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1. WO2022112341 - SCROLL COMPRESSOR WITH DISCHARGE CHECK VALVE

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Publication Number WO/2022/112341
Publication Date 02.06.2022
International Application No. PCT/EP2021/082843
International Filing Date 24.11.2021
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
F04C 23/00 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
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
CPC
F04B 39/1013
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
39Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
10Adaptations or arrangements of distribution members
1013the members being of the poppet valve type
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 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 29/126
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
F16K 15/063
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
06with guided stems
063the valve being loaded by a helicoidal spring
H02S 20/26
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
20Supporting structures for PV modules
20Supporting structures directly fixed to an immovable object
22specially adapted for buildings
26Building materials integrated with PV modules, e.g. façade elements
Applicants
  • DANFOSS COMMERCIAL COMPRESSORS [FR]/[FR]
Inventors
  • LAVY, Julien
  • GENEVOIS, David
  • BOU DARGHAM, Remi
  • STREDA, Gabriel
Agents
  • STEVENS, Brian
Priority Data
FR201210525.11.2020FR
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SCROLL COMPRESSOR WITH DISCHARGE CHECK VALVE
(FR) COMPRESSEUR À SPIRALE AVEC SOUPAPE ANTIRETOUR DE REFOULEMENT
front page image
Abstract
(EN) Discharge check valve assembly (18) including a tubular valve housing (21) having a first end portion (21.1) configured to be arranged inside a compressor shell (2) and a second end portion (21.2) configured to be arranged outside the compressor shell (2); a valve seat (24) located within the tubular valve housing (21); a valve member (25) movable between a closed position in which the valve member (25) bears against the valve seat (24) and an open position in which the valve member (25) is remote from the valve seat (24); and a valve body (26) arranged within the tubular valve housing (21) and comprising a ring-shaped attachment portion (27) fixed to an inner surface of the tubular valve housing (21), the valve body (26) further comprising a guiding portion (28) which is configured to guide the valve member (25) between the closed and open positions and which is connected to the ring-shaped attachment portion (27) by at least two connecting arms (29) protruding from an outer surface of the guiding portion (28), the outer surface of the guiding portion (28) having a cross-section which tapers towards the second end portion (21.2) of the tubular valve housing (21) and away from the valve seat (24).
(FR) L'invention concerne un ensemble soupape antiretour de refoulement (18) comprenant un logement de soupape tubulaire (21) comportant une première partie terminale (21.1) conçue pour être disposée à l'intérieur d'une coque de compresseur (2) et une deuxième partie terminale (21.2) conçue pour être disposée à l'extérieur de la coque de compresseur (2) ; un siège de soupape (24) situé à l'intérieur du logement de vanne tubulaire (21) ; un élément de soupape (25) mobile entre une position fermée dans laquelle l'élément de soupape (25) s'appuie contre le siège de soupape (24) et une position ouverte dans laquelle l'élément de soupape (25) est éloigné du siège de soupape (24) ; et un corps de soupape (26) disposé à l'intérieur du logement de soupape tubulaire (21) et comprenant une partie de fixation en forme d'anneau (27) fixée à une surface intérieure du logement de soupape tubulaire (21), le corps de soupape (26) comprenant aussi une partie de guidage (28) qui est conçue pour guider l'élément de soupape (25) entre la position fermée et la position ouverte et qui est relié à la partie de fixation en forme d'anneau (27) par au moins deux bras de liaison (29) dépassant d'une surface extérieure de la partie de guidage (28), la surface extérieure de la partie de guidage (28) ayant une section transversale qui s'effile vers la deuxième partie terminale (21.2) du logement de soupape tubulaire (21) et en s'éloignant du siège de soupape (24).
Latest bibliographic data on file with the International Bureau
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