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公开(公告)号：US3701939A
公开(公告)日：1972-10-31
申请号：US3701939D
申请日：1970-12-28
Applicant: DANFOSS AS
Inventor： PETERSEN TOM KASTRUP , HENRIKSEN NEILS JUUL
Abstract: The invention relates to a reverse voltage circuit for thyristors which has particular application to an inverter circuit. The basic circuit includes a thyristor, a first diode, and a transformer having the primary winding thereof in series relation to the diode. The first diode and the transformer primary winding are in parallel relation to the thyristor with the diode being antiparallel relative to the thyristor. The transformer secondary winding and a second diode are in series and a D.C. voltage source biases the second diode in a counter direction relative to the secondary winding. With this circuit higher reverse voltages are obtained having relatively lengthy durations to effect switching off of a thyristor in a satisfactory manner.
Abstract translation: 本发明涉及一种用于晶闸管的反向电压电路，其特别适用于逆变器电路。 基本电路包括晶闸管，第一二极管和变压器，其初级绕组与二极管串联。 第一二极管和变压器初级绕组与晶闸管并联，二极管相对于晶闸管反并联。 变压器次级绕组和第二二极管串联并且直流电压源相对于次级绕组在相对方向上偏置第二二极管。 利用该电路，获得具有相对长的持续时间以使得以令人满意的方式切断晶闸管的反向电压较高。
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公开(公告)号：US3696281A
公开(公告)日：1972-10-03
申请号：US3696281D
申请日：1971-06-02
Applicant: DANFOSS AS
Inventor： GRAMKOW ASGER , HYLDAL JORGEN
IPC: H02P1/44
CPC classification number: H02P1/44
Abstract: The invention relates to a starting circuit for a single phase asynchronous electric motor having a main winding and a starting winding. The circuit comprises a pair of terminals across which the main winding of the motor is connected and across which in operation an AC current is supplied. Means including a PTC resistor are utilized which provide an AC voltage which decreases in amplitude after the motor start-up. An SCR is connected in series with the starting winding and is controlled by a network to which the decreasing AC voltage is supplied. This network has capacitor means for storing current which is then available to control the SCR during zero cross-overs of the single phase AC current.
Abstract translation: 本发明涉及一种具有主绕组和起动绕组的单相异步电动机起动电路。 该电路包括一对端子，电动机的主绕组连接在该端子上，并且在操作中提供交流电流。 使用包括PTC电阻器的装置，其提供在电动机起动之后振幅减小的AC电压。 SCR与起动绕组串联连接，并由提供降低的交流电压的网络控制。 该网络具有用于存储电流的电容器装置，其随后可用于在单相交流电流的零交叉期间控制SCR。
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公开(公告)号：US3690792A
公开(公告)日：1972-09-12
申请号：US3690792D
申请日：1970-12-10
Applicant: DANFOSS AS
Inventor： PETERSEN ALEX
CPC classification number: F04C2/104 , F04C15/0015
Abstract: The invention relates to a gear set of the type comprising a generally annularly shaped internally toothed ring member and an externally toothed star member having at least one fewer teeth than the ring member. The star member has an axis disposed eccentrically relative to the axis of the ring member. These parts are normally formed with low tolerances to facilitate fluid tight sealing between the meshing teeth. A different mode of sealing is provided which comprises sealing plates slidably disposed in radially extending slots formed in the ring member teeth.
Abstract translation: 本发明涉及一种齿轮组，其类型包括大致环形的内齿环构件和具有比环构件至少少一个齿的外齿星形构件。 星形构件具有相对于环构件的轴线偏心设置的轴线。 这些部件通常形成为具有低公差以便于啮合齿之间的流体密封。 提供了一种不同的密封模式，其包括可滑动地设置在形成在环件齿中的径向延伸槽中的密封板。
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公开(公告)号：US3680326A
公开(公告)日：1972-08-01
申请号：US3680326D
申请日：1970-03-18
Applicant: DANFOSS AS
Inventor： HUELLE ZBIGNIEW R
CPC classification number: F25B41/062
Abstract: The invention relates to refrigerating apparatus for cooling a fluid which may be either a liquid or a gas. The components include, in addition to the conventional compressor, condenser and evaporator, a pilot evaporator unit on the downstream side of the evaporator. The fluid to be cooled is passed through the drier prior to being passed through the evaporator. This has the main effect of increasing the effective capacity of the main evaporator by facilitating an optimum regulating operation.
Abstract translation: 本发明涉及用于冷却可以是液体或气体的流体的制冷装置。 除了传统的压缩机，冷凝器和蒸发器之外，部件还包括在蒸发器下游侧的先导蒸发器单元。 要冷却的流体在通过蒸发器之前通过干燥器。 这主要通过促进最佳调节操作来提高主蒸发器的有效容量。
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公开(公告)号：US3664581A
公开(公告)日：1972-05-23
申请号：US3664581D
申请日：1971-02-09
Applicant: DANFOSS AS
Inventor： STANNOW JORGEN CHRISTIAN
IPC: F16K31/363 , F25B41/06 , F25B41/04
CPC classification number: F16K31/363 , F25B41/062
Abstract: THE INVENTION RELATES TO A THERMOSTATICALLY CONTROLLED VALVE ASSEMBLY FOR HIGH CAPACITY REFRIGERATION EQUIPMENT. THE VALVING INCLUDES MAIN AND AUXIALIARY VALVES WITH THE AUXILIARY VALVE FUNCTIONING AS A PILOT VALVE. IN THE OPER-
ATION THE MAIN VALVE MAY OCCUPY ANY INTERMEDIATE POSITION BETWEEN FULLY OPENED AND FULLY CLOSED POSITIONS.-
Patent Agency Ranking
公开(公告)号：US3664193A
公开(公告)日：1972-05-23
申请号：US3664193D
申请日：1970-04-22
Applicant: DANFOSS AS
Inventor： NIELSEN PETER V
Abstract: A passive temperature sensor for controlling a thermostat or the like. The sensor reacts to the temperature of the air and also to thermal radiation in order to control a thermostat in such a manner to give optimum personal comfort despite relative changes over a period of time between the room air temperature and thermal radiation effects in the room.
Abstract translation: 用于控制恒温器等的被动温度传感器。 该传感器对空气的温度以及热辐射进行反应，以便以这种方式控制恒温器，尽管在室内空气温度和室内热辐射效应之间的一段时间内发生相对变化，但仍能提供最佳的个人舒适度。
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公开(公告)号：US3655205A
公开(公告)日：1972-04-11
申请号：US3655205D
申请日：1970-11-03
Applicant: DANFOSS AS
Inventor： PETERSEN JORGEN HARTVIG
CPC classification number: F04D29/128 , F04C15/0038 , F16J15/38 , Y10S277/91
Abstract: The invention relates to a rotary seal unit of the type used for oil pumps and the like. A plastic backing ring having a tapered surface is nested in a conical recess of a face ring. The taper angle of the tapered surface of the backing ring is larger than the taper angle of the conical recess. A resilient sealing ring is spring biased to force the plastic backing ring into contact with the face ring which in turn is biased into sealing engagement with a fixed sealing surface of a stationary bearing block.
Abstract translation: 本发明涉及一种用于油泵等的旋转式密封装置。 具有锥形表面的塑料背衬环嵌套在面环的锥形凹部中。 背衬环的锥形表面的锥角大于锥形凹槽的锥角。 弹性密封环被弹簧偏置以迫使塑料背衬环与面环接触，面环又被偏置成与固定轴承座的固定密封表面密封接合。
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公开(公告)号：US3653248A
公开(公告)日：1972-04-04
申请号：US3653248D
申请日：1970-02-02
Applicant: DANFOSS AS
Inventor： LEFFERS HANS ULRIK
CPC classification number: F04B39/0261 , F04D13/0646 , F25B31/002 , Y10S416/03 , Y10T29/49316
Abstract: The invention relates to a method for making an oil pump for refrigeration machines. The pump comprises a tube formed by drawing which is press fitted into the bore of a motor rotor. The tube is initially formed with an inwardly domed, closed end portion. Circumferentially and radially extending incisions are made in the domed end portion to form cantilever portions which in turn are bent inwardly relative to the end of the tube to form blades.
Abstract translation: 本发明涉及制冷机用油泵的制造方法。 泵包括通过拉力形成的管，其被压配合到马达转子的孔中。 管最初形成有向内圆顶的封闭端部。 在圆顶端部形成圆周和径向延伸的切口，以形成悬臂部分，该悬臂部分又相对于管的端部向内弯曲以形成刀片。
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公开(公告)号：US3636992A
公开(公告)日：1972-01-25
申请号：US3636992D
申请日：1970-05-11
Applicant: DANFOSS AS
Inventor： WEIDNER ERIC
Abstract: A method and apparatus for charging a thermostatic system with a condensable fluid. Essential parts of the apparatus are a storage container for the condensable fluid, a metering container and a charging head. The condensable fluid in the storage container exerts a vapor pressure and, with the use of valve means, vaporized fluid is caused to flow to the metering container until a first predetermined pressure is reached. With the use of other valve means vaporized fluid in the metering container is caused to flow through the charging head to the thermostatic system to be charged until a second lower predetermined pressure is reached. A reducing valve is between the storage container and the metering container to effect a superheated condition for the fluid flowing to the metering container.
Abstract translation: 一种用可冷凝流体对恒温系统充电的方法和装置。 设备的基本部件是用于可冷凝流体的储存容器，计量容器和充电头。 储存容器中的可冷凝流体施加蒸汽压，并且使用阀装置使得蒸发的流体流到计量容器直到达到第一预定压力。 通过使用其它阀门，使得计量容器中的蒸发流体通过充电头流到恒温系统以被充电，直到达到第二较低的预定压力。 减压阀位于储存容器和计量容器之间，以实现流向计量容器的流体的过热状态。
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20.发明授权
公开(公告)号：US3631416A
公开(公告)日：1971-12-28
申请号：US3631416D
申请日：1969-10-06
Applicant: DANFOSS AS
Inventor： THORSOE FLEMMING
CPC classification number: H03K5/15093 , H02M1/08 , H03K23/76
Abstract: The invention relates to a generator for producing control signals for striking the controllable rectifiers of a three-phase inverted converter having common quenching means. The generator is a slide-type impulse-storing type of device which is actuated in synchronism with quenching impulses and has six bistable stages. The output of the third stage is applied to the input of the first stage by way of an inverter. Each stage is associated with one of the controllable rectifiers and the control signals transmitted are dependent upon the switching conditions of the stages.
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