• 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 includes a pump housing centered on an axis and including a main body having two axially spaced ends, and a pump head secured to one of the ends of the main body. A plunger coaxially extends into the pump housing and a sleeve is floatingly supported on the plunger. The sleeve has two end portions one of which is closer to the pump head than the other, converges toward the pump head and has an axial end face. An insert body is positionally secured in the pump housing at the one end portion of the sleeve and bounds a circumferentially extending annular suction channel with this one end portion. The insert body includes an annular shoulder having a substantially axially facing seating surface. Pressure and suction valves are coaxially arranged within the housing. The suction valve is constructed as a plate valve including an annular suction valve member movable toward and away from its closed position in which its outer and inner regions respectively sealingly contact the annular shoulder of the insert body and the axial end face of the sleeve. A spring urges the suction valve member towards its closed position. The contact surfaces of the inner and outer regions of the suction valve body with the sleeve and with the insert member may be axially offset from one another, and the suction valve member may have a tapered region between such surfaces.
    公开号:SU1489584A3
    申请号:SU864027661
    申请日:1986-06-20
    公开日:1989-06-23
    发明作者:Paul Khammelman；Erikh Breker
    申请人:Hammelmann Paul；
    IPC主号:
    专利说明:

    The invention relates to a pump engineering industry, in particular to high-pressure plunger pumps.
    The purpose of the invention is to increase the efficiency by reducing the hydraulic resistance and wear in the area of the suction valve.
    Figure 1 shows a high-pressure plunger pump, a longitudinal section; 30 in figure 2 is a pump designed to operate in high pressure.
    The high-pressure plunger pump contains a housing 1 connected to a hydraulic unit. trap 2, in which the insert is installed - 35 breathing 3 with a stop forming an annular supporting surface 4, a plunger 5 located coaxially with respect to the axis of the housing 1 pressure 6 and suction 7 valves, sleeve 8, covers 40 - The giving plunger. 5, installed with the possibility of movement along the axis 9 of the plunger 5 and tapering to the head 2. In the insert 3 there is a conical hole, the walls of which are parallel to the tapered end 10 of the sleeve 8,
    The suction valve 7 is made lamellar, its locking element 11 is spring-loaded and installed with the possibility of interaction of its end surface with the annular surface 4 of the liner 3.
    The end surface 12 of the sleeve 8 forms the seat of the shut-off element $$ 11 of the suction valve 7. A circular annular suction channel 13 is formed between the sleeve 8 and the insert 3.
    In the liner 3 in the lifting zone of the shutter element AND of the suction valve 7 is installed a guide sleeve 14 made of a material with a low coefficient of friction, interacting with the outer edge of the locking element 11.
    In a high-pressure plunger pump designed for operation under high pressure conditions (Fig. 2), the annular surface 12 of the shut-off element 11, resting on the annular surface 4 of the liner 3, is located in the longitudinal direction of the suction valve 7 with an offset relative to the annular surface 15 of the shut-off element 11 interacting with the sleeve 8, and the locking element 11 narrows toward its annular surface 15.
    In order to keep the flow resistance at the open position of the suction valve 7 at a low level, the narrowing zone of the shut-off element 11 has an arcuate external contour. In the locking element 11, a central hole 16 is made, and the height of the locking element corresponds to the diameter of this hole.
    The sleeve 8 in the area of the suction channel 13 has a 5-shaped external circuit.
    The liner 3, located in the area of the suction channel 13, is also rounded, which helps to reduce the hydraulic pressure when the medium is sucked into the working space formed by the sleeve 8,
    High-pressure plunger pump operates as follows.
    When the plunger moves towards the drive (not shown), a vacuum is formed in the cavity of the $ 8 sleeve, under the action of which the shut-off element 11 of the suction valve 7 rises from the valve seat. The rise of the locking element 11 is supported by a preliminary pressure in the suction chamber, which covers the sleeve 8,
    During the suction stroke, the cavity of the sleeve 8 is filled with the pumped liquid, which enters through the <5 suction channel 13.
    During the stroke of the plunger 5 from the actuator, the suction valve closes and the pumped liquid is supplied with the pressure valve 6 open to the pump head 2, from where it is discharged to the consumer.
    权利要求:
    Claims (6)
    [1]
    Claim
    1. High-pressure plunger pump, comprising a housing connected to a head in which a liner is mounted with a stop forming an annular supporting surface, a plunger, 30 pressure and suction valves located coaxially with respect to the axis of the housing, a sleeve covering the plunger mounted for movement along the axis of the plunger and tapering toward the head, and a hole is made in the insert, the walls of which are parallel to the tapering end of the sleeve, the suction valve being made lamellar, the locking element of which spring-loaded and installed with the possibility of interaction with its end surface with the annular surface of the liner, characterized in that, in order to increase the efficiency d $ by reducing hydraulic resistance and wear in the area of the suction valve, the end surface of the sleeve is made with the possibility of forming a saddle of a shut-off element of the suction valve, and a circular annular suction channel is formed between the sleeve and the liner.
    [2]
    2. Pump pop. ^ characterized in that in the insert in the lifting zone of the shut-off element of the suction valve, a guide sleeve is installed that interacts with the outer edge of the shut-off element, and the guide sleeve is made of material with a low coefficient of friction.
    [3]
    3. Pump pop. 1, characterized in that the annular surface of the locking element, resting on the annular surface of the liner, is located in the longitudinal direction of the suction valve with an offset relative to the annular surface of the locking element interacting with the sleeve, and the locking element tapers towards this annular surface.
    [4]
    4. Pump pop, 3, characterized in that the tapering zone of the locking element has an arcuate external contour.
    [5]
    5. The pump according to paragraphs. Zi4, characterized in that the Central hole is made in the locking element, and the height of the locking element corresponds to the diameter of this hole.
    [6]
    6. Pump pop. 3, characterized in that the end surface of the sleeve in the area of the suction channel has a 5-shaped external contour.
    FIG. 2
    类似技术:
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    同族专利:
    公开号 | 公开日
    GB2177461A|1987-01-21|
    DE3523387C2|1989-06-01|
    GB2177461B|1988-09-21|
    JPS627982A|1987-01-14|
    FR2584145A1|1987-01-02|
    GB8614478D0|1986-07-16|
    DE3523387A1|1987-01-08|
    US4741680A|1988-05-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB212304A|1922-12-06|1924-03-06|Louis Henri Libert Bellem|Improvements in and relating to pumps having an adjustable delivery, particularly adapted for feeding internal combustion engines with fuel|
    US1734721A|1927-02-12|1929-11-05|Frisch August|Lubricant and fuel pump|
    FR880453A|1941-08-29|1943-03-26|Olaer Marine|Friction valves|
    US3238887A|1964-03-26|1966-03-08|Union Carbide Corp|Cryogenic liquid 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|
    DE2631217C3|1976-07-12|1980-07-10|Paul 4740 Oelde Hammelmann|High pressure plunger pump|
    DE3003869C2|1980-02-02|1985-01-17|Uraca Pumpenfabrik GmbH & Co KG, 7432 Bad Urach|Suction and pressure valve arrangement|
    DE3404520C2|1984-02-09|1997-01-09|Uraca Pumpen|Pump or hydraulic system|DE4001335C1|1990-01-18|1991-01-31|Paul Hammelmann Maschinenfabrik Gmbh, 4740 Oelde, De|High-pressure plunger pump - incorporates adjustable sleeve and disc-types inlet valve|
    DE4200536A1|1992-01-11|1993-07-15|Paul Hammelmann|HIGH PRESSURE PLUNGER PUMP, PREFERRED FOR WORKING PRESSURES ABOVE 2,000 BAR|
    US5636975A|1994-04-04|1997-06-10|Reynolds Metals Company|Inlet and discharge valve arrangement for a high pressure pump|
    EP2287462B1|2009-07-08|2012-04-18|Delphi Technologies Holding S.à.r.l.|A pump unit|
    US8904912B2|2012-08-16|2014-12-09|Omax Corporation|Control valves for waterjet systems and related devices, systems, and methods|
    US9464631B2|2013-01-08|2016-10-11|Cummins Inc.|Fuel pump for an internal combustion engine|
    RU2578777C1|2015-03-31|2016-03-27|Зубаир Гаджиевич Абдурагимов|High-pressure plunger pump|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19853523387|DE3523387C2|1985-06-29|1985-06-29|
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