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1. WO2019221426 - COMPRESSOR

Publication Number WO/2019/221426
Publication Date 21.11.2019
International Application No. PCT/KR2019/005263
International Filing Date 02.05.2019
IPC
F04C 18/02 2006.1
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
18Rotary-piston pumps specially adapted for elastic fluids
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
F04C 29/12 2006.1
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
29Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups F04C18/-F04C28/193
12Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
CPC
F04C 18/0215
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
18Rotary-piston pumps specially adapted for elastic fluids
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
0207both members having co-operating elements in spiral form
0215where only one member is moving
F04C 18/0261
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
18Rotary-piston pumps specially adapted for elastic fluids
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
0207both members having co-operating elements in spiral form
0246Details concerning the involute wraps or their base, e.g. geometry
0253Details concerning the base
0261Details of the ports, e.g. location, number, geometry
F04C 29/0007
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
0007Injection of a fluid in the working chamber for sealing, cooling and lubricating
F04C 29/124
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
124with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
F04C 29/126
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
124with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
126of the non-return type
Applicants
  • LG ELECTRONICS INC. [KR]/[KR]
Inventors
  • CHOI, Jungsun
  • PARK, Sangbaek
  • KIM, Cheolhwan
Agents
  • KBK & ASSOCIATES
Priority Data
10-2018-005674317.05.2018KR
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COMPRESSOR
(FR) COMPRESSEUR
Abstract
(EN) The present disclosure relates to a compressor with a refrigerant injection function, which secures an amount of refrigerant in circulation and actively copes with a change in the temperature of exterior air, thereby improving cold weather performance. The compressor includes a plurality of inlets for injecting refrigerant into a compression chamber after the refrigerant is completely sucked in, and provides a structure in which the refrigerant may be injected at different pressures into the compression chamber. An inlet may be branched into two or more inlets and connected to two or more injection holes formed at different positions.
(FR) La présente invention concerne un compresseur avec une fonction d'injection d'agent réfrigérant, lequel compresseur fixe une quantité d'agent réfrigérant en circulation et lequel s'adapte activement à un changement de la température de l'air extérieur, de façon à améliorer ainsi les performances par temps froid. Le compresseur comprend une pluralité d'entrées pour injecter un agent réfrigérant dans une chambre de compression après que l'agent réfrigérant a été complètement aspiré, et produit une structure dans laquelle l'agent réfrigérant peut être injecté sous différentes pressions dans la chambre de compression. Une entrée peut être ramifiée en deux ou plus de deux entrées et reliée à deux ou plus de deux trous d'injection formés dans des positions différentes.
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