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公开(公告)号:WO1994005937A1
公开(公告)日:1994-03-17
申请号:PCT/DK1993000266
申请日:1993-08-16
Applicant: DANFOSS A/S , BJERGGAARD, Niels
Inventor: DANFOSS A/S
IPC: F16K01/54
CPC classification number: F16K1/526 , F16K3/32 , G05D23/023
Abstract: A valve with presetting facility has a valve housing (1) with a rotatable sleeve (12). To form a preset throttle (35), a control opening (33) at the base (14) of the sleeve co-operates with a control opening (34) at a base face (8) of the valve housing (1). The control opening (34) in the base face (8) is formed by an eccentric bore (9). The control opening (33) in the end face (15) of the base (14) is formed by a channel (31) which extends over a circular arc of less than 360 , is connected at one end by way of an eccentric bore (18) to the inner space (21) of the sleeve (12) and has a cross section that reduces towards the other end. That allows presetting to be very precise and manufacture to be inexpensive.
Abstract translation: 具有预置设备的阀具有带有可旋转套筒(12)的阀壳体(1)。 为了形成预设的节流阀(35),在套筒的底部(14)处的控制开口(33)与阀壳体(1)的基面(8)处的控制开口(34)配合。 基面(8)中的控制开口(34)由偏心孔(9)形成。 基部(14)的端面(15)中的控制开口(33)由在小于360°的圆弧上延伸的通道(31)形成,其一端通过偏心孔连接( 18)到套筒(12)的内部空间(21),并且具有朝向另一端减小的横截面。 这使得预设非常精确,制造成本低廉。
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公开(公告)号:WO1994004874A1
公开(公告)日:1994-03-03
申请号:PCT/DK1993000262
申请日:1993-08-13
Applicant: DANFOSS A/S , KIRKELUND, Poul
Inventor: DANFOSS A/S
IPC: F23K05/04
CPC classification number: F23K5/04
Abstract: An oil supply arrangement (1') for a burner feed device (2) is provided, having a pump (5') which has two main connections, namely, an intake connection (11) and an output connection (13') which is connected to the burner feed device (2). In arrangement of that kind, it is desirable to combine an improved efficiency with a high intake capacity. For that purpose, the pump (5') is in the form of a gear pump, the gear assembly (7, 8) of which in one rotation forms displacement chambers (10) that periodically increase and decrease in volume, at least one auxiliary connection (20, 22) being provided in the circulation direction between the main connections (11, 13'), the auxiliary connection (20, 22) being in fluid connection with the intermediate space between the components of the gear assembly (7, 8) and the main connection (11, 13') located downstream in the circulation direction.
Abstract translation: 提供一种用于燃烧器供给装置(2)的供油装置(1'),其具有具有两个主要连接的泵(5'),即具有进气连接件(11)和输出连接件(13')的输出连接件 连接到燃烧器进料装置(2)。 在这种布置中,希望将提高的效率与高吸入能力相结合。 为此,泵(5')是齿轮泵的形式,齿轮组件(7,8)在一个旋转中形成周期性地增加和减小体积的位移腔(10),至少一个辅助 连接件(20,22)在主连接件(11,13')之间沿循环方向设置,辅助连接件(20,22)与齿轮组件(7,8)的部件之间的中间空间流体连接 )和位于循环方向下游的主连接(11,13')。
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公开(公告)号:WO2023030762A1
公开(公告)日:2023-03-09
申请号:PCT/EP2022/070810
申请日:2022-08-30
Applicant: DANFOSS A/S
Inventor: OSOJNIK, Matjaz , DOLENC, Bostjan , NIELSEN, Claus Kongsgard , BOGAR, Sinisa , POLJAK, Matej , MATICIC, Matija , STEPANCIC, Martin , MUHIC, Miran
Abstract: The present invention relates to an actuator (3) for regulating a valve (1) in a fluid system, wherein the actuator (3) is adapted to operate according to a characteristic curve (4) containing information correlating a valve opening with a flow through the valve (1) and to a flow rate measured by a flow measuring device (5), characterized in that, the regulation of the valve (1) is based on a modified characteristic curve (4M) that is based on a basic characteristic curve (4B) and the measured flow rate by the flow measuring device (5) compared to a design flow rate. The present invention further relates to the method of controlling the valve.
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124.
公开(公告)号:WO2022223167A1
公开(公告)日:2022-10-27
申请号:PCT/EP2022/053421
申请日:2022-02-11
Applicant: DANFOSS A/S
Inventor: LARSEN, Sigurd
Abstract: Coil assembly housing for housing the actuator of a stepper motor valve, comprising a snap feature for snap fitting the coil assembly housing to a valve house assembly, wherein the snap feature comprises at least one protrusion pointing radially inward of the coil assembly housing, wherein the protrusion is provided for interacting with a recess of the valve house assembly, and wherein the protrusion is held inside the recess by a wall of a valve block, into which the valve house assembly and the snap feature are insertable. Furthermore there is disclosed is a valve house assembly, a valve block and a stepper motor valve comprising said components.
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公开(公告)号:WO2022136415A1
公开(公告)日:2022-06-30
申请号:PCT/EP2021/087064
申请日:2021-12-21
Applicant: DANFOSS A/S
Inventor: THALER, Tilen
Abstract: A pressure regulating valve (300) defining a flow path (330) connecting a fluid inlet (320) and fluid outlet (12) and where a pressure regulator valve seat (340) and pressure regulator valve element (350) is positioned in said flow path together defining a pressure regulating valve opening, where the pressure regulator valve element (350) contacts respectively a first pressure chamber (301) at a first side and second pressure chamber (302) at a second side, where respectively a first pressure conduit (311) and a second pressure conduit (312) is in fluid communication with the second pressure chamber (302), and wherein the first pressure conduit (311) and a second pressure conduit (312) first and second valve bodies (15, 16) are positioned to close respectively the first pressure conduit (311) and a second pressure conduit (312).
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公开(公告)号:WO2022119709A1
公开(公告)日:2022-06-09
申请号:PCT/US2021/059600
申请日:2021-11-17
Applicant: DANFOSS A/S
Inventor: YAN, Jin , HARTZOG, Kevin Patrick , ZHANG, Tianli
Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a diffuser including grooves configured to resist backflow of refrigerant. The compressor is used in a heating, ventilation, and air conditioning (HVAC) chiller system, for example.
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公开(公告)号:WO2021201944A2
公开(公告)日:2021-10-07
申请号:PCT/US2021/012258
申请日:2021-01-06
Applicant: DANFOSS A/S
Inventor: LI, Tianlei , LU, Xiangxun
IPC: F28F21/02 , B82Y30/00 , F28D9/00 , F28D2021/0068 , F28F13/185 , F28F2255/20 , F28F3/02
Abstract: A plate heat exchanger according to an exemplary aspect of the present disclosure includes, among other things, a plate having a metal surface. The plate is arranged in a flow of fluid. A plurality of carbon nanotubes are arranged on the metal surface, and the carbon nanotubes are configured to exchange heat with the fluid.
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公开(公告)号:WO2021032564A1
公开(公告)日:2021-02-25
申请号:PCT/EP2020/072607
申请日:2020-08-12
Applicant: DANFOSS A/S
Inventor: BENSLIMANE, Mohamed
Abstract: The invention relates to a sensor arrangement (10) for measuring the pressure and temperature of a fluid, the sensor arrangement (10) comprising a housing (12), a pressure sensor element (18), and a temperature sensor case (20), wherein the housing (12) comprises a passage (22) and a fluid opening (24), the passage (22) and the fluid opening (24) being in fluid communication, wherein the pressure sensor element (18) is connected to the housing (12), the pressure sensor element (18) being in fluid communication with the passage (22), wherein the temperature sensor case (20) comprises at least one temperature sensor element (30), the temperature sensor case (20) being at least partially arranged in the passage (22), wherein the sensor arrangement (10) further comprises an attachment element (26), wherein the attachment element (26) attaches the temperature sensor case (20) to the passage (22), wherein the sensor arrangement (10) further comprises a fluid channel (28) extending at least in part between the housing (12) and the temperature sensor case (20), the fluid channel (28) passing the attachment element (26) and being in fluid communication with the fluid opening (24) and the pressure sensor element (18). The invention provides an improved sensor arrangement (10) for measuring the pressure and temperature of a fluid that comprises a reduced size and is cost-efficient.
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公开(公告)号:WO2020164865A1
公开(公告)日:2020-08-20
申请号:PCT/EP2020/051294
申请日:2020-01-20
Applicant: DANFOSS A/S
Inventor: KLEYMENOVA, Elena , BIRKELUND, Michael
Abstract: An app for testing the presence or not of a direct current magnetic field generated by an electronic or electrotechnical device under test is disclosed. Service technicians increasingly use smartphones as aide in installation, maintenance and troubleshooting and the indication of the existence of a magnetic field or not is a helpful information to the service technician. Using a sensor in the smartphone the measurement of weak magnetic fields generated by direct current devices has proved problematic. A solution to this problem is that a direct current magnetic field detection limit (DC Iim ) is set in the app, and that the presence of a magnetic field potentially generated by said device is only indicated on the smartphone screen if the measured direct current magnetic field (DC meas ) is larger than the set magnetic field detection limit (DC Iim ). The invention further concerns a method for calibrating an app for the measurement of weak direct current generated magnetic fields.
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130.
公开(公告)号:WO2020126273A1
公开(公告)日:2020-06-25
申请号:PCT/EP2019/081994
申请日:2019-11-20
Applicant: DANFOSS A/S
Inventor: FREDERIKSEN, Bjarne
Abstract: The invention relates to a thermalactuator (1, 1 ') for a temperature-dependent movement of an element (22)of a valve, wherein a lengthchange of the thermalactuator (1, 1') depend on a surrounding temperature.Furthermore, the invention relates to a valve with such an actuator and the use of such a valve for controlling a fluid flow. It is envisaged that the actuator (1, 1 ') is made of a temperature dependingmaterial by means of an additive manufacturing method.
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