EP0853728A1 - Procede et dispositif pour une soupape d'admission de type soupape a plaquette - Google Patents

Procede et dispositif pour une soupape d'admission de type soupape a plaquette

Info

Publication number
EP0853728A1
EP0853728A1 EP96930945A EP96930945A EP0853728A1 EP 0853728 A1 EP0853728 A1 EP 0853728A1 EP 96930945 A EP96930945 A EP 96930945A EP 96930945 A EP96930945 A EP 96930945A EP 0853728 A1 EP0853728 A1 EP 0853728A1
Authority
EP
European Patent Office
Prior art keywords
valve
plate
valve plate
catcher
electromagnet
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
EP96930945A
Other languages
German (de)
English (en)
Other versions
EP0853728B1 (fr
Inventor
Georg Samland
Christian Keller
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 EP96930945A priority Critical patent/EP0853728B1/fr
Publication of EP0853728A1 publication Critical patent/EP0853728A1/fr
Application granted granted Critical
Publication of EP0853728B1 publication Critical patent/EP0853728B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • F04B2201/00—Pump parameters
    • F04B2201/12—Parameters of driving or driven means
    • F04B2201/1208—Angular position of the shaft
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7859—Single head, plural ports in parallel
    • Y10T137/786—Concentric ports

Definitions

  • the invention relates to a method for operating a suction valve of the plate type according to the features of claim 1.
  • the invention further relates to one
  • valve plate is held with an electromagnet arranged in the catcher and that the electromagnet is triggered with a decaying alternating current to release the valve plate in order to at least partially demagnetize the valve plate, so that the valve plate is secured from the valve catcher and the valve plate does not stick to the valve seat.
  • the device according to the invention has a valve catcher with a magnetic coil, and a
  • Control device to control the solenoid and in particular to feed it with a decaying alternating current.
  • Fig. L is an exploded view of a suction valve of the plate type
  • 2 shows an electronic control device
  • 3a shows a cross section through an annular body of a valve catcher
  • 3b shows a further cross section through an annular body of a valve catcher with a damper plate and valve plate
  • 3c shows a further cross section through an annular body of a valve catcher with a damper plate and valve plate
  • Fig. 3d shows a cross section through a further embodiment of an annular body
  • FIG. 4 is a control diagram for a suction valve of the plate type
  • FIG. 5 shows a control diagram for a further method for controlling a suction valve
  • Fig. 6 shows another embodiment of a
  • a suction valve 1 comprising a valve seat 2, which is also referred to as a valve seat plate, a valve plate 3, a damper plate 4 and a catcher 6. These parts are held together by a common central screw 7.
  • the damper plate 4 has openings 4d for the passage of a spring 5 which is arranged to act between the catcher 6 and the valve plate.
  • the suction valve 1 can be with or without a damper plate 4 operate.
  • the valve catcher 6 has a plurality of ring bodies 6a, which are all connected to one another. Each ring body 6a has a groove 6b running in the circumferential direction, electrical conductors which form a magnet coil 9 being arranged in the ring groove 6b.
  • FIG 3a shows a cross section through an annular body 6a with an annular groove 6b, so that the annular body 6a takes the form of an annular body magnet yoke 6c.
  • a solenoid 9 is arranged, which a
  • the ring body 6a according to the exemplary embodiment in FIG. 3a has a cover layer 9a on the side facing the valve plate 3, which hermetically seals off the interior space occupied by the solenoid coil 9 to the outside
  • the solenoid 9 is controlled by a control device 8 so that a magnetic field is formed and the valve plate 3 is attracted to this magnetic field.
  • the valve plate 3 forms the armature of the electromagnet.
  • FIG. 2 shows the control device 8, which has a modulation device 8a, the control device via electrical lines 8b with a rotation angle sensor and via further electrical ones
  • Lines 8b is connected to the magnet coil 9.
  • FIG. 4 shows a schematic sequence of the measurement signals processed by the control device 8 and the control signals generated.
  • the time course t or the angle of rotation ⁇ of a piston compressor is shown on the horizontal axis, the position of the valve in the two in the uppermost diagram Operating states open and closed, in the middle diagram a rotation angle signal of the rotation angle sensor, and in the lower diagram the magnet current I emitted from the control device 8 to the solenoid coil.
  • a magnetization current is applied to the coil 9, which causes the Valve plate 3 is attracted by valve catcher 6 so that the valve is opened.
  • the control device 8 executes a first control phase Ila, which causes magnetization of the valve catcher 6.
  • the suction valve 1 can now be kept open over an arbitrary period of time.
  • a signal from the angle of rotation sensor 10 is preferably again used, the control device 8 receiving a second signal after this signal
  • Activation phase Ilb of the electromagnet 9 is initiated by using a modulation device 8a to generate a decaying alternating current which is applied to the solenoid 9 in order to demagnetize the valve plate 3 and / or the valve catcher 6.
  • Demagnetization prevents any holding force between the valve plate 3 and the valve catcher 6, and in particular prevents the two parts from sticking together due to remaining magnetic forces.
  • the valve plate 3 When the suction valve 1 is closed, the valve plate 3 is pressed against the valve seat 2.
  • the valve plate 3 comes to lie directly on the valve seat 2, so that there is direct contact between the two metallic components. Since the valve plate 3 has been demagnetized beforehand, there is no risk of the valve plate 3 sticking to the valve seat 2.
  • the valve seat 2, the valve plate 3 and the valve catcher 6 usually consist of a stainless steel with hard magnetic properties.
  • the inventive control method of the solenoid 9 with a modulation device 8a for demagnetization also has the advantage that demagnetization can be carried out in a very short time, which enables very fast switching times of the suction valve 1.
  • the suction valve 1 can be controlled in such a way that the valve 1 can be kept open during a predeterminable number of revolutions, for example of a compressor, and that the valve (1) can automatically, open and close for another arbitrary number of revolutions Hämodu ⁇ can be operated. It is thus possible to continuously regulate the amount of suction valve 1 delivered.
  • FIG. 5 shows a further schematic sequence of a control method and the position of the valve 1.
  • the time curve t or the angle of rotation ⁇ of a piston compressor which is equivalent to the time curve is shown on the horizontal axis.
  • the rotation angle signal 10 is measured with the rotation angle sensor 10.
  • the operating behavior of the suction valve 1 in connection with a piston compressor is known. In particular, it is known that after a rotation angle ⁇ which is fixed with respect to the rotation angle signal, the valve is fully open and the valve plate 3 bears against the valve catcher 6.
  • the solenoid 9 is only then activated by the control device 8 in a first control phase Ila with a
  • Solenoid current I is activated when valve 1 is completely open and valve plate 3 is in contact with valve catcher 6.
  • the valve plate 3 can be held very reliably and with a relatively low magnetic force.
  • a piston compressor a valve plate 3 bears against the valve catcher 6 during a rotation angle of, for example, 120 degrees.
  • the solenoid coil 9 is only supplied with a decaying alternating current by the control device 8 in a second control phase Ilb if it is ensured that the entire second control phase Ilb takes place in a rotation angle range in which the valve plate 3 operates automatically on the valve catcher 6 would concern.
  • the valve plate 3 is not prematurely separated from the area of influence of the solenoid 9 during the second activation phase 1-lb and the valve plate 3 can be completely demagnetized.
  • the suction valve 1 according to FIG. 1 can be with or without
  • Damper plate 4 can be designed. 5 was described for a suction valve 1 without a damper plate 4. However, if the suction valve 1 also has a damper plate 4, the damper plate 4 is arranged between the valve plate 3 and the valve catcher 6 in the actuation process according to FIG. 5, so that when the valve 1 is fully open, the damper plate 4 abuts the valve catcher 6 and the valve plate 3 abuts the damper plate 4. Otherwise, the control method does not change.
  • the suction valve has a damper plate 4, the damper plate, as shown in FIG. 1, consisting of a plurality of interconnected ring bodies 4a.
  • the ring body 4a is configured in accordance with the exemplary embodiment 3b in such a way that the side facing the ring body magnet yoke 6c is U-shaped. This configuration causes that Magnetic flows increasingly flow through the valve plate 3, with which the valve plate 3 can be attracted by the solenoid 9.
  • FIG. 3c shows a further exemplary embodiment of a suction valve 1 with a damper plate 4.
  • the ring body 4a of the damper plate 4 has a gap 4c, with the formation of two ring body parts 4b, as is the case here is shown in Fig. 1.
  • the gap 4c advantageously runs concentrically to the central screw 7.
  • FIG. 3d shows a further cross section through a ring body 6a, the ring body magnet yoke 6c being configured in a V-shape, so that the entire magnet coil 9 is embedded in an insulating cover layer 9a.
  • At least one solenoid coil 9 arranged in the valve catcher 6 is required.
  • a plurality of magnetic coils 9 arranged in the concentrically running annular bodies 6a are advantageously used in order to exert a greater force on the valve plate 3.
  • These solenoids 9 can be controlled by the control device 8 in such a way that all solenoids generate an equipolar magnetic field or that the adjacent solenoids generate an opposite pole magnetic field.
  • the device according to the invention for actuating a valve plate 3 of a suction valve of plate type 1 comprises at least a valve catcher 6 and an electronic control device 8. This device can be combined with a valve seat 2, a valve plate 3 and spring elements 5 to form a suction valve 1.
  • the device according to the invention is also suitable for existing ones Suction valves to convert them into a controllable sucking valve 1.
  • the existing valve catcher 6 is replaced by the valve catcher 6 with magnetic coils 9 shown in FIG. 1, and the magnetic coils are connected to the control device 8.
  • An existing suction valve 1 can thus be converted in a simple and inexpensive manner.
  • the device according to the invention and the suction valves 1 are used in particular in piston compressors.
  • the device according to the invention allows the
  • valve plate 3 shows a further exemplary embodiment of a suction valve 1 comprising a valve seat 2 and a valve plate 3, which valve plate 3 consists of a plurality of individual, concentrically arranged, annularly designed valve plate parts 3a, 3b, and a catcher 6 with in the annular bodies 6a of the catcher 6 arranged solenoid coils 9.
  • the springs 5, which press the valve plate parts 3a, 3b in the rest position against the valve seat 2, are not shown.
  • the solenoid coils 9 When the solenoid coils 9 are actuated, the valve plate part 3a, 3b, 3c arranged under the coil 9 is attracted by the overlying, U-shaped annular body 6a.
  • the solenoids 9 can be controlled together, so that all valve plate parts 3a, 3b, 3c can be operated in the same way.
  • the solenoid coils 9 can also be actuated in such a way that the one valve plate parts 3a, 3b, 3c, for example the valve plate parts 3a, 3b, are held on the valve catcher 6 by actuating the solenoid coil 9, while the valve plate part 3c opens and closes normally, since they are above the solenoid coil 9 arranged in the valve plate part 3c is not activated.
  • the valve plate parts 3a, 3b, 3c are made from a ferromagnetic metal such as iron or from a ferromagnetic plastic or from a plastic containing a ferromagnetic metal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Compressor (AREA)
  • Manipulator (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Valve Device For Special Equipments (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP96930945A 1995-10-03 1996-10-01 Procede et dispositif pour une soupape d'admission de type soupape a plaquette Expired - Lifetime EP0853728B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96930945A EP0853728B1 (fr) 1995-10-03 1996-10-01 Procede et dispositif pour une soupape d'admission de type soupape a plaquette

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP95810621 1995-10-03
EP95810621 1995-10-03
EP96930945A EP0853728B1 (fr) 1995-10-03 1996-10-01 Procede et dispositif pour une soupape d'admission de type soupape a plaquette
PCT/CH1996/000340 WO1997013068A1 (fr) 1995-10-03 1996-10-01 Procede et dispositif pour une soupape d'admission de type soupape a plaquette

Publications (2)

Publication Number Publication Date
EP0853728A1 true EP0853728A1 (fr) 1998-07-22
EP0853728B1 EP0853728B1 (fr) 2002-05-08

Family

ID=8221803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96930945A Expired - Lifetime EP0853728B1 (fr) 1995-10-03 1996-10-01 Procede et dispositif pour une soupape d'admission de type soupape a plaquette

Country Status (11)

Country Link
US (1) US6149400A (fr)
EP (1) EP0853728B1 (fr)
JP (1) JPH11512806A (fr)
KR (1) KR19990063951A (fr)
CN (1) CN1078678C (fr)
AT (1) ATE217391T1 (fr)
AU (1) AU6983496A (fr)
CA (1) CA2234157A1 (fr)
DE (1) DE59609191D1 (fr)
RU (1) RU2166144C2 (fr)
WO (1) WO1997013068A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0971160B1 (fr) * 1998-07-07 2005-04-13 Burckhardt Compression AG Robinet-vanne commandé pour un compresseur à piston
DE19852389A1 (de) * 1998-11-13 2000-05-18 Fev Motorentech Gmbh Kolbenbrennkraftmaschine mit drosselfreier Laststeuerung und Einrichtung zur Erzeugung eines Unterdrucks
US7819131B2 (en) * 2005-02-14 2010-10-26 Cameron International Corporation Springless compressor valve
AT504695B1 (de) * 2006-12-22 2008-12-15 Hoerbiger Kompressortech Hold Saugventil mit abhebegreifer
AT504693B1 (de) * 2006-12-22 2009-02-15 Hoerbiger Kompressortech Hold Selbsttätiges ringventil
KR20100058608A (ko) * 2007-09-07 2010-06-03 리베이로 레나토 바스토스 통합형 유체 교환 로터리 디스크 밸브를 구비한 왕복 피스톤 실린더 헤드 커버
EP2351932B1 (fr) * 2007-10-02 2014-08-20 Emerson Climate Technologies, Inc. Compresseur doté d'une plaque de valve améliorée
US8740183B2 (en) 2007-10-18 2014-06-03 Burckhardt Compression Ag Actively controlled valve and method for operating an actively controlled valve
JP5195273B2 (ja) * 2008-10-21 2013-05-08 株式会社Ｉｈｉ 逆止弁
CN102220958B (zh) * 2011-05-09 2013-02-06 合肥通用机械研究院 往复式压缩机进气阀气量无级调节装置
ITCO20110072A1 (it) * 2011-12-22 2013-06-23 Nuovo Pignone Spa Valvole con elemento di chiusura valvolare collegato alla contro-sede attuata e relativi metodi
BRPI1105379B1 (pt) * 2011-12-26 2021-08-10 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda Sistema de válvula semi-comandada aplicado em compressor e método de modulação de capacidade de compressor dotado de sistema de válvula semi-comandada
ITFI20120048A1 (it) * 2012-03-08 2013-09-09 Nuovo Pignone Srl "automatic valve with a spring holder ring"
AT514712B1 (de) * 2013-09-04 2015-06-15 Hoerbiger Kompressortech Hold Ventilplatte für Gaswechselventile
ITUB20150797A1 (it) 2015-05-22 2016-11-22 Nuovo Pignone Tecnologie Srl Valvola per un compressore alternativo
US10436187B2 (en) 2015-10-29 2019-10-08 Emerson Climate Technologies, Inc. Cylinder head assembly for reciprocating compressor
JP2020512512A (ja) * 2017-03-27 2020-04-23 ブルクハルト コンプレッション アーゲー ピストンコンプレッサバルブおよびピストンコンプレッサバルブを動作させるための方法
JP7165670B6 (ja) * 2017-03-27 2023-08-18 ブルクハルト コンプレッション アーゲー ピストンコンプレッサバルブ用のバルブクロージャおよびそのバルブクロージャを動作させるための方法
EP3762638B1 (fr) * 2018-03-08 2022-03-02 Burckhardt Compression AG Soupape à plaque ainsi que son procédé de fonctionnement

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Also Published As

Publication number Publication date
EP0853728B1 (fr) 2002-05-08
US6149400A (en) 2000-11-21
KR19990063951A (ko) 1999-07-26
WO1997013068A1 (fr) 1997-04-10
AU6983496A (en) 1997-04-28
DE59609191D1 (de) 2002-06-13
JPH11512806A (ja) 1999-11-02
ATE217391T1 (de) 2002-05-15
RU2166144C2 (ru) 2001-04-27
CN1198803A (zh) 1998-11-11
CA2234157A1 (fr) 1997-04-03
CN1078678C (zh) 2002-01-30

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