EP0527701B1 - Compresseur à piston pour comprimer un gaz sans lubrification - Google Patents

Compresseur à piston pour comprimer un gaz sans lubrification Download PDF

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Publication number
EP0527701B1
EP0527701B1 EP92810552A EP92810552A EP0527701B1 EP 0527701 B1 EP0527701 B1 EP 0527701B1 EP 92810552 A EP92810552 A EP 92810552A EP 92810552 A EP92810552 A EP 92810552A EP 0527701 B1 EP0527701 B1 EP 0527701B1
Authority
EP
European Patent Office
Prior art keywords
piston rod
ring
oil
piston
crosshead
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
EP92810552A
Other languages
German (de)
English (en)
Other versions
EP0527701A1 (fr
Inventor
Hans Meier
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.)
Burckhardt Compression AG
Original Assignee
Maschinenfabrik Burckhardt AG
Maschinenfabrik Sulzer Burckhardt AG
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 Maschinenfabrik Burckhardt AG, Maschinenfabrik Sulzer Burckhardt AG filed Critical Maschinenfabrik Burckhardt AG
Publication of EP0527701A1 publication Critical patent/EP0527701A1/fr
Application granted granted Critical
Publication of EP0527701B1 publication Critical patent/EP0527701B1/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
    • 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
    • F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
    • F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/902—Seal for sterling engine

Definitions

  • the invention relates to a piston compressor for oil-free compression of a gas, in particular oxygen, with at least one free-floating piston which is connected via a piston rod to a crosshead, the piston rod sliding on the crosshead side in a guide bearing and on the cylinder side in a stuffing box.
  • the invention has for its object to improve a piston compressor of the type mentioned in such a way that no more oil gets into the area of the stuffing box, be it by advancing as an oil film on the piston rod or by spinning off oil drops.
  • a ring made of porous material is arranged on the piston rod between the guide bearing and the stuffing box and in that the ring has a circumferential groove intended for receiving a tube spring, the depth of which - measured from the outside transversely to the longitudinal axis of the piston rod - at least is as large as the outside diameter of one turn of the tube spring.
  • the ring according to the invention is made of porous material, oil penetrating the piston rod is sucked up by the ring and stored in it. Before the ring is saturated with oil, it is removed from the ring by washing and the ring is then reinstalled. Another option is to use oil replace the enriched ring with a dry ring. Since only small amounts of oil are on the way, it takes a long time until the ring volume is saturated. The claimed depth of the circumferential groove ensures that the hose spring no longer protrudes from the outer surface of the ring, so that any oil drops that accumulate on the windings of the hose spring remain within the circumferential groove and cannot be thrown out of the area of the ring.
  • the piston compressor of the vertical type intended for compressing oxygen for example, has a crankcase 1 in which a crankshaft (not shown in more detail) is mounted, the crank pin 2 of which is articulatedly connected to a push rod 3.
  • the upper end of the push rod 3 is articulated with a pin 4, which is part of a vertically straight up and down movable crosshead 5.
  • the lower end of a piston rod 6 is attached, which carries a piston 7 at its upper end.
  • the piston rod 6 slides in a guide bearing 8 which is fastened to the crankcase 1 at the upper end thereof and which is provided with oil scraper rings 9 at its end protruding from the crankcase.
  • the piston 7 is located in a cylinder housing 10, which is provided at its lower end with a stuffing box 11, which closely surrounds the piston rod 6 - as well as the guide bearing 8 and the oil scraper rings 9. In this way, the piston 7 is freely suspended in the cylinder housing 10.
  • the cylindrical outer surface of the piston 7 is provided with labyrinth grooves 7 ', so that the piston 7 moves up and down during operation of the compressor without touching the adjacent cylinder surface 10'.
  • a spacer 12 is provided between the cylinder housing 10 and the crankcase 1, which connects the two housings 1 and 10.
  • an essentially rectangular cross section is arranged on the piston rod 6, which, as shown in FIG. 2, sits firmly on the piston rod 6 and moves together with it during the operation of the compressor.
  • a constriction 14 is worked into the piston rod 6, into which the ring 15 projects with its correspondingly shaped inner surface.
  • the ring 15 is pressed against the piston rod 6 by a hose spring 13.
  • the ring 15 is made of porous material, which is able to suck up oil droplets penetrating from the piston rod 6 from the bottom upwards and to store them.
  • Possible materials for this purpose are, for example, a plastic made of polyurethane having a porous structure or a body bonded from aluminum grains with a plastic as a binder, or also a porous body made of cellulose. It is essential that the ring 15 remains stable in its shape both in the installed oil-free state and in the state soaked with oil.
  • the ring 15 has on its outside a circumferential groove 16, the depth t - measured transversely to the longitudinal axis 6 'of the piston rod - is at least as large as the winding diameter d of the tube spring 13.
  • This dimensioning specification is achieved that the hose spring 13 does not protrude from the outer circumferential surface of the ring 15.
  • the ring is either not cut open across its circumference or cut open once so that it can be elastically expanded during assembly, or it consists of at least two ring segments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Claims (1)

  1. Compresseur à piston pour la compression d'un gaz, en particulier d'oxygène, sans infiltration d'huile, comprenant au moins un piston (7) monté librement et relié par une tige (6) à une crosse (5), la tige (6) du piston glissant du côté de la crosse dans un coussinet de guidage (8) et, du côté du cylindre, dans un presse-étoupe (11), caractérisé en ce qu'un anneau (15) en matériau poreux est disposé sur la tige (6) du piston entre le coussinet de guidage (8) et le presse-étoupe (11) et en ce que l'anneau (15) comporte une gorge destinée à loger un ressort tubulaire (13) et dont la profondeur (t) - mesurée de l'extérieur perpendiculairement à l'axe longitudinal (6') de la tige (6) du piston - est au moins aussi grande que le diamètre extérieur (d) d'une spire du ressort tubulaire (13).
EP92810552A 1991-08-12 1992-07-20 Compresseur à piston pour comprimer un gaz sans lubrification Expired - Lifetime EP0527701B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH238191 1991-08-12
CH2381/91 1991-08-12

Publications (2)

Publication Number Publication Date
EP0527701A1 EP0527701A1 (fr) 1993-02-17
EP0527701B1 true EP0527701B1 (fr) 1995-01-25

Family

ID=4232450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810552A Expired - Lifetime EP0527701B1 (fr) 1991-08-12 1992-07-20 Compresseur à piston pour comprimer un gaz sans lubrification

Country Status (7)

Country Link
US (1) US5199345A (fr)
EP (1) EP0527701B1 (fr)
JP (1) JP3241445B2 (fr)
AT (1) ATE117770T1 (fr)
BR (1) BR9202945A (fr)
CA (1) CA2075759C (fr)
DE (1) DE59201272D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272492B (en) * 1992-11-11 1996-05-01 Dowty Defence & Air Syst Gas supply apparatus
GB9501080D0 (en) * 1995-01-19 1995-03-08 Carding Spec Canada Piston rod bearing assembly of reciprocating piston engine
AT409291B (de) * 1999-06-16 2002-07-25 Hoerbiger Ventilwerke Gmbh Abstreifanordnung
KR101347363B1 (ko) 2012-02-23 2014-01-16 삼성중공업 주식회사 해저 파이프라인 부설용 부력장치 및 부력장치의 클램핑장치 작동방법
CN104389761A (zh) * 2014-11-11 2015-03-04 固耐重工（苏州）有限公司 一种迷宫压缩机活塞杆导向装置
CN105673447B (zh) * 2016-03-24 2018-04-06 沈阳透平机械股份有限公司 一种迷宫压缩机活塞的导向机构

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA513421A (fr) * 1955-05-31 Hellingman Evert Dispositif de commande de lubrification
US1960927A (en) * 1932-02-05 1934-05-29 Mcdonald Mfg Co A Y Stuffing box for reciprocating pumps and the like
US2204374A (en) * 1938-06-04 1940-06-11 Ingersoll Rand Co Compressor
DE1083480B (de) * 1953-05-26 1960-06-15 Sulzer Ag Kolbenkompressor
US2878990A (en) * 1953-10-30 1959-03-24 Sulzer Ag Upright piston compressor
DE1132681B (de) * 1958-10-24 1962-07-05 Linde Eismasch Ag Stopfbuechsenanordnung fuer die Kolbenstange von Trockenlaufverdichter
US4140442A (en) * 1977-03-14 1979-02-20 Perfect Pump Co., Inc. High pressure pump
EP0424310B1 (fr) * 1989-10-18 1993-05-12 Maschinenfabrik Sulzer-Burckhardt AG Compresseur à pistons avec palier-guides pour les bielles

Also Published As

Publication number Publication date
JPH05195956A (ja) 1993-08-06
EP0527701A1 (fr) 1993-02-17
ATE117770T1 (de) 1995-02-15
CA2075759A1 (fr) 1993-02-13
CA2075759C (fr) 1995-10-17
BR9202945A (pt) 1993-03-30
JP3241445B2 (ja) 2001-12-25
US5199345A (en) 1993-04-06
DE59201272D1 (de) 1995-03-09

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