EP0640764B1 - Kolbenkompressor - Google Patents

Kolbenkompressor Download PDF

Info

Publication number
EP0640764B1
EP0640764B1 EP93810606A EP93810606A EP0640764B1 EP 0640764 B1 EP0640764 B1 EP 0640764B1 EP 93810606 A EP93810606 A EP 93810606A EP 93810606 A EP93810606 A EP 93810606A EP 0640764 B1 EP0640764 B1 EP 0640764B1
Authority
EP
European Patent Office
Prior art keywords
piston
crosshead
rod
piston rod
cylinder
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
EP93810606A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0640764A1 (de
Inventor
Oskar Habegger
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
Priority to ES93810606T priority Critical patent/ES2095622T3/es
Priority to EP93810606A priority patent/EP0640764B1/de
Priority to DE59304906T priority patent/DE59304906D1/de
Priority to AT93810606T priority patent/ATE146852T1/de
Priority to JP6150245A priority patent/JPH07139465A/ja
Priority to US08/282,396 priority patent/US5467687A/en
Priority to CA002129768A priority patent/CA2129768C/en
Priority to AU71401/94A priority patent/AU675340B2/en
Priority to CZ19942031A priority patent/CZ286732B6/cs
Priority to BR9403323A priority patent/BR9403323A/pt
Publication of EP0640764A1 publication Critical patent/EP0640764A1/de
Application granted granted Critical
Publication of EP0640764B1 publication Critical patent/EP0640764B1/de
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
    • F04B39/0005—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 adaptations of pistons
    • F04B39/0022—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 adaptations of pistons piston rods
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18208—Crank, pitman, and slide

Definitions

  • the invention relates to a piston compressor with at least one cylinder and a piston guided in a contactless manner therein, which is connected to a crosshead via a piston rod.
  • connection of the piston rod to the crosshead either consists of two nuts screwed onto the piston rod, which are screwed together and clamp a correspondingly thick wall part of the crosshead body between them.
  • Another possible connection is to provide an elongated hole transversely through the end of the piston rod and the cross-head body receiving this end, into which two wedges abutting one another with their wedge surfaces are hammered.
  • Both embodiments have the disadvantage that, considering the type of connection, the crosshead body must be made longer than would be necessary considering the length of its running surface in the crosshead bearing. The distance between the crosshead pin and the center of the piston is relatively large. This means that the overall length of the compressor is large and that the piston guided without contact tends to have relatively large radial movements.
  • the invention has for its object to improve a compressor of the type mentioned in such a way that the overall length of the compressor is shortened so that the occurrence of movements of the piston transverse to its normal movement are considerably reduced.
  • the piston rod consists of a tube extending between the crosshead and the piston and that an expandable tie rod is arranged in this tube, which pulls the crosshead and the piston non-positively against the tube under prestress.
  • the piston rod is now in the form of a tube, the diameter of the piston rod is substantially increased, which gives greater rigidity and practically eliminates the tendency for the piston to move transversely.
  • the new compressor does not have a piston rod guide bearing, as was previously necessary. Because the connection between the tubular piston rod and the crosshead is made with the aid of a prestressed tie rod, the piston rod can be made shorter than before, which, together with the omission of a piston rod guide bearing, results in a shorter overall length for the compressor.
  • the invention can be applied both to piston compressors with vertical piston movement and to those with horizontal piston movement. In the latter case, there is the advantage that, owing to the enlarged diameter of the tubular piston rod, there is practically no deflection of the piston under its own weight.
  • the piston compressor has a crankcase 1, which is only partially shown and in which a crankshaft, not shown, is mounted in a known manner.
  • a push rod 4 is connected to a crank pin 3 of the crankshaft, which is articulated at its right end in FIG. 1 to a pin 5 which is part of a cross head 6 that can be moved horizontally in a straight line back and forth.
  • the crosshead 6 is mounted in a liquid-cooled housing 7 which is flanged to the crankcase 1.
  • a tie rod 9 is attached in a manner described in more detail below, which extends through a piston rod 8 in the form of a tube and a piston 10 and which holds the three components 6, 8 and 10 together.
  • the piston 10 is guided in a liquid-cooled cylinder 11 without contact, but this is not shown in FIGS. 1 and 2.
  • the piston rod 8 is surrounded by an oil scraper device 19, which prevents lubricating oil from the crankcase 1 from reaching the cylinder 11 via the crosshead 6 and the piston rod.
  • the cylinder 11 is closed at its right end in FIG. 1 by a liquid-cooled cylinder cover 12.
  • a liquid-cooled cylinder cover 12 In the cylinder 11 is between the Piston 10 and the cylinder cover 12 of the working space 13, in which gas is sucked in during operation of the compressor and then compressed.
  • the suction and pressure valves are not shown in the drawing.
  • the piston rod 8 At the left end of the cylinder 11 in FIG. 1, the piston rod 8 is surrounded in a known manner by annular sealing elements 14, which are fixed in the cylinder 11 by means of a stuffing box gland 15.
  • the tie rod 9 extending through the piston rod 8 and the piston 10 has at its left end a threaded section 17 which is screwed into a suitable threaded section of a hub-like part 18 of the crosshead 6.
  • the hub-like part 18 is connected via a plurality of ribs 20 to a cylindrical section 21 of the crosshead sliding in the housing 7.
  • the end of the hub-like part 18 facing the piston rod 8 is thickened in a flange-like manner and forms with its end face 18 'a support surface for the piston rod 8.
  • the tubular piston rod 8 is provided at its end facing the part 18 with a threaded ring 38 which is screwed into the tube and abuts with a flange 8 'on the one hand on the end face of the tube and on the other hand on the support surface 18'. With its central bore, the threaded ring 38 rests on a thickened section 22 of the tie rod 9. In the same way, a threaded ring 38 ′ is screwed into the other tube end of the piston rod 8, and the central bore rests on a thickened section 23 of the tie rod 9.
  • the flange of the threaded ring 38 ' projects here between the right end face of the piston rod 8 in FIG. 2 and the left end face of the piston 10.
  • the piston 10 is composed of three parts 10 ', 10''and10'''.
  • the part 10 ''' forms the piston skirt and has on its outer surface known, not shown labyrinth grooves which together result in a contactless labyrinth seal with the surrounding cylindrical surface 11 'of the cylinder 11.
  • the jacket part 10 '''of the piston 10 is held between two shoulders of the inside piston parts 10' and 10 ''.
  • the two parts 10 'and 10'' have a central bore, the inner diameter of which is larger than the diameter of the thickened section 23 of the tie rod 9.
  • the parts 10' and 10 '' rest on correspondingly thickened sections 24 and 25 of the Tie rod 9, wherein at the left end of section 24 a shoulder 24 'is formed, which cooperates with a somewhat recessed counter surface on the flange of the threaded ring 38'.
  • the part 10 ′′ of the piston 10 facing the working space 13 has at its right end in FIG. 2 a cylindrical recess 26 which forms a shoulder 26 ′ and serves to receive a nut 28 which is screwed onto a threaded section 27 of the tie rod 9 is.
  • the threaded portion 27 protrudes somewhat from the right end face of the piston 10.
  • This protruding threaded section 27 serves to receive a hydraulic clamping device 30.
  • the clamping device consists of a central bolt-like part 31, which is screwed onto the threaded section 27 with a nut-like end section and on which a clamping piston 32 is arranged, which is mounted on the part by means of a nut 33 31 is fixed.
  • the tensioning piston 32 projects into a tensioning cylinder 34 which surrounds it and which is supported on the right end face of the part 10 ′′ via two stilts 34 ′, of which only one can be seen in FIG.
  • a pressure chamber 35 is provided between the tensioning piston 32 and the tensioning cylinder 34, into which a channel 36 opens, to which a pressure medium supply 37 is connected.
  • a cylindrical rod 29 is provided which can be inserted into correspondingly inclined blind bores 28 'distributed over the circumference of the nut.
  • the crosshead 6, the piston rod 8 and the piston 10 are now held together by the extended tie rod under pre-tension. If necessary, the described stretching process can be repeated with the aid of the tensioning device 30 until the desired preload in the tie rod and in the piston rod is reached. After loosening the hydraulic clamping device 30 from the threaded portion 27 and removing the rod 29, the cylinder cover 12 is in Cylinder 11 mounted and the compressor can be started.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Clamps And Clips (AREA)
EP93810606A 1993-08-25 1993-08-25 Kolbenkompressor Expired - Lifetime EP0640764B1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
ES93810606T ES2095622T3 (es) 1993-08-25 1993-08-25 Compresor de embolo.
EP93810606A EP0640764B1 (de) 1993-08-25 1993-08-25 Kolbenkompressor
DE59304906T DE59304906D1 (de) 1993-08-25 1993-08-25 Kolbenkompressor
AT93810606T ATE146852T1 (de) 1993-08-25 1993-08-25 Kolbenkompressor
JP6150245A JPH07139465A (ja) 1993-08-25 1994-06-30 ピストン式圧縮機
US08/282,396 US5467687A (en) 1993-08-25 1994-07-28 Piston compressor
CA002129768A CA2129768C (en) 1993-08-25 1994-08-09 Piston compressor
AU71401/94A AU675340B2 (en) 1993-08-25 1994-08-23 A piston compressor
CZ19942031A CZ286732B6 (en) 1993-08-25 1994-08-23 Piston compressor
BR9403323A BR9403323A (pt) 1993-08-25 1994-08-24 Compressor de êmbolo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93810606A EP0640764B1 (de) 1993-08-25 1993-08-25 Kolbenkompressor

Publications (2)

Publication Number Publication Date
EP0640764A1 EP0640764A1 (de) 1995-03-01
EP0640764B1 true EP0640764B1 (de) 1996-12-27

Family

ID=8215018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810606A Expired - Lifetime EP0640764B1 (de) 1993-08-25 1993-08-25 Kolbenkompressor

Country Status (10)

Country Link
US (1) US5467687A (pt)
EP (1) EP0640764B1 (pt)
JP (1) JPH07139465A (pt)
AT (1) ATE146852T1 (pt)
AU (1) AU675340B2 (pt)
BR (1) BR9403323A (pt)
CA (1) CA2129768C (pt)
CZ (1) CZ286732B6 (pt)
DE (1) DE59304906D1 (pt)
ES (1) ES2095622T3 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732668A (en) * 1996-12-20 1998-03-31 Di Stefano; Alfonso Siamese piston arrangement internal combustion engine
WO2005114835A2 (en) 2004-05-21 2005-12-01 Lund Morten A Air compression apparatus and method of use
US8657588B2 (en) * 2006-11-08 2014-02-25 Us Airflow Compression apparatus
US8186976B2 (en) 2006-11-08 2012-05-29 Us Airflow Combination compressor and vacuum pump apparatus and method of use
FR2976615B1 (fr) * 2011-06-16 2015-04-10 Thermodyn Structure de rotor comprenant un dispositif de tension hydraulique interne
RU2497024C1 (ru) * 2012-04-03 2013-10-27 Общество с ограниченной ответственностью "Краснодарский Компрессорный Завод" Шток поршневой
US9765865B2 (en) * 2013-02-07 2017-09-19 Medinol Ltd. Variable linear motor
ITCO20130055A1 (it) * 2013-10-29 2015-04-30 Nuovo Pignone Srl Assieme testacroce-asta di pistone per compressore alternativo
US10590922B2 (en) * 2015-08-20 2020-03-17 Haug Sauer Kompressoren Ag Reciprocating piston compressor, a retrofit kit for a reciprocating piston compressor and the use of a connecting rod in a reciprocating piston compressor
US10247184B2 (en) * 2016-09-29 2019-04-02 Forum Us, Inc. Pump system
US20220128053A1 (en) * 2019-06-28 2022-04-28 Quidnet Energy Inc. Reversible Reciprocating Pump

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520853A (en) * 1920-06-30 1924-12-30 Electric Boat Co Air-compressor piston
US2000970A (en) * 1934-11-15 1935-05-14 Ingersoll Rand Co Piston assembly
US2606531A (en) * 1947-03-10 1952-08-12 Hedges Motor Company Internal-combustion engine
US4189958A (en) * 1978-01-09 1980-02-26 Anton Braun Compressor
US4338037A (en) * 1980-08-08 1982-07-06 The Yorde Machine Products Company Multiple jackscrew rod to crosshead mounting
US4494415A (en) * 1982-03-25 1985-01-22 Hydra-Rig, Incorporated Liquid nitrogen pump
IT1229654B (it) * 1989-04-21 1991-09-06 Nuovo Pignone Spa Testa a croce perfezionata per macchine alternative a stantuffo, in particolare per compressori alternativi.

Also Published As

Publication number Publication date
AU7140194A (en) 1995-03-09
CA2129768C (en) 1998-08-18
ATE146852T1 (de) 1997-01-15
CA2129768A1 (en) 1995-02-26
JPH07139465A (ja) 1995-05-30
BR9403323A (pt) 1995-04-11
CZ286732B6 (en) 2000-06-14
US5467687A (en) 1995-11-21
EP0640764A1 (de) 1995-03-01
AU675340B2 (en) 1997-01-30
ES2095622T3 (es) 1997-02-16
DE59304906D1 (de) 1997-02-06
CZ203194A3 (en) 1995-03-15

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