公开(公告)号：US3606241A

公开(公告)日：1971-09-20

申请号：US3606241D

申请日：1969-06-03

Applicant: DANFOSS AS

Inventor： BORNHOLDT SIEGFRED

IPC: F16K31/06 ,  H01F7/08 ,  H01F7/16

CPC classification number: F16K31/0693 ,  H01F7/088 ,  H01F7/1607

Abstract: THE INVENTION RELATES TO A HYDRAULICALLY DAMPED MAGNETIC VALVE HAVING AN OIL CHAMBER IN WHICH THE ARMATURE AND COIL ARE ENCLOSED. THE OIL CHAMBER IS FORMED BY DIAPHRAGMS ATTACHED TO THE VALVE SPINDLE, AT OPPOSITE ENDS OF THE ARMATURE, AND TO THE INTERIOR WALL OF THE HOUSING. TWO GAS CHAMBERS ARE FORMED INTERIORLY OF THE HOUSING ON OPPOSITE SIDES OF THE OIL CHAMBER. A PASSAGE IS FORMED IN THE VALVE SPINDLE WHICH EXTENDS FROM THE VALVE CHAMBER TO ONE OF THE GAS CHAMBERS TO EFFECT BALANCING WHICH IS CONCOMITANT WITH LOW CLOSING SPRING FORCES.

公开(公告)号：US3593081A

公开(公告)日：1971-07-13

申请号：US3593081D

申请日：1968-09-19

Applicant: DANFOSS AS

Inventor： FORST SVEN

IPC: H02P1/42 ,  H02P1/44

CPC classification number: H02P1/42

Abstract: This invention relates to a single phase motor which includes in the circuit means thereof a starting winding in series with a PTC-resistor having lower and upper resistance ranges. The PTC resistor is designed so that it is only operable in the low resistance range when heated solely by the effects of the starting current flowing therethrough. External heating means is provided for supplying an amount of auxiliary heat to the PTCresistor to effect a shift to the high resistance range. The external heating means supplies heat at a rate which causes the shift to the higher resistance range to occur at a predetermined time.

公开(公告)号：US3585561A

公开(公告)日：1971-06-15

申请号：US3585561D

申请日：1969-07-15

Applicant: DANFOSS AS

Inventor： IVERSEN KRISTIAN

IPC: H01C10/26 ,  H01C5/08

CPC classification number: H01C10/26

Abstract: The invention relates to a restoring potentiometer for a servomotor having a movable output member. The resistor element of the potentiometer comprises a helical coil of spring wire and retaining means are provided for adjustably positioning one or both ends of the spring so that the full potentiometer resistance can be utilized for any size of working range. The retaining means can also be used to actuate a limit switch.

公开(公告)号：US3584540A

公开(公告)日：1971-06-15

申请号：US3584540D

申请日：1969-02-19

Applicant: DANFOSS AS

Inventor： PETERSEN ALEX ,  CHRISTENSEN HELGE KAJHOLM

IPC: F16H61/40 ,  F16H61/4043 ,  F16H61/46 ,  F15B11/08 ,  F15B13/042

CPC classification number: F16H61/46 ,  F16H61/4043 ,  Y10T137/7791

Abstract: A bypass valve for use in a hydraulic system having a hydraulic motor or pump. The bypass valve shunts the motor or pump and connects the supply and discharge lines thereto and in response to pressure drops across the motor or pump bypasses fluid to keep the motor speed or pump output constant. The bypass valve compensates for motor or pump fluid leakage and keeps the sum of the quantity of fluid flow through the bypass valve and the leakage fluid constant. The bypass valve has a nonlinear characteristic curve determined by bypass orifices of varying dimensions controlled by a pressure-responsive axially movable slide.

公开(公告)号：US3584537A

公开(公告)日：1971-06-15

申请号：US3584537D

申请日：1969-05-26

Applicant: DANFOSS AS

Inventor： SCHULZ BURKHARDT

IPC: B62D5/093 ,  B62D5/32 ,  F15B11/16 ,  F15B15/18

CPC classification number: B62D5/32 ,  B62D5/093

Abstract: The invention relates to adding of auxiliary apparatus to a conventional or standard hydrostatic steering system of the type in which a steering wheel controlled metering device controls the application of pressurized fluid to hydraulic motor means which operates the rod system of the wheels to be steered. The auxiliary apparatus allows a conventional metering system of relatively small size and capacity to be utilized for heavier vehicles than a system of a particular size or capacity could otherwise be used for. The auxiliary apparatus includes a valve which is operable in response to the pressure differential across the motor ports of the meter of the conventional system to provide greater operating forces for turning the wheels of the vehicle.

公开(公告)号：US3572975A

公开(公告)日：1971-03-30

申请号：US3572975D

申请日：1969-04-28

Applicant: DANFOSS AS

Inventor： VALBJORN KNUD V ,  ROMER BENDT WEGGE ,  HOLME BENT MELCHIOR KARLSEN

IPC: F04B39/12 ,  F04B39/00

CPC classification number: F04B39/127

Abstract: The invention relates to a motor compressor assembly of the type used for small refrigeration machines. The assembly has an outer casing in which a motor compressor unit is suspended by springs. The springs are of the spirally wound type and are disposed, in vertical planes, between the motor compressor unit and the casing.

公开(公告)号：US3572290A

公开(公告)日：1971-03-23

申请号：US3572290D

申请日：1968-01-10

Applicant: DANFOSS AS

Inventor： CHRISTIANSEN ERIK FREDE

IPC: H02K15/12 ,  B05C5/00

CPC classification number: H02K15/12

Abstract: APPARATUS FOR COATING WINDING SLOTS OF ELECTRICTCAL MOTOR CORES SUCH AS STATORS OR ROTORS WITH STREAMS OF INSULATING PARTICLES DEVELOPED EXTERNALLY OF AN AREA IN WHICH THE UNIT TO BE INSULATED IS DISPOSED AND APPLYING THE COATING PARTICLES ONLY ON DESIRED SURFACES OF THE SLOTS BEING COATED WITHOUT CONTAMINATION OF THE ATMOSPHERE IN WHICH THE UNIT BEING COATED IS DISPOSED SO THAT THERE IS SUBSTANTIALLY NO DEPOSITION OF INSULATING PARTICLES ON SURFACES OTHER THAN THOSE BEING COATED. PARTICLES ARE SUSPENDED IN A CHAMBER AND THEN SUBJECTED TO GAS FLOW THROUGH THE CHAMBER AND AN OUTLET SHUTTER OR MASK SO THAT THE INSULATING PARTICLE STREAMS OF DIFFERENT CROSS SECTIONS ARE FORMED SEQUENTIALLY AS THE GAS FLOW LEAVES THE CHAMBER AND ENTER THE AREA IN WHICH THE CORE BEING COATED IS DISPLACED. THE AREA AND ATMOSPHERE IN WHICH THE CORE IS DISPOSED IS THUS FREE OF PARTICLES EXCEPT FOR THE STREAMS OF PARTICLES PASSING THROUGH THE AREA IN THE SLOTS. EXCESS PARTICLES LEAVING THE SLOTS ARE RECOVERED IN A SECOND CHAMBER OUTSIDE OF THE AREA IN WHICH THE CORE IS DISPOSED. THE SECOND CHAMBER IS OPPOSITE TO AND SPACED FROM THE FIRST-MENTIONED CHAMBER AND THE CORE IS DISPOSED THEREBETWEEN. A REVERSE FLOW OF INSULATING PARTICLE STREAMS CAN BE APPLIED FROM THE SECOND CHAMBER AND RECOVERY OF EXCESS MATERIAL MADE AT THE FIRST CHAMBER.

公开(公告)号：US3559034A

公开(公告)日：1971-01-26

申请号：US3559034D

申请日：1969-02-14

Applicant: DANFOSS AS

Inventor： JENSEN ARNE ,  PETERSEN TOM KASTRUP

IPC: H02M7/515 ,  H02M7/52

CPC classification number: H02M7/5152

Abstract: THE INVENTION RELATES TO AN INVERTED CONVERTER OF THE TYPE HAVING AT LEAST TWO BRANCHES WITH EACH BRANCH CONTAINING TWO CONTROLLABLE RECTIFIERS ARRANGED IN SERIES. EACH CONTROLLABLE RECTIFIER HAS A FREE RUNNING DIODE ASSOCIATED THEREWITH AN EACH BRANCH IS CONNECTED TO A D.C. VOLTAGE SUPPLY THROUGH A SHORT CIRCUIT IMPEDANCE. THE CONVERTER HAS COMMON QUENCHING CONTROL MEANS IN PARALLEL WITH THE BRANCHES. THE QUENCHING CONTROL MEANS INCLUDES A CONDENSER WHICH IS DISCHARGEABLE THROUGH A CONTROLLABLE QUENCHING RECTIFIER AND A CHOKE.

公开(公告)号：US3521138A

公开(公告)日：1970-07-21

申请号：US3521138D

申请日：1968-04-02

Applicant: DANFOSS AS

Inventor： ENEMARK ARNE F ,  VIND HOLGER V ,  SCHACK ANDREAS T

IPC: H01H61/02 ,  H02P1/42 ,  H02P1/44

CPC classification number: H01H61/02 ,  H02P1/42

公开(公告)号：US3514241A

公开(公告)日：1970-05-26

申请号：US3514241D

申请日：1968-02-12

Applicant: DANFOSS AS

Inventor： SJOTUN KYRRE GUTTORM ,  STURLASON LEIF VIGGO

IPC: F04C11/00 ,  F23K5/14 ,  H02K5/128 ,  H02K7/08 ,  H02K7/14 ,  F23N5/24

CPC classification number: H02K5/128 ,  F04C11/005 ,  F23K5/145 ,  H02K7/085 ,  H02K7/14