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EP0093705A1 - Compresseur à piston - Google Patents

Compresseur à piston Download PDF

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Publication number
EP0093705A1
EP0093705A1 EP19830890067 EP83890067A EP0093705A1 EP 0093705 A1 EP0093705 A1 EP 0093705A1 EP 19830890067 EP19830890067 EP 19830890067 EP 83890067 A EP83890067 A EP 83890067A EP 0093705 A1 EP0093705 A1 EP 0093705A1
Authority
EP
European Patent Office
Prior art keywords
lifting
piston
cylinder
closure piece
suction
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.)
Granted
Application number
EP19830890067
Other languages
German (de)
English (en)
Other versions
EP0093705B1 (fr
Inventor
Albert Dipl.-Ing. Riedel
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.)
Hoerbiger Ventilwerke GmbH and Co KG
Original Assignee
Hoerbiger Ventilwerke GmbH and Co KG
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 Hoerbiger Ventilwerke GmbH and Co KG filed Critical Hoerbiger Ventilwerke GmbH and Co KG
Publication of EP0093705A1 publication Critical patent/EP0093705A1/fr
Application granted granted Critical
Publication of EP0093705B1 publication Critical patent/EP0093705B1/fr
Expired 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
    • F04B39/08—Actuation of distribution members
    • 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
    • F04B49/22—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 by means of valves
    • F04B49/24—Bypassing
    • F04B49/243—Bypassing by keeping open the inlet valve

Definitions

  • the invention relates to a piston compressor with a suction valve arranged between the cylinder and the cylinder head and a device for lifting the closure piece of the same from the valve seat for regulating the delivery quantity, the lifting device acting on the closure piece with at least one lifting pin penetrating a through channel of the seat.
  • the closure piece of the suction valve is actuated by a gripper or by lifting pins which are actuated pneumatically, hydraulically, electrically or also manually by means of a mechanical adjusting device ah pressed the catcher of the suction valve and held it in a stable position.
  • These control devices have therefore only been used for compressors with relatively complex suction valves.
  • the known lift control was also not provided because the relatively simple lamella valves used there do not have their own catcher to which the closure piece of the suction valve could be pressed.
  • the invention has for its object to provide a piston compressor with a lift control that can also be used for small compressors without increasing the harmful space.
  • the invention is based on the piston compressor with lifting device mentioned at the beginning and consists in that the lifting pins are provided in areas of the closure piece which can be freely moved into the cylinder without a catch stop associated with them.
  • the lifting device When the lifting device is actuated, the closure piece of the suction becomes ventila kept open in the cylinder space without a separate catcher in the area of the lifting pins.
  • the lifting device provided according to the invention is therefore of simple construction and does not cause an increase in the clearance of the piston compressor.
  • the closure piece which is preferably designed as a flexible tongue or ring plate, can be displaced by the lifting pins into the range of movement of the piston and can be pushed back against the valve seat through the piston head with each piston stroke.
  • this arrangement does not cause any damage to the valve or the lifting device, and there are no other disadvantages.
  • the closure piece protrudes only a few percent of the piston stroke into the range of motion of the piston, so that when it hits the closure piece it is already near its top dead center and moves correspondingly slowly.
  • the closure piece, together with the lifting pins acting on it has a relatively small mass which must be accelerated when pushed back.
  • an end stop can be provided for the lifting pins, which limits the displacement of the lifting pins in the lifting direction.
  • the lifting device provided according to the invention can be actuated pneumatically, hydraulically, electrically or also via a mechanical actuating device, for example by hand. It has proved advantageous, between the ex - lift pins and turn on the this-adjust in the lifting actuator, such as a pneumatic or is hydraulic pistons, springs. These springs enable the lifting pins to be pushed back against the cylinder head of the compressor without adjusting the actuating device, which is particularly advantageous when the piston hits the closure piece of the suction valve in its upper end position.
  • the holding pins are actuated by means of an electromagnet, the interposition of a spring is not necessary, however, because the magnet armature can be detached from the holding magnet by the restoring forces acting on the lifting pin.
  • the holding magnet can also form an end stop for limiting the lifting movement of the lifting device.
  • FIG. 1 An embodiment of the piston compressor according to the invention with a lifting device is shown in the drawing. This shows an axial central section through the upper part of the compressor with the lifting device.
  • the compressor shown has a cylinder 1, in the cylinder space 2 of which a piston 2 is displaceable.
  • a cylinder head 4 is placed on the end face of the cylinder 1 and closes off the cylinder chamber 2 on the side opposite the piston.
  • a valve seat plate 5 is clamped between the cylinder 1 and the cylinder head 4 with the interposition of seals, in which through-channels are provided, etc. a suction channel 6 and a pressure channel 7.
  • the two through channels 6,7 are controlled by valve closure pieces.
  • the suction channel 6 is assigned a suction lamella 8 which is clamped at one end between the cylinder 1 and the valve seat plate 5 and has a stop lug 9 at the other end which projects into a recess 10 in the end face of the cylinder 1.
  • the pressure valve consists of a pressure plate 11 and a catcher 12, which are arranged in the pressure chamber 13 of the cylinder head 4.
  • the suction valve is provided with a device for lifting its closure piece from the valve seat.
  • the lifting device consists of a lifting pin 14, which acts on the suction lamella 8 at one end and has a head 15 at the other end, which is displaceably guided in the cavity 16 of a lifting piston 17.
  • a spring 18 loads the lifting pin 14 in the direction against the suction lamella 8.
  • the lifting piston 17 is in one Cylinder bore 20 out and acted upon by a return spring 21.
  • the cylinder bore 20 is closed by a cover 22, in which a connection bore 23 is provided for the supply of the pressure medium for actuating the lifting piston 17.
  • the suction line 24 opens into the cylinder bore 20 and the pressure line for the discharge of the compressed medium extends laterally from the pressure chamber 13 and cannot be seen in the sectional drawing shown.
  • the suction lamella 8 is lifted by the lifting pin 14 from the suction channel 6 and forcibly kept open, so that the medium sucked in is pushed back into the suction line 24 through the open suction channel 6.
  • the lifting piston 17 is acted upon by a pressure medium supplied through the connection bore 23 and thereby displaced against the force of the return spring 21 into the lower end position shown in the drawing.
  • the spring 18 thereby pushes the lifting pin 14 down and holds its head 15 at the end stop 19.
  • the suction lamella 8 is thereby held in the open position, the stop lug 9 resting against the base of the recess 10.
  • the suction lamella 8 lies in the range of movement of the piston 3.
  • the piston head 25 hits the suction lamella 8 and pushes it together with the lifting pin 14 against the cylinder head 4.
  • the spring 18 enables this displacement of the lifting pin 14, even if the lifting piston 17 is held in its lower end position by the pressure medium acting on it.
  • the suction channel 6 is almost completely closed.
  • the lifting pin 14 under the action of its spring 18, moves the suction lamella 8 back into the open position shown. If the compressor is to deliver again, the cylinder bore 20 is relieved of pressure, whereupon the lifting piston 17 is displaced into the upper end position by the return spring 21 and takes the lifting pin 14 with it.
  • the suction lamella 8 can then work freely again.
  • the suction lamella 8 can be tongue-shaped. However, an annular suction lamella with one or more stop lugs can also be provided.
  • the lifting device can then. have two or more lifting pins which can be actuated by their own lifting piston or else by a common lifting piston. Instead of the lifting piston shown in the drawing, an electromagnet can also be provided for actuating the lifting pin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
EP19830890067 1982-05-04 1983-04-28 Compresseur à piston Expired EP0093705B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT173582A AT378409B (de) 1982-05-04 1982-05-04 Kolbenverdichter
AT1735/82 1982-05-04

Publications (2)

Publication Number Publication Date
EP0093705A1 true EP0093705A1 (fr) 1983-11-09
EP0093705B1 EP0093705B1 (fr) 1987-03-25

Family

ID=3519868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830890067 Expired EP0093705B1 (fr) 1982-05-04 1983-04-28 Compresseur à piston

Country Status (3)

Country Link
EP (1) EP0093705B1 (fr)
AT (1) AT378409B (fr)
DE (1) DE3370517D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735802A1 (de) * 1986-10-23 1988-05-05 Puska Compresores Sa Ansaugventil fuer druckluftkompressoren
WO2000070226A1 (fr) * 1999-05-17 2000-11-23 Empresa Brasileira De Compressores S.A. - Embraco Compresseur a mouvement alternatif pourvu d'un moteur lineaire
DE4119731B4 (de) * 1990-06-19 2004-03-11 Empresa Brasileira De Compressores S.A.- Embraco Ventilanordnung für einen hermetisch dichten Kompressor, insbesondere einen Kühlkompressor
WO2013053412A1 (fr) * 2011-10-13 2013-04-18 Wabco Gmbh Culasse pour compresseur
CN107917079A (zh) * 2017-11-14 2018-04-17 江西风石压缩机有限公司 一种螺杆空压机进气阀

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1462301A (en) * 1923-07-17 Feeder-ice w
US1741426A (en) * 1926-10-27 1929-12-31 Pennsylvania Pump & Compressor Valve-lifting device
US2095842A (en) * 1935-06-11 1937-10-12 Gen Electric Compressor valve
FR1371889A (fr) * 1963-07-24 1964-09-11 Perfectionnements aux compresseurs d'air
DE3143702A1 (de) * 1980-08-15 1982-05-27 Tokico Ltd., Kawasaki, Kanagawa Kompressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1462301A (en) * 1923-07-17 Feeder-ice w
US1741426A (en) * 1926-10-27 1929-12-31 Pennsylvania Pump & Compressor Valve-lifting device
US2095842A (en) * 1935-06-11 1937-10-12 Gen Electric Compressor valve
FR1371889A (fr) * 1963-07-24 1964-09-11 Perfectionnements aux compresseurs d'air
DE3143702A1 (de) * 1980-08-15 1982-05-27 Tokico Ltd., Kawasaki, Kanagawa Kompressor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735802A1 (de) * 1986-10-23 1988-05-05 Puska Compresores Sa Ansaugventil fuer druckluftkompressoren
DE4119731B4 (de) * 1990-06-19 2004-03-11 Empresa Brasileira De Compressores S.A.- Embraco Ventilanordnung für einen hermetisch dichten Kompressor, insbesondere einen Kühlkompressor
WO2000070226A1 (fr) * 1999-05-17 2000-11-23 Empresa Brasileira De Compressores S.A. - Embraco Compresseur a mouvement alternatif pourvu d'un moteur lineaire
US6644945B2 (en) 1999-05-17 2003-11-11 Empresa Brasileira De Compressores S.A. -Embraco Valve arrangement for limiting piston stroke collisions in a reciprocating compressor with a linear motor
WO2013053412A1 (fr) * 2011-10-13 2013-04-18 Wabco Gmbh Culasse pour compresseur
CN103703250A (zh) * 2011-10-13 2014-04-02 威伯科有限公司 用于压缩机的气缸盖
JP2014528546A (ja) * 2011-10-13 2014-10-27 ヴアブコ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツングＷＡＢＣＯ ＧｍｂＨ 圧縮機用シリンダヘッド
CN103703250B (zh) * 2011-10-13 2016-08-17 威伯科有限公司 用于压缩机的气缸盖
CN107917079A (zh) * 2017-11-14 2018-04-17 江西风石压缩机有限公司 一种螺杆空压机进气阀

Also Published As

Publication number Publication date
AT378409B (de) 1985-08-12
ATA173582A (de) 1984-12-15
EP0093705B1 (fr) 1987-03-25
DE3370517D1 (en) 1987-04-30

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