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1. WO2020072663 - PROGRESSIVE CAVITY PUMP UNIVERSAL JOINT

Publication Number WO/2020/072663
Publication Date 09.04.2020
International Application No. PCT/US2019/054318
International Filing Date 02.10.2019
IPC
F04C 15/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
15Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/-F04C14/164
F04C 2/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
2Rotary-piston machines or pumps
02of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
F16D 3/40 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
3Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
26Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected
38with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
40with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
CPC
F04C 15/0034
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
15Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
0003Sealing arrangements in rotary-piston machines or pumps
0034for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
F04C 15/0065
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
15Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
0057Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
0061Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
0065for eccentric movement
F04C 15/0073
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
15Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
0057Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
0061Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
0073Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
F04C 15/0076
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
15Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
0057Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
0076Fixing rotors on shafts, e.g. by clamping together hub and shaft
F04C 15/0088
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
15Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
0088Lubrication
F04C 2/025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
2Rotary-piston machines or pumps
02of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
025the moving and the stationary member having co-operating elements in spiral form
Applicants
  • GRACO MINNESOTA INC. [US]/[US]
Inventors
  • MCMICHAEL, Jonathan, R.
  • MUCKLEY, David, M.
Agents
  • WRIGHT, Erik A.
  • SWANSON, Andrew, R.
  • FAIRBAIRN, David, R.
Priority Data
62/741,34304.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROGRESSIVE CAVITY PUMP UNIVERSAL JOINT
(FR) JOINT DE CARDAN DE POMPE À CAVITÉ PROGRESSIVE
Abstract
(EN)
A progressive cavity pump includes a torque input disposed on a rotational axis, a resilient stator cylinder, a screw rotor situated within the resilient stator cylinder, and a universal joint. The universal joint rotationally couples the screw rotor to the torque input, and includes a swivel block, a linkage, a universal joint coupler, and a fastener. The swivel block has opposite laterally extending trunnions. The linkage extends parallel to the rotational axis, and laterally captures the laterally extending trunnions. The universal joint coupler is disposed around the swivel block and adjacent the linkage. The fastener connects the universal joint to the swivel block. The fastener and the laterally extending trunnions cooperate to transmit torque about the rotational axis through the linkage, while permitting lateral translation of the universal joint coupler in a plane orthogonal to the rotational axis.
(FR)
Une pompe à cavité progressive comprend une entrée de couple se situant sur un axe de rotation, un cylindre stator élastique, un rotor à vis se situant à l'intérieur du cylindre stator élastique, et un joint de cardan. Le joint de cardan accouple en rotation le rotor à vis et l'entrée de couple et comprend un bloc pivotant, un élément de liaison, un coupleur à joint de cardan et un élément de fixation. Le bloc pivotant comporte des tourillons opposés s'étendant latéralement. L'élément de liaison s'étend parallèlement à l'axe de rotation et capture latéralement les tourillons s'étendant latéralement. Le coupleur à joint de cardan est agencé autour du bloc pivotant et de façon adjacente à l'élément de liaison. L'élément de fixation relie le joint de cardan au bloc pivotant. L'élément de fixation et les tourillons s'étendant latéralement coopèrent pour transmettre le couple autour de l'axe de rotation par l'intermédiaire de l'élément de liaison, tout en permettant une translation latérale du coupleur à joint de cardan dans un plan orthogonal à l'axe de rotation.
Latest bibliographic data on file with the International Bureau