• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A high pressure plunger pump comprises a centrally arranged pressure valve, an oscillatingly movable plunger, a sleeve guided on the plunger and limiting a working chamber, a suction pump which surrounds the sleeve and accommodates an aspirated fluid, the sleeve having a ring chamber which opens towards the plunger, and a bush which is arranged in the ring chamber and supported against the plunger, the bush abutting against the plunger.
    公开号:SU1554777A3
    申请号:SU884355354
    申请日:1988-03-23
    公开日:1990-03-30
    发明作者:Хаммельманн Пауль
    申请人:Hammelmann Paul；
    IPC主号:
    专利说明:

    The invention relates to pump engineering, in particular to high-pressure pumps with structural changes of plunger pairs.
    The aim of the invention is to increase the level of pressure developed by the pump.
    Figure 1 shows a plunger pump in longitudinal section; figure 2 - embodiment of a plunger pump with a metal deformable sealing sleeve of the plunger.
    The high-pressure plunger pump contains a housing 1, a cover 2 with an opening 3, blocked by a spring loaded by a valve 4 with a shutter 5 of the discharge valve. The housing 1 and the lid 2 are connected with the formation of a suction cavity 6 filled with the pumped medium to accommodate the plunger 7 and a sleeve made of two parts 9 and 10 covering it with a loaded spring 8. The plunger 7 is connected with a reciprocating drive (not shown), and the inner Part 9 of the sleeve has a bore 11 for interfacing with the plunger 7 to form a working chamber 12 and a gap seal and is mounted with limited axial movement to form, together with the end face 13, the cover 2 of the suction valve a. The outer part 10 of the sleeve is provided with a shoulder for axial fixing of the support ring 14, dressed on the sleeve and serving as a support for the spring 8, the other end of which rests on a sleeve 15 fixed in the housing 1, through the opening of which a plunger 7 sealed in this area with a stuffing box packing 16, fixed thrust ring 17 with an external thread 18.
    The inner part 9 of the sleeve on the side facing the drive is provided with an additional bore 19, the diameter of which is larger than the diameter of the main bore 11, to form, when paired with the plunger 7, an annular chamber and place a contact seal on the plunger 7, including rings 20 and 21, between which a cylindrical spring 22 is installed for pressing the set of alternating stuffing rings 23, 24 to the rear support ring 25, fixed by the locking ring 26.
    To reduce the stress concentration in the sleeve, the main 11 and additional 19 bores have a surface 27 arched in the axial section of the sleeve part 9 in the connection zone. Ring 20 has a flat end surface 28 in the contact zone with spring 22 and a rounded surface in the contact zone with the arcuate surface 27 of the part 9 sleeves, as shown in figure 1.
    The invention provides that the contact seal of the plunger 7 can be made in the form of a sleeve of a metal sealing sleeve 30 installed in an additional bore of the inner part 9, having an annular groove 31 on the outer surface to form, together with the inner surface of the additional bore 29, an annular chamber in communication with the mating zone plunger 7 - sleeve using a radial hole 32 made in the body of the sleeve 30 from the side facing the gap seal of the plunger 7, as shown on 2. In the area of the end mating of the sleeve 30 and the inner part 9 of the sleeve along the plane 33, a soft packing 34 is provided, the sealing sleeve 30 has an annular flange 35 on the side facing the drive having axial through holes for passage of fixing screws 36 screwed into the threaded holes 37 ring 38, made in the form of a nut, mounted on a portion of the threaded surface 39 of the inner part 9 of the sleeve.
    The pump operates as follows.
    When the reciprocating movement of the plunger 7, the volume of the working chamber 12 alternately increases (suction stroke) and decreases (discharge stroke).
    When the suction stroke is performed in the working chamber 12, a vacuum forms and the sleeve under the action of a pressure differential between the suction cavity 6 and the working chamber 12, compressing the spring 8, moves away from the end face 13 of the cover 2 and the pumped medium from the cavity 6 fills the working chamber 12.
    When the discharge stroke is performed, the sleeve, in particular the end face of its inner part 9, comes into contact with the end face 13 of the cover 2, and the pumped medium from the working chamber 12 through the hole 3 when the shutter leaves due to the pressure drop. 5 discharge valve plunger 7 is displaced to the consumer. The plunger 7 is sealed with a set of stuffing rings 23, 24 or a sealing sleeve 30, which, covering the plunger 7, is deformed by the pressure in the annular chamber formed in the zone of the annular groove 31, while the pressure in this annular chamber is supplied from the gap seal of the plunger 7 along the radial the hole 32. The heat generated during the stroke is taken from the outer part of the sleeve 10 by the pumped medium in the suction cavity 6.
    权利要求:
    Claims (6)
    [1]
    Claim
    1. A high-pressure plunger pump comprising a housing, a cover with a discharge valve centrally located therein, connected to form a suction cavity filled with the pumped medium to accommodate the plunger and a spring-loaded sleeve surrounding it, the plunger being connected to the drive and installed with reciprocating motion, and the sleeve has a bore for interfacing with the plunger to form a gap seal and is installed with limited axial movement to form in features with the end face of the suction valve cover (characterized in that, in order to increase the pressure level developed by the pump, the sleeve on the side facing the drive is equipped with an additional bore coaxial with its bore, the diameter of which is larger than the diameter of the main race point, for the formation when pairing with the plunger of the annular chamber, and the plunger is equipped with an additional contact seal located in the specified annular chamber.
    [2]
    2. The pump according to claim 1, characterized in that, in order to reduce the stress concentration in the sleeve, the main and additional bores have an arcuate surface in the axial section of the sleeve in the joint zone.
    [3]
    3. The pump according to claims 1 and 2, characterized in that the contact seal of the plunger is made in the form of a gland packing plunger spring-loaded from the side of the gap seal.
    20
    [4]
    4. The pump according to item 3, with the exception of the fact that between the arcuate surface of the sleeve and the stuffing box spring a support ring is installed having a flat end surface in the contact zone with the sleeve,
    [5]
    5. The pump according to paragraphs. 1 and 2, it is important that the contact seal of the plunger is made in the form of a metal 2Q sleeve covering the plunger having an annular groove on the outer surface for forming together with the inner surface of the additional sleeve bore annular chamber in communication with the interface zone plunger - sleeve
    35 using a radial hole made in the body of the sleeve from the side facing the crevice seal of the plunger.
    [6]
    6. The pump according to claim 3, about l and h a
    40 “n and with the fact that the sleeve on the drive side is provided with a portion of the threaded surface with a nut fixed on it having axial threaded holes, and the sleeve is provided with an annular flange with through holes for accommodating screws in the threaded holes of the nut.
    FIG.
    类似技术:
    公开号 | 公开日 | 专利标题
    CN111692065A|2020-09-22|Plunger pump hydraulic end
    US5398944A|1995-03-21|Sealing system for reciprocating rod
    US5006049A|1991-04-09|Peristaltic pump
    US3603215A|1971-09-07|Expanded piston cup and improved spreader
    US5346037A|1994-09-13|Packing nut and rod guide for piston paint pumps
    SU1554777A3|1990-03-30|High-pressure fuel pump
    US5092609A|1992-03-03|High-pressure sealing device between two elements in relative motion
    EP1015767B1|2003-05-02|Plunger seal assembly for a high pressure pump
    US6412783B1|2002-07-02|Self aligning stuffing box for pumpjacks
    JP3954143B2|2007-08-08|High pressure plunger pump
    SU626709A3|1978-09-30|Pump
    US4102611A|1978-07-25|Plunger pump
    SU1732820A3|1992-05-07|Piston-type fuel pump
    US6302401B1|2001-10-16|Stuffing box seal assembly
    US4386782A|1983-06-07|Guide and seal assembly for a piston of a drowned piston type pump
    EP1409895B1|2006-03-29|Reciprocating hermetic compressor
    SU1489584A3|1989-06-23|High-head plunger pump
    SU1118295A3|1984-10-07|Plunger pump split sealing
    US4906167A|1990-03-06|Inherently flushing piston rod for a reciprocating pump
    US3947157A|1976-03-30|Single cylinder pump
    JPH06221263A|1994-08-09|High pressure plunger pump
    US4023916A|1977-05-17|Cylinder-cylinder head mounting arrangement for diesel-type fuel injection pumps
    CN213088164U|2021-04-30|Plunger pump hydraulic end
    SU1560790A1|1990-04-30|High-pressure pump
    US3446427A|1969-05-27|High-pressure plunger-type fluid compressors
    同族专利:
    公开号 | 公开日
    GB2202596B|1991-02-06|
    FR2612993B1|1993-08-06|
    IT8812429D0|1988-03-02|
    DE3709611C2|1991-05-16|
    GB8806143D0|1988-04-13|
    DE3709611A1|1988-10-06|
    GB2202596A|1988-09-28|
    US4840548A|1989-06-20|
    IT1220544B|1990-06-15|
    DE8717850U1|1990-08-09|
    ES2008799A6|1989-08-01|
    FR2612993A1|1988-09-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2527583C1|2012-03-05|2014-09-10|Бхдт Гмбх|High-pressure fluid pump|
    RU2578777C1|2015-03-31|2016-03-27|Зубаир Гаджиевич Абдурагимов|High-pressure plunger pump|DE172235C|
    US2844103A|1954-11-26|1958-07-22|Milton Roy Co|Self-aligning plunger drive|
    FR1394528A|1964-05-14|1965-04-02|Technicon Chromatography Corp|Positive displacement pump|
    FR2169394B1|1972-01-29|1974-02-01|Pumpenfabrik Urach|
    DE2204162B2|1972-01-29|1974-03-14|Pumpenfabrik Urach, 7417 Urach|Gap seal for sealing reciprocating machine parts|
    US3785659A|1972-03-17|1974-01-15|Exxon Production Research Co|Packing cartridge for reciprocating pump|
    US4146355A|1973-06-25|1979-03-27|Paul Hammelmann|High-pressure plunger pump|
    DE2445696B2|1974-09-25|1977-01-27|Paul Hammelmann Maschinenfabrik, 4740 Oelde|HIGH PRESSURE PUMP|
    DE2615531C3|1976-04-09|1980-01-10|Paul Hammelmann Maschinenfabrik, 4740 Oelde|High pressure plunger pump|
    DE2615530C3|1976-04-09|1980-02-28|Paul Hammelmann Maschinenfabrik, 4740 Oelde|High pressure plunger pump|
    DE3264420D1|1981-08-05|1985-08-01|Ver Edelstahlwerke Ag|Seal for sealing high-pressure devices|
    FR2580764B1|1985-04-22|1987-07-10|Bertin & Cie|HIGH PRESSURE SEALING DEVICE BETWEEN TWO RELATIVE MOVING ELEMENTS|US4983103A|1988-08-16|1991-01-08|Neuberg Company Limited|Annular plunger pump|
    US5417065A|1994-03-07|1995-05-23|Liou; Guey-Juh|Oil pressure device of jack|
    DE19604132C2|1996-02-06|2000-04-13|Hammelmann Paul Maschf|High pressure plunger pump, preferably for working pressures above 2,000 bar|
    US20100032594A1|2008-08-07|2010-02-11|Rostra Vernatherm LLC|Freeze protection valve|
    EP2287462B1|2009-07-08|2012-04-18|Delphi Technologies Holding S.à.r.l.|A pump unit|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3709611A|DE3709611C2|1987-03-24|1987-03-24|
    [返回顶部]