre appui sur la culasse 13 et sur le clapet de refoulement 22 au niveau de l'axe 15 ou entre les deux orifices de refoulement 18. Le ressort 28 ne possède alors que deux points d'appui, un sur la culasse 13 et un sur le clapet de refoulement 22.  The compressor 10 further comprises a spring 28 supported between the discharge valve 22 and the cylinder head 13. The spring 28 can bear on the cylinder head 13 and on the discharge valve 22 at the axis 15 or between the two discharge ports 18. The spring 28 then has only two bearing points, one on the cylinder head 13 and one on the discharge valve 22.
Une forme alternative et avantageuse du ressort 28 est bien visible sur la figure 2 qui représente la plaque à clapet en vue de dessus perpendiculairement à l'axe 15.  An alternative and advantageous form of the spring 28 is clearly visible in FIG. 2 which represents the valve plate in plan view perpendicular to the axis 15.
La figure 3 illustre également cette forme avantageuse. La figure 3 représente en vue éclatée la plaque à clapets 14, les clapets 21 et 22, les ressorts 28 associé à chaque clapet de refoulement 22 ainsi que la culasse Figure 3 also illustrates this advantageous form. 3 shows an exploded view the valve plate 14, the valves 21 and 22, the springs 28 associated with each discharge valve 22 and the cylinder head
13. 13.
Dans l'exemple représenté, le compresseur 10 comprend deux clapets de refoulement 22 associés à un même piston 12. Le nombre de clapets de refoulement peut varier sans sortir du cadre de l'invention. Un ressort 28 est associé à chacun des clapets de refoulement 22. Sur la figure 2, les deux ressorts 28 cachent les clapets 22. Les ressorts 28, les clapets 22 et les orifices de refoulement 18 associés sont avantageusement identiques. Par la suite, on ne décrira qu'un seul des ressorts 28.  In the example shown, the compressor 10 comprises two discharge valves 22 associated with the same piston 12. The number of discharge valves can vary without departing from the scope of the invention. A spring 28 is associated with each of the discharge valves 22. In FIG. 2, the two springs 28 conceal the valves 22. The springs 28, the valves 22 and the associated discharge orifices 18 are advantageously identical. Subsequently, only one of the jurisdictions will be described.
Dans la variante représentée, le ressort 28 possède trois points d'appui, deux sur la plaque à clapet 14 et un sur la culasse 13. Plus précisément, le ressort 28 est formé d'une lame bombée s'étendant selon une direction principale 29 entre deux extrémités 31 et 32. Le ressort 28 prend appui à ses deux extrémités 31 et 32 sur le clapet de refoulement 22. Le ressort 28 prend appui sur la culasse 13 entre ses deux extrémités 31 et 32 et avantageusement à mi distance entre ses deux extrémités 31 et 32. L'orifice de refoulement ou les orifices de refoulement 18 sont situés entre les deux extrémités 31 et 32 du ressort 28. In the variant shown, the spring 28 has three bearing points, two on the valve plate 14 and one on the cylinder head 13. More precisely, the spring 28 is formed of a curved blade extending in a main direction 29 between two ends 31 and 32. The spring 28 bears at its two ends 31 and 32 on the discharge valve 22. The spring 28 takes support on the yoke 13 between its two ends 31 and 32 and preferably at mid-distance between its two ends 31 and 32. The discharge orifice or the discharge orifices 18 are located between the two ends 31 and 32 of the spring 28.
En fonctionnement, lorsque la pression du fluide dans la chambre de compression 16 est inférieure ou égale à la pression du fluide dans la chambre de refoulement 17, le clapet de refoulement 22 reste en appui contre le fond 26 du logement 25, comme représenté sur la figure 1 . Lorsque la pression du fluide dans la chambre de compression 16 devient supérieure à la pression du fluide dans la chambre de refoulement 17, le clapet de refoulement 22 se déforme et se décolle du fond 26 du logement 25 au niveau des orifices 18 tout en restant en appui sur le fond 26 au niveau des extrémités 31 et 32. Le clapet de refoulement 22 peut se déformer au point de venir en contact avec le ressort 28. Au niveau des orifices de refoulement 18, le logement, possède une largeur, perpendiculairement à la direction principale 29, supérieure à celle du clapet 22 et du ressort 28 de façon à permettre le passage du fluide compressé des orifices 18 vers la chambre de refoulement 17.  In operation, when the pressure of the fluid in the compression chamber 16 is less than or equal to the pressure of the fluid in the discharge chamber 17, the discharge valve 22 remains in abutment against the bottom 26 of the housing 25, as shown in FIG. figure 1 . When the pressure of the fluid in the compression chamber 16 becomes greater than the pressure of the fluid in the discharge chamber 17, the discharge valve 22 deforms and separates from the bottom 26 of the housing 25 at the openings 18 while remaining in position. bearing on the bottom 26 at the ends 31 and 32. The discharge valve 22 may deform to the point of coming into contact with the spring 28. At the discharge orifices 18, the housing has a width, perpendicular to the main direction 29, greater than that of the valve 22 and the spring 28 so as to allow the passage of the compressed fluid from the orifices 18 to the discharge chamber 17.
Lorsque le compresseur 10 est assemblé, aucun élément ne vient fixer le clapet 22 et le ressort 28 ni à la plaque à clapets 14 ni à la culasse 13. Le clapet 22 et le ressort 28 qui lui est associé sont simplement posé dans le logement 25. La forme du logement 25 suffit à maintenir en place le clapet 22 et son ressort 28.  When the compressor 10 is assembled, no element comes to fix the valve 22 and the spring 28 ni to the valve plate 14 or to the cylinder head 13. The valve 22 and the spring 28 associated therewith are simply placed in the housing 25 The shape of the housing 25 is sufficient to hold in place the valve 22 and its spring 28.
Ce dispositif peut poser un problème lors de l'assemblage du compresseur 10. En effet, le maintien en position du clapet 22 et de son ressort est obtenu par gravité avant l'assemblage de la culasse 13. Cela impose de maintenir la plaque à clapets 14 de façon à ce que sa face 20 soit disposée vers le haut.  This device can pose a problem during the assembly of the compressor 10. Indeed, the holding in position of the valve 22 and its spring is obtained by gravity before the assembly of the cylinder head 13. This requires maintaining the valve plate 14 so that its face 20 is arranged upwards.
Il est possible d'améliorer encore l'assemblage en permettant d'autres manipulations de la plaque à clapets 14 durant l'assemblage du compresseur 10. L'objectif est d'obtenir un maintien du clapet 22 et de son ressort 28 comme obtenu avec les réalisations de l'art antérieur mais sans moyen de fixation de type rivet ou vis. It is possible to further improve the assembly by allowing further manipulations of the valve plate 14 during the assembly of the compressor 10. The objective is to maintain the valve 22 and its spring 28 as obtained with the embodiments of the prior art but without fastening means of the rivet or screw type.
A cet effet, le logement 25 et le ressort 28 comprennent des formes complémentaires configurées de façon à maintenir le ressort 28 en appui contre le clapet 22 et pour maintenir le clapet 22 en appui contre la plaque à clapets 14 en l'absence de la culasse 13. Les formes complémentaires permettent par exemple de maintenir le clapet 22 et son ressort 28 par adhérence dans le logement. A cet effet, le ressort 28 comprend des ergots 33 destinés à prendre appui contre des faces latérales 34 du logement 25. Les ergots 33 s'étendant perpendiculairement à la direction principale 29 et les faces latérales 34 sont perpendiculaires à la direction principale 29 et perpendiculaires au fond 26 du logement 25.  For this purpose, the housing 25 and the spring 28 comprise complementary shapes configured to hold the spring 28 in abutment against the valve 22 and to hold the valve 22 in abutment against the valve plate 14 in the absence of the cylinder head 13. The complementary shapes allow for example to maintain the valve 22 and its spring 28 by adhesion in the housing. For this purpose, the spring 28 comprises lugs 33 intended to bear against lateral faces 34 of the housing 25. The lugs 33 extending perpendicular to the main direction 29 and the lateral faces 34 are perpendicular to the main direction 29 and perpendicular at the bottom 26 of housing 25.
Lors du montage de la plaque à clapets 14 avant la mise en place de la culasse 13, l'assemblage du compresseur 10 consiste à enchaîner dans l'ordre les opérations suivantes :  During assembly of the valve plate 14 before the installation of the cylinder head 13, the assembly of the compressor 10 consists of sequencing the following operations in the following order:
• poser le clapet de refoulement 22 sur le fond 26 du logement 25, • put the discharge valve 22 on the bottom 26 of the housing 25,
• poser le ressort 28 sur le clapet de refoulement 22, • put the spring 28 on the discharge valve 22,
• exercer une pression sur le ressort 28 entre ses deux extrémités 31 et 32 de manière à engager les formes complémentaires 33 et 34,  Exerting pressure on the spring 28 between its two ends 31 and 32 so as to engage the complementary shapes 33 and 34,
· relâcher la pression exercée sur le ressort 28.  · Release the pressure exerted on the spring 28.
La pression exercée sur le ressort 28 aplatit le ressort 28 et tend à écarter les ergots 33 dans la direction 29. Les ergots 33 peuvent alors glisser le long des faces latérales 34. Le fait de relâcher la pression tend à rapprocher les ergots 33 et à les mettre en appui contre les faces latérales 34. La tension du ressort 28 permet à un ergot 33 d'exercer un effort sur la face latérale 34 en regard. L'effort F combiné avec un coefficient de frottement de l'ergot 33 par rapport à la face latérale 34 permet le maintien du ressort 28 dans le logement 25. The pressure on the spring 28 flattens the spring 28 and tends to move the lugs 33 in the direction 29. The lugs 33 can then slide along the lateral faces 34. The fact of releasing the pressure tends to bring the lugs 33 and to put them in abutment against the lateral faces 34. The tension of the spring 28 allows a lug 33 to exert a force on the lateral face 34 opposite. The force F combined with a coefficient of friction of the lug 33 relative to the lateral face 34 allows the spring 28 to be held in the housing 25.
Après montage du clapet 22 et de son ressort 28, on assemble la culasse 13 sur la face 20 de la plaque à clapet 14. Après mise en place de la culasse 13, il est possible de conserver les ergots 33 du ressort 28 en appui contre les faces latérales 34 de la plaque à clapet 14. Alternativement le montage de la culasse 13 peut libérer l'effort F . Ceci est réalisé au moyen d'un appui de la culasse 13 sur le ressort 28 entre ses deux extrémités 31 et 32 perpendiculairement à la face 20. La culasse 13 exerce sur le ressort 28 une pression semblable à la pression exercée par un opérateur lors du montage du ressort 28 sur la plaque à clapets 14. A cet effet, la culasse 13 comprend une zone d'appui 36 sur le ressort 28. La culasse peut comprendre une surface plane destinée à venir au contact de la face 20 de la plaque à clapets 14, éventuellement en interposant un joint d'étanchéité 37 entre la culasse 13 et la plaque à clapets14. La zone d'appui 36 est située sur cette surface plane. After mounting the valve 22 and its spring 28, the cylinder head 13 is assembled on the face 20 of the valve plate 14. After the cylinder head 13 has been put in place, it is possible to retain the pins 33 of the spring 28 against the lateral faces 34 of the valve plate 14. Alternatively the mounting of the cylinder head 13 can release the force F. This is achieved by means of a support of the yoke 13 on the spring 28 between its two ends 31 and 32 The cylinder head 13 exerts on the spring 28 a pressure similar to the pressure exerted by an operator during the mounting of the spring 28 on the valve plate 14. For this purpose, the yoke 13 comprises a zone d ' support 36 on the spring 28. The yoke may comprise a flat surface intended to come into contact with the face 20 of the valve plate 14, possibly by interposing a seal 37 between the yoke 13 and the valve plate 14. The bearing zone 36 is located on this flat surface.
En l'absence de culasse 13, lorsque le ressort 28 et le clapet 22 sont assemblés sur la plaque à clapet 14, une zone centrale 38 du ressort 28, située à mi distance de ses deux extrémités 31 et 32, déborde de la face 20. Au montage de la culasse 13, la zone d'appui 36 vient appuyer sur le ressort 28 en sa zone centrale 38 pour ramener le ressort 28 complètement à l'intérieur du logement 26 sans déborder de la face 20, ce qui permet de libérer l'appui des ergots 33 contre les faces latérales 34. En d'autres termes, les formes complémentaires 33 et 34 sont configurées de façon à relâcher le maintien lorsque la culasse 13 appuie sur le ressort 28, maintien du ressort 28 en appui contre le clapet 22 et maintien du clapet 22 en appui contre la plaque à clapets 14 obtenus en l'absence de culasse 13.  In the absence of yoke 13, when the spring 28 and the valve 22 are assembled on the valve plate 14, a central zone 38 of the spring 28, located at a distance from its two ends 31 and 32, projects beyond the face 20 When mounting the cylinder head 13, the bearing zone 36 presses on the spring 28 in its central zone 38 to return the spring 28 completely inside the housing 26 without overflowing the face 20, which allows to release the support of the lugs 33 against the lateral faces 34. In other words, the complementary shapes 33 and 34 are configured so as to release the support when the yoke 13 presses the spring 28, holding the spring 28 in abutment against the valve 22 and holding the valve 22 in abutment against the valve plate 14 obtained in the absence of cylinder head 13.
Ainsi les seuls efforts s'exerçant sur le ressort 28 sont parallèles à l'axe 15. Ceci permet de mieux maîtriser l'appui du ressort 28 contre le clapet 22. Cela permet également de garantir une position précise du ressort 28 dans sa fonction de butée dans le déplacement du clapet 22 lors de son ouverture sous l'effet de la pression du fluide dans la chambre de compression 16.  Thus the only forces exerted on the spring 28 are parallel to the axis 15. This allows better control of the support of the spring 28 against the valve 22. This also ensures a precise position of the spring 28 in its function of stop in the displacement of the valve 22 when it is opened under the effect of the pressure of the fluid in the compression chamber 16.

Claims

REVENDICATIONS
1 . Compresseur alternatif comprenant : 1. Reciprocating compressor comprising:
• un cylindre (1 1 ),  A cylinder (1 1),
• un piston (12) se déplaçant dans le cylindre (1 1 ) pour compresser un fluide,  A piston (12) moving in the cylinder (1 1) for compressing a fluid,
· une plaque à clapets (14) comprenant une première et une seconde faces (19, 20) parallèles entre elles, la plaque à clapets (14) fermant par sa première face (19) une chambre de compression (16) variable ménagée entre le piston (12) et le cylindre (1 1 ),  A valve plate (14) comprising first and second faces (19, 20) parallel to one another, the valve plate (14) closing by its first face (19) a variable compression chamber (16) arranged between the piston (12) and the cylinder (1 1),
• une culasse (13) disposée sur la seconde face (20) de la plaque à clapets (14), la culasse (13) comprenant une chambre de refoulement A yoke (13) disposed on the second face (20) of the valve plate (14), the yoke (13) comprising a discharge chamber
(17) destinée à recevoir le fluide comprimé, (17) for receiving the compressed fluid,
• un clapet de refoulement (22),  • a discharge valve (22),
la plaque à clapets (14) comprenant un orifice de refoulement (18) traversant la plaque à clapets (14) et mettant en communication la chambre de compression (16) et la chambre de refoulement (17), le clapet de refoulement (22) permettant d'ouvrir et de fermer l'orifice de refoulement (18), l'ouverture du clapet de refoulement (22) se faisant lorsque la pression du fluide dans la chambre de compression (16) est supérieure à la pression du fluide dans la chambre de refoulement (17), the valve plate (14) comprising a discharge orifice (18) passing through the valve plate (14) and placing the compression chamber (16) in communication with the discharge chamber (17), the discharge valve (22) for opening and closing the discharge port (18), the discharge valve opening (22) being effected when the pressure of the fluid in the compression chamber (16) is greater than the pressure of the fluid in the discharge chamber (17),
la plaque à clapets (14) comprenant un logement (25) possédant un fond plat (26) parallèle aux faces (19, 20) de la plaque à clapets (14) et s'ouvrant sur la seconde face (20), l'orifice de refoulement (18) étant réalisé entre le fond (26) du logement (25) et la première face (19), the valve plate (14) comprising a housing (25) having a flat bottom (26) parallel to the faces (19,20) of the valve plate (14) and opening to the second face (20); discharge orifice (18) being formed between the bottom (26) of the housing (25) and the first face (19),
le clapet de refoulement (22) étant formé d'une lame disposée dans le logement (25) et occupant sensiblement le fond (26) du logement (25), le compresseur (10) comprenant en outre un ressort (28) s'appuyant entre le clapet de refoulement (22) et la culasse (13), the discharge valve (22) being formed of a blade disposed in the housing (25) and occupying substantially the bottom (26) of the housing (25), the compressor (10) further comprising a spring (28) supporting between the discharge valve (22) and the cylinder head (13),
le compresseur (10) étant caractérisé en ce que le logement (25) et le ressort (28) comprennent des formes complémentaires (33, 34) configurées de façon à maintenir le ressort (28) en appui contre le clapet de refoulement (22) et à maintenir le clapet de refoulement (22) en appui contre la plaque à clapets (14) en l'absence de la culasse (13). the compressor (10) being characterized in that the housing (25) and the spring (28) comprise complementary shapes (33, 34) configured to maintain the spring (28) bearing against the discharge valve (22) and keeping the discharge valve (22) bearing against the valve plate (14) in the absence of the cylinder head (13).
2. Compresseur selon la revendication 1 , caractérisé en ce que le clapet de refoulement (22) ne comprend aucun perçage le traversant. 2. Compressor according to claim 1, characterized in that the discharge valve (22) comprises no drilling therethrough.
3. Compresseur selon l'une des revendications précédentes, caractérisé en ce que le ressort (28) est formé d'une lame bombée s'étendant selon une direction principale (29) entre deux extrémités (31 , 32), en ce que le ressort (28) prend appui à ces deux extrémités (31 , 32) sur le clapet de refoulement (22) et en ce que le ressort (28) prend appui sur la culasse (13) entre ses deux extrémités (31 , 32). 3. Compressor according to one of the preceding claims, characterized in that the spring (28) is formed of a domed blade extending in a main direction (29) between two ends (31, 32), in that the spring (28) bears against these two ends (31, 32) on the discharge valve (22) and in that the spring (28) bears on the yoke (13) between its two ends (31, 32).
4. Compresseur selon la revendication 3, caractérisé en ce que l'orifice de refoulement (18) est situé entre les deux extrémités (31 , 32) du ressort (28). 4. Compressor according to claim 3, characterized in that the discharge port (18) is located between the two ends (31, 32) of the spring (28).
5. Compresseur selon l'une des revendications précédentes, caractérisé en ce que le logement (25) est borgne hormis l'orifice de refoulement (18). 5. Compressor according to one of the preceding claims, characterized in that the housing (25) is blind except the discharge port (18).
6. Compresseur selon l'une des revendications précédentes, caractérisé en ce que les formes complémentaires comprennent, pour le ressort (28) des ergots (33) et pour le logement (25) des faces latérales (34), les formes complémentaires étant définies de façon à permettre le maintien du clapet de refoulement (22) et du ressort (28) par adhérence dans le logement (25) en l'absence de la culasse (13). 6. Compressor according to one of the preceding claims, characterized in that the complementary shapes comprise, for the spring (28) lugs (33) and for the housing (25) side faces (34), the complementary shapes being defined. so as to allow the discharge valve (22) and the spring (28) to be held by adhesion in the housing (25) in the absence of the cylinder head (13).
7. Compresseur selon la revendication 6, caractérisé en ce que les ergots (33) s'étendent perpendiculairement à la direction principale (29) et en ce que les faces latérales (34) sont perpendiculaires à la direction principale (29) et perpendiculaires au fond (26) du logement (25). 7. Compressor according to claim 6, characterized in that the lugs (33) extend perpendicularly to the main direction (29) and in that the lateral faces (34) are perpendicular to the main direction (29) and perpendicular to the bottom (26) of the housing (25).
8. Compresseur selon l'une des revendications précédentes, caractérisé en ce que la culasse (13) comprend une zone d'appui (36) sur le ressort (28) et en ce que les formes complémentaires (33, 34) sont configurées de façon à relâcher le maintien lorsque la culasse (13) appuie sur le ressort (28). 8. Compressor according to one of the preceding claims, characterized in that the yoke (13) comprises a bearing zone (36) on the spring (28) and in that the complementary shapes (33, 34) are configured from to release the support when the yoke (13) rests on the spring (28).
9. Procédé d'assemblage d'un compresseur selon l'une des revendications précédentes, caractérisé en ce qu'il consiste à enchaîner dans l'ordre les opérations suivante : 9. A method of assembling a compressor according to one of the preceding claims, characterized in that it consists in sequencing the following operations:
· poser le clapet de refoulement (22) sur le fond (26) du logement (25), · Put the discharge valve (22) on the bottom (26) of the housing (25),
• poser le ressort (28) sur le clapet de refoulement (22), • put the spring (28) on the discharge valve (22),
• exercer une pression sur le ressort (28) entre ses deux extrémités (31 , 32) de manière à engager les formes complémentaires (33, 34), • exerting pressure on the spring (28) between its two ends (31, 32) so as to engage the complementary shapes (33, 34),
• relâcher la pression exercée sur le ressort (28). • Release the pressure on the spring (28).
EP14795796.3A 2013-10-22 2014-10-17 Reciprocating compressor having an improved valve and method for assembling the compressor Withdrawn EP3060804A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1360275A FR3012182B1 (en) 2013-10-22 2013-10-22 IMPROVED ALTERNATIVE VALVE COMPRESSOR AND METHOD FOR ASSEMBLING THE COMPRESSOR
PCT/EP2014/072380 WO2015059061A1 (en) 2013-10-22 2014-10-17 Reciprocating compressor having an improved valve and method for assembling the compressor

Publications (1)

Publication Number Publication Date
EP3060804A1 true EP3060804A1 (en) 2016-08-31

Family

ID=49713354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14795796.3A Withdrawn EP3060804A1 (en) 2013-10-22 2014-10-17 Reciprocating compressor having an improved valve and method for assembling the compressor

Country Status (3)

Country Link
EP (1) EP3060804A1 (en)
FR (1) FR3012182B1 (en)
WO (1) WO2015059061A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1688185A (en) * 1927-05-21 1928-10-16 Kellogg Mfg Company Valve
KR930005874Y1 (en) * 1991-01-31 1993-09-01 삼성전자 주식회사 Compressor
JP3769975B2 (en) * 1999-04-16 2006-04-26 株式会社豊田自動織機 Valve structure
FR2800831B1 (en) * 1999-11-05 2002-02-15 Tecumseh Europe Sa DISCHARGE VALVE DEVICE FOR A FLUID COMPRESSOR

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015059061A1 *

Also Published As

Publication number Publication date
WO2015059061A1 (en) 2015-04-30
FR3012182B1 (en) 2018-04-06
FR3012182A1 (en) 2015-04-24

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