• 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:
    The invention relates to a valve for volatile liquids such as an expansion valve for a refrigeration plant. Magnetic valves of this type have a plunger actuated closure member which controls a small throttle opening which functions to vaporize the cooling liquid. The valve action can be noisy and damping chambers have been provided for damping the movement of the plunger. As disclosed herein such a damping chamber is disposed in the flow path downstream from the throttle opening where a cooling vaporization occurs and the cooling vaporization is effective to minimize vaporization in the damping chamber which would otherwise reduce the effectiveness of the damping chamber.
    公开号:SU1433424A3
    申请号:SU853976492
    申请日:1985-11-11
    公开日:1988-10-23
    发明作者:Вагн Вальбьерн Кнуд；Отто Мельдгор Поуль
    申请人:Данфосс А/С (Фирма)；
    IPC主号:
    专利说明:

    WITH
    WITH
    Item 8. The groove 7 is blocked by a partition 11 made of a non-magnetic material, having a central hole 12 for the sleeve 13 and forming an annular cavity 18 with the bath 4, a locking element 20 is installed in the cavity 18 with a pressure piston 22 entering the cy- Indra chamber 24 sleeves 13. Ele fjieHT 20 on the one hand interacts with the seat 16 of the fitting 15, made ijeHHoro in the partition 11 and the throttle channel 17 forming the ij-o, and with the protrusion M of the bath 4. On the other hand 17 along the working medium, the cooler 30 for the partial pairing of the working medium, having a thermal contact with the camera 24 and made in the form of a cavity connected to the outlet nozzle 3. The cavity can be. made in the form of a channel parallel to the axis of the chamber 24 and bounded in cross section by two opposite circular arcs of the equidistant sleeve 13 and the adjacent radial grooves blocking the channel 17. When the valve is opened, part of the liquid through channel 17 enters the cooler 30, where it is partially evaporated Thus, the liquid in the chamber, despite the decrease in pressure, does not boil, which ensures effective damping. 6 hp ff, 2 un.
    one
    : The invention relates to refrigeration engineering, in particular, expansion valves for low boiling refrigerating apparatuses.
    The purpose of the invention is to increase reliability.
    FIG. 1 shows an expansion valve, longitudinal section; FIG. in fig. 2 - the same, top view,
    The proposed valve contains a corus 1 with an inlet 2 and an outlet 3 latruts. Case 1 consists of a cup-shaped bath 4 and a body of coil 5, which are made of magnetically conductive IIAt and are connected at junction 6. The coil body 5 has an annular groove 7 open on one side, into which an electromagnet B coil is inserted on a carrier 9, the power of which through the opening 10. The side of the coil 5 body opposite to the outlet nozzle 3 is blocked by a partition wall 11 made of a non-magnetic material, having a central opening 12 for the sleeve 13 C; the bottom 14 and the nozzle 15 forming the saddle 16 with the throttle channel 17. The partition 11 and the bath 4 form an auxiliary cavity 18 in which a ring-shaped mesh 19 is placed. The partition 11 is tightly connected to the housing 1 at the junction 6.
    In the inlet cavity 18, a locking element 20 is installed, which can interact with the seat 16 and the central protrusion M of the bath 4, and is affected by the spring 21. The element 20 has a displacement piston 22 that enters the sleeve 13 to form an annular gap 23. Due to the latter cylindrical chamber 24 is connected to inlet cavity 18.
    The coil body 5 has a channel 25 including a cylindrical section 26 and cavities 27 and 28. A sleeve 13 is inserted in section 26 to form radial grooves 29 in plan, and cavity 28 closes the throttle channel 17. Cooler 30 includes cavities 27 and 28, as well as an end cylindrical section 26, located on the bottom of the gun 14.
    Pa. The cooling valve works as follows.
    When the electromagnet 8 is energized, the locking element 20, opposed to the spring 21, is attracted to the central protrusion M, and the volume of the cylindrical chamber 24 increases. Accordingly, the pressure in the chamber 24 decreases, and the working fluid flows there from the inlet cavity 18
    31
    through the annular gap 23. The valve slowly opens, and the liquid through the throttle channel 17 flows into the cooler 30.
    Since there is no more pressure in it, the liquid partially evaporates and thereby cools the chamber 24 with liquid. As a consequence, the liquid in the chamber 24 has a sufficiently low temperature, due to which it, despite the reduction in pressure, does not boil. This provides effective damping and increased valve reliability during operation.
    A similar damping action takes place when the coil of the electromagnet 8 is turned off, when the locking element 20 returns to the closing position under the action of the spring 21.
    Instead of cavities 27 and 28 in the housing of the coil 5, axial apertures can be made through which the liquid working medium, partially evaporated, is supplied to the outlet nozzle 3



    权利要求:
    Claims (7)
    [1]
    1. Expansion valve for light-duty working environment of a refrigeration unit, comprising a housing with inlet and outlet nozzles, a damping device comprising a cylindrical chamber and a displacement piston, a locking element, a throttle channel and at least one annular gap connecting the cylindrical chamber with the inlet nozzle characterized in that, for the purpose of
    In order to increase reliability, the valve of auxiliary water material with a central plate contains a chiller placed behind the throttle channel along the working medium for partial evaporation of the working medium, which has thermal contact with the chamber, and the displacement piston is connected to the locking element blocking the throttle channel.
    45
    stupid, interacting with the locking element, adjacent to the body and connected to the inlet nozzle, the inlet nozzle is located along the axis of the body from the side opposite to the bath, and the throttle channel is made in the partition.
    [2]
    2. Klag1an pop. 1, characterized in that the cooler is made in the form of a cavity connected to the outlet pipe.
    [3]
    hz. K. papan according to claim 2, characterized in that the cooler cavity is made in the form of at least one channel parallel to the axis of the chamber.
    [4]
    4. Valve on PP. 1-3, which is based on the fact that the chassis is formed by a sleeve which is closed on one side and is placed around an annular clearance piston with an annular gap.
    [5]
    5.Klapan Popp. Zi4, characterized in that the channel in cross section is bounded by two opposite circular arcs, an equidistant sleeve, and adjacent radial grooves overlapping the throttle channel.
    [6]
    6. The valve on the PP. 1-5, about tl and h a-y u and with the fact that it is made
    magnetic type with a coil and a bark, and a magnet with a coil installed in the housing, and the crowning serves as a displacement; tel piston.
    [7]
    7. The valve according to claim 6, characterized in that the body is made of magnetic material with an annular groove, open from the bottom end, covered with a partition of non-magnetic material with the formation of an annular cavity in which the kit is installed, under the partition there is an additional bath
    40 water resistant material with central high
    45
    stupid, interacting with the locking element, adjacent to the body and connected to the inlet nozzle, the inlet nozzle is located along the axis of the body from the side opposite to the bath, and the throttle channel is made in the partition.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1433424A3|1988-10-23|Expansion valve for low-boiling working medium of refrigerating plant
    US4242116A|1980-12-30|Magnetic valve, especially three-way valve as a switching device for multi-temperature cooling apparatus with only one refrigeration machine
    US4540154A|1985-09-10|Solenoid valve
    US4831989A|1989-05-23|Control valve
    US6435472B1|2002-08-20|Proportional variable force solenoid control valve with armature damping
    US5661895A|1997-09-02|Method of controlling the magnetic gap length and the initial stroke length of a pressure surge fuel pump
    KR100286150B1|2001-11-22|Low noise, low wear, rotating solenoid valve
    EP0055518B1|1986-02-19|Solenoid valve
    KR20050023282A|2005-03-09|Improvements in and relating to solenoid fuel drain valves
    JP2004132543A|2004-04-30|Electric fluid pressure control valve
    US4638973A|1987-01-27|Inline solenoid operated slide valve
    KR930004669A|1993-03-23|Solenoid valve
    US3400663A|1968-09-10|Reciprocating plunger pump
    US3302582A|1967-02-07|Electromagnetic pump
    KR100415354B1|2004-05-10|Thermostatic expansion valve integrated with electrically operated inlet valve
    EP0756292B1|2001-10-31|Magnetic gap construction
    US3325085A|1967-06-13|Compressor
    KR880007956A|1988-08-29|Shut-off on / off valve
    US4817914A|1989-04-04|Electromagnetic valve assembly
    EP0999486B1|2004-02-25|Pilot operated flow regulating valve
    US5630401A|1997-05-20|Combined fuel injection pump and nozzle
    US3972505A|1976-08-03|Control valve
    US3902527A|1975-09-02|Electromagnetically actuatable multipath valve
    JP3462662B2|2003-11-05|solenoid valve
    KR0134618B1|1998-04-21|Solenoid valve
    同族专利:
    公开号 | 公开日
    DE3441251A1|1986-05-22|
    DD242080A5|1987-01-14|
    DK512585A|1986-05-13|
    AU581036B2|1989-02-09|
    JPH0328625B2|1991-04-19|
    FR2573171A1|1986-05-16|
    AU4982485A|1986-05-22|
    GB8527764D0|1985-12-18|
    DE3441251C2|1988-09-15|
    FR2573171B1|1988-11-25|
    DK157153C|1990-04-30|
    GB2167163B|1988-07-13|
    GB2167163A|1986-05-21|
    DK157153B|1989-11-13|
    US4614327A|1986-09-30|
    CA1261640A|1989-09-26|
    JPS61116183A|1986-06-03|
    DK512585D0|1985-11-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US984151A|1910-02-16|1911-02-14|Sarah Louise Okey|Tank for liquids.|
    US2876753A|1954-02-09|1959-03-10|Irvin B Chandler|Manually controllable automobile governor|
    DE1234113B|1963-09-25|1967-02-09|R I V Anstalt Zur Verwaltung V|magnetic valve|
    DE1922299A1|1969-04-30|1970-11-12|Burkhart Kaul|Cordless bowling machine|
    US3967781A|1975-02-12|1976-07-06|Emerson Electric Co.|Electrically operated expansion valve for refrigeration control|
    JPS5330060A|1976-09-01|1978-03-20|Hitachi Ltd|Flow rate control valve for refrigerator|
    US4448038A|1979-10-01|1984-05-15|Sporlan Valve Company|Refrigeration control system for modulating electrically-operated expansion valves|
    DE3045892A1|1980-12-05|1982-06-09|Daimler-Benz Ag, 7000 Stuttgart|Refrigerating system liq. expansion valve - has damping cushion formed by refrigerating medium overflowing via throttling passage|
    EP0061104B1|1981-03-24|1986-09-10|INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA S.p.A.|Device for the adjustment of the refrigerating fluid flow in a apparatus for the production of cold or hot conditions and system for regulating such fluid flow|
    US4459819A|1982-03-05|1984-07-17|Emerson Electric Co.|Pulse controlled expansion valve and method|DE3519292C2|1985-05-30|1993-01-21|Robert Bosch Gmbh, 7000 Stuttgart, De|
    DE3844453C2|1988-12-31|1996-11-28|Bosch Gmbh Robert|Valve for the metered admixture of volatilized fuel to the fuel-air mixture of an internal combustion engine|
    DE3930785C1|1989-09-14|1991-03-07|Danfoss A/S, Nordborg, Dk|
    EP0445006B1|1990-02-26|1994-07-27|Long Manufacturing Ltd.|Heat exchanger with circular flow|
    US5252939A|1992-09-25|1993-10-12|Parker Hannifin Corporation|Low friction solenoid actuator and valve|
    US5460349A|1992-09-25|1995-10-24|Parker-Hannifin Corporation|Expansion valve control element for air conditioning system|
    US5351934A|1992-12-15|1994-10-04|Alliedsignal, Inc.|Proportional solenoid valve|
    US5715704A|1996-07-08|1998-02-10|Ranco Incorporated Of Delaware|Refrigeration system flow control expansion valve|
    DE19846226C2|1998-10-07|2002-07-11|Emerson Electric Gmbh|valve assembly|
    JP2001004252A|1999-06-24|2001-01-12|Tgk Co Ltd|Supercooling degree control type expansion valve|
    US6101827A|1999-11-08|2000-08-15|Burson; Benard|Temperature comparison circuit and refrigeration expansion valve|
    US6530528B2|2001-07-27|2003-03-11|Parker-Hannifin Corporation|Refrigerant expansion valve having electrically operated inlet shutoff with improved armature dampening|
    JP2012021746A|2010-07-16|2012-02-02|Fuji Electric Co Ltd|Electronic expansion valve|
    JP6478958B2|2016-09-02|2019-03-06|株式会社不二工機|Control valve|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3441251A|DE3441251C2|1984-11-12|1984-11-12|
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