EP0853200B1 - Compresseur avec embrayage - Google Patents

Compresseur avec embrayage Download PDF

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Publication number
EP0853200B1
EP0853200B1 EP97310001A EP97310001A EP0853200B1 EP 0853200 B1 EP0853200 B1 EP 0853200B1 EP 97310001 A EP97310001 A EP 97310001A EP 97310001 A EP97310001 A EP 97310001A EP 0853200 B1 EP0853200 B1 EP 0853200B1
Authority
EP
European Patent Office
Prior art keywords
housing
compressor
clutch
gas compressor
assembly
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
EP97310001A
Other languages
German (de)
English (en)
Other versions
EP0853200A2 (fr
EP0853200A3 (fr
Inventor
Jeremy James Durrant
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.)
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Knorr Bremse Systems for Commercial Vehicles Ltd
Original Assignee
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Knorr Bremse Systems for Commercial Vehicles Ltd
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 Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH, Knorr Bremse Systems for Commercial Vehicles Ltd filed Critical Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Publication of EP0853200A2 publication Critical patent/EP0853200A2/fr
Publication of EP0853200A3 publication Critical patent/EP0853200A3/fr
Application granted granted Critical
Publication of EP0853200B1 publication Critical patent/EP0853200B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/01—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being mechanical
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/002—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by internal combustion engines
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control

Definitions

  • This invention relates to clutch-driven gas compressors especially but not exclusively a clutch-driven air compressor for use in automotive vehicles.
  • Patent Application GB 2182732 also discloses an arrangement in which the actuator and the clutch are located axially beyond the housing of the cylinder and thus necessitates in the use of an end bearing 33 for the crankshaft and a further set of bearings 12 and 24 which support an input shaft member connected to the crankshaft via the clutch. Again, this arrangement requires a significant amount of space axially of the cylinder of the compressor and also radially beyond the main bearing of the crankshaft.
  • the object of the present invention is to provide an improved clutch-driven compressor by which such space considerations are more easily accommodated, in which the space occupied by the clutch and actuator projects from the main housing of the compressor by a relatively small amount.
  • a gas compressor comprising a housing and a reciprocable wall said wall being movable in said housing to cyclicly increase and decrease the volume of a compression chamber to induce and deliver gas under pressure said wall being connected to an eccentric bearing of a shaft rotatable in a main bearing of the housing said shaft being drivable via a coupling means said coupling means being disengageable by an actuator to interrupt operation of the compressor characterised in that said actuator is located in an assembly which includes a drive side end cover of the compressor surrounding said main bearing, the end cover and said actuator being at least partially contained in a projection of said chamber in the direction of movement of said wall.
  • said coupling means comprises a friction clutch.
  • Said end cover may close an aperture in the housing via which the crank shaft may be assembled into the compressor crankcase end through which bearing the drive end of the shaft extends to couple with a drive-side of the clutch.
  • the compressor housing 1 comprises an integral cast metal crank-case 2, two parallel cylinder bores 14 and 15 a clutch housing 4 enclosing a multiplate wet-clutch 12 which receives a drive end of a crank shaft 6.
  • the details of the release clutch (12) and details of the cylinder head (not shown) are omitted from Fig. 1 in the interest of simplicity.
  • the non-driven end bearing 5 of the crankshaft 6 is carried in an integral end plate 7 of the crank-case whereas the driven-end main bearing 8 is carried in a generally annular closure component 19, which is accessible for assembly purposes through the clutch housing 4.
  • the aperture 20 which receives component 19 is of such external dimensions as to permit assembly of the crankshaft (6) into the crankcase 2 through aperture 20.
  • Component 19 is then secured by a plurality of peripherally spaced bolts such as 22 before insertion of a multiplate clutch mechanism (not shown) of clutch 12.
  • the annular closure component 19 and the bearing 8 carried thereby extend inwardly of the aperture 20 of the crankcase into an axial projection of the cylinder 14 and provide an axial abutment with the adjacent crank web 9. This and a corresponding inward projection 11 of the end 7 which carries the other main bearing 5 afford optimal use of the overall axial length of the crankcase housing.
  • the annular closure component 19 is formed to provide an annular cylinder bore 23 surrounding and coaxial with bearing 8.
  • An annular piston 24 has outer and inner annular seals 25 and 26 axially sealingly slideable in the annular bore 23.
  • a thrust ring 27 carried by 24 is engageable with a release thrust bearing ring 28 of the clutch.
  • the compressor main bearings 5 and 8 are supplied with oil under pressure from the vehicle engine via a further port 35 and oil-ways 36, 37, 38 breaking out at big-end crank pins 16 and 17 and at main bearings to provide the usual lubrication.
  • a further oil-way (not shown) is provided to maintain oil irrigation of the plates in the present example of a multiplate wet-clutch.
  • the cylinder head (not shown) conventionally has air inlet and delivery ports and respective reed-valves communicating with the compression chambers of the respective cylinders.
  • the compressor operates in known manner whilst offering the energy saving to be expected from a governor-controlled clutch-driven compressor which only rotates when required to do so.
  • a single housing drive-side end cover such as 19 which carries the annular release piston and according to the invention extends axially inwardly of the crankcase to utilise space in a projection of the cylinder bore 14, overall axial dimensions can be minimised.
  • a screw-in control pressure port seal member 31 is seen to be provided in a control pressure port 30 in the crankcase housing to seal against assembly 19 and communicate with the interior of the annular clutch release cylinder 23 of the closure component 19 such that when pressurised by a control pressure from a governor device, the piston is urged leftwards as seen in Figs. 1 and 2 to act upon thrust ring 28 to release the friction clutch and unload the compressor.
  • a spool seal 32 has two peripheral O-ring seals 33 and 34 and the component 19 is provided with a boss 19a of sufficient axial length to accommodate the innermost seal 33.
  • the spool seal 32 is located in port 31 of the housing by a screw-in member 31a.
  • the spool seal 32 is located at its inner end with a port 19b of a boss 19a which provides location with an axial recess 1b of the housing. The seal 32 is therefore able to tilt sufficiently to accommodate for only approximate alignment between 19a and 31a without leakage.
  • a fluid tight communication between a screw-in port 41 may include a seal member 42 having a peripheral O-ring 43 which mutually seals with 41 and an end face sealing O-ring 44.
  • the member 42 is urged by member 31 via a pair of disc-springs 45 into sealing engagement with a flat surface 19c of the component 19.
  • the compressor is assembled by inserting the crankshaft (6) before closing the crankcase with the closure component 19 and securing same with the five spaced retaining bolts such as 22 inserted in respective tapped holes.
  • Pistons with connecting rods are then lowered in the respective cylinder bores 14 and 15 for connection via connection rods (not shown) to crank pins 16 and 17 in a conventional manner employing access via respective cover plates 3a and 3b of the crankcase.
  • the release clutch 12 is then installed to drivingly engage the drive-end of the crankshaft via splines or a key (not shown).
  • the compressor described in the foregoing is flange-mounted to an internal combustion engine of a motor vehicle and operates in known manner to supply compressed air to one or more reservoirs of a vehicle braking and or other system of a vehicle.
  • the governor provides a control pressure signal to the release clutch to disengage the compressor drive from the engine until a lower cut in pressure is sensed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Claims (5)

  1. Compresseur à gaz comprenant un logement (1) et une paroi à mouvement alternatif ladite paroi pouvant se déplacer dans ledit logement (1) pour augmenter et réduire cycliquement le volume d'une chambre de compression (14, 15) pour produire et délivrer du gaz sous pression, ladite paroi étant connectée à un palier excentrique (16) d'un arbre (6) pouvant tourner dans un palier principal (8) du logement, ledit arbre pouvant être entraíné par le biais d'un moyen d'accouplement flexible (12), ledit moyen d'accouplement flexible pouvant être désengagé par un actionneur (24, 27) pour interrompre le fonctionnement du compresseur, caractérisé en ce que ledit actionneur est situé dans un ensemble qui comprend un couvercle d'extrémité du côté menant (19) du compresseur entourant ledit palier principal (8), le couvercle d'extrémité (19) et ledit actionneur (24, 27) étant contenu au moins partiellement dans une sailli.e de ladite chambre de compression (14, 15) dans la direction du mouvement de ladite paroi.
  2. Compresseur à gaz selon la revendication 1, caractérisé en ce que ledit moyen d'accouplement comprend un engrenage à friction.
  3. Compresseur à gaz selon la revendication 1, caractérisé en ce que ledit couvercle d'extrémité du côté menant (19) ferme une ouverture (20) du logement à travers laquelle ledit arbre (6) peut être fixé au logement.
  4. Compresseur à gaz selon la revendication 1, 2 ou 3, caractérisé en ce que ledit logement à un orifice de pression de commande (31) et ledit ensemble a un orifice de pression de commande (19b) lesdits orifices étant interconnectés par un joint de tiroir (32).
  5. Compresseur à gaz selon la revendication 1, 2, 3 ou 4, caractérisé en ce que ledit logement à un orifice de pression de commande (31) et ledit ensemble a un orifice de pression de commande (19b) lesdits orifices étant interconnectés par l'intermédiaire d'un élément qui établit une étanchéité sur la circonférence (43) avec ledit logement et par l'intermédiaire d'un joint d'extrémité (44) avec ledit ensemble.
EP97310001A 1996-12-13 1997-12-11 Compresseur avec embrayage Expired - Lifetime EP0853200B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9625938 1996-12-13
GBGB9625938.7A GB9625938D0 (en) 1996-12-13 1996-12-13 Clutch driven gas compressor

Publications (3)

Publication Number Publication Date
EP0853200A2 EP0853200A2 (fr) 1998-07-15
EP0853200A3 EP0853200A3 (fr) 1999-05-06
EP0853200B1 true EP0853200B1 (fr) 2003-06-25

Family

ID=10804414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97310001A Expired - Lifetime EP0853200B1 (fr) 1996-12-13 1997-12-11 Compresseur avec embrayage

Country Status (3)

Country Link
EP (1) EP0853200B1 (fr)
DE (1) DE69723042T2 (fr)
GB (1) GB9625938D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071185A2 (fr) 2006-12-15 2008-06-19 Kwd Kupplungswerk Dresden Gmbh Embrayage multidisques à pression de ressort pour compresseurs

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012220342B4 (de) * 2012-11-08 2015-12-31 Zf Friedrichshafen Ag Dichtungselement für Druckfluidbetätigungseinrichtung
DE102018119924A1 (de) * 2018-08-16 2020-02-20 Voith Patent Gmbh Hubkolbenkompressor
DE102018128111A1 (de) 2018-11-09 2020-05-14 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Gehäuse sowie Kompressor und Kompressor-Einheit mit einem solchen Gehäuse

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2911085A1 (de) * 1979-03-21 1980-09-25 Knorr Bremse Gmbh Regeleinrichtung fuer einen kompressor, insbesondere zum betrieb in kraftfahrzeugen
DE3445743A1 (de) * 1984-12-14 1986-06-19 Knorr-Bremse AG, 8000 München Vorrichtung zum ausruecken einer einen motorischen antrieb mit einem kompressor verbindenden kupplung
IT206892Z2 (it) * 1985-12-16 1987-10-12 Baruffaldi Frizioni Spa Frizione compatta a disinnesto comandato,particolarmente per compressori per veicoli
EP0270713B1 (fr) * 1986-12-12 1991-08-28 Bendix Limited Ensemble de compresseur
GB2182732A (en) * 1985-11-07 1987-05-20 Bendix Ltd Clutch-driven compressor assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071185A2 (fr) 2006-12-15 2008-06-19 Kwd Kupplungswerk Dresden Gmbh Embrayage multidisques à pression de ressort pour compresseurs
DE112007003348B4 (de) * 2006-12-15 2011-04-07 Kwd Kupplungswerk Dresden Gmbh Kompressor mit einer Federdruck-Lamellenkupplung

Also Published As

Publication number Publication date
EP0853200A2 (fr) 1998-07-15
GB9625938D0 (en) 1997-01-29
EP0853200A3 (fr) 1999-05-06
DE69723042T2 (de) 2004-04-22
DE69723042D1 (de) 2003-07-31

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