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1. WO1996002799 - REFRIGERATION SYSTEM AND PUMP THEREFOR

Publication Number WO/1996/002799
Publication Date 01.02.1996
International Application No. PCT/US1995/008766
International Filing Date 13.07.1995
Chapter 2 Demand Filed 15.02.1996
IPC
F01C 21/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
21Component parts, details, or accessories, not provided for in groups F01C1/-F01C20/121
02Arrangements of bearings
F04C 23/00 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
23Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F25D 16/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
16Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
CPC
F01C 21/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
21Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
02Arrangements of bearings
F04C 23/008
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
23Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
008Hermetic pumps
F04C 29/0064
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
29Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
0042Driving elements, brakes, couplings, transmissions specially adapted for pumps
005Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
0064Magnetic couplings
F04C 29/12
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
29Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
12Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F25D 16/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
16Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
Y10S 417/902
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
417Pumps
902Hermetically sealed motor pump unit
Applicants
  • DELAWARE CAPITAL FORMATION, INC. [US/US]; Suite 102 1403 Foulkstone Plaza Wilmington, DE 19803, US
Inventors
  • STOLL, Thomas, D.; US
  • SWITEK, Lawrence, Edward; US
Agents
  • VISSERMAN, Peter; Varnum, Riddering, Schmidt & Howlett LLP Bridgewater Place P.O. Box 352 Grand Rapids, MI 49501-0352, US
Priority Data
08/276,05415.07.1994US
08/475,07307.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REFRIGERATION SYSTEM AND PUMP THEREFOR
(FR) SYSTEME DE REFRIGERATION ET POMPE UTILISEE DANS CELUI-CI
Abstract
(EN)
A refrigeration system is disclosed in which negative energy storage is provided to significantly reduce electrical energy consumption during peak air conditioning hours. A transfer pump (54) is provided in the system for pumping condensed and mixed phase refrigerant from the negative energy storage to an evaporator coil (18) where it absorbs heat energy from an air conditioned space. The transfer pump is a positive displacement pump employing a rotor (100) and vanes (102) rotating in a pumping chamber (106). Dual inlets (262) and discharges (258) from the pumping chamber are located to balance forces on the rotor. The inlets enter the pumping chamber radially. A hermetic enclosure (184) seals the pump and an electric drive motor (180) to eliminate dynamic seals within the pump and thereby greatly reduce leakage of refrigerant from the system. A refrigeration overfeed system using a hermetically sealed pump according to the invention is also disclosed.
(FR)
L'invention se rapporte à un système de réfrigération à stockage négatif d'énergie permettant de réduire considérablement la consommation d'énergie électrique pendant les heures de pointe liées au conditionnement d'air. Une pompe de transfert (54) est ménagée dans le système pour faire passer le réfrigérant condensé et à phases mélangées du stockage négatif d'énergie vers un serpentin d'évaporation (18) dans lequel le réfrigérant absorbe l'énergie thermique d'un espace d'air conditionné. La pompe de transfert est une pompe volumétrique comportant un rotor (100) et des pales (102) tournant dans une chambre de pompage (106). Les doubles passages d'une part d'admission (262) et d'autre part d'évacuation (258) de la chambre de pompage sont placés de manière à équilibrer les forces agissant sur le rotor. Les passages d'admission pénètrent radialement dans la chambre de pompage. Une enceinte hermétique (184) renferme de façon étanche la pompe ainsi qu'un moteur électrique (180) ce qui permet d'éliminer les joints d'étanchéité dynamiques dans la pompe et de réduire considérablement les fuites de réfrigérant du système. L'invention se rapporte également à un système de réfrigération suralimenté utilisant la pompe à enceinte étanche décrite.
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