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1. US20210180581 - VACUUM PUMP EXHAUST PIPE MUFFLER AND REFRIGERATOR HAVING SAME

Office
États-Unis d'Amérique
Numéro de la demande 16771644
Date de la demande 07.12.2018
Numéro de publication 20210180581
Date de publication 17.06.2021
Type de publication A1
CIB
F04B 39/00
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
04"MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF; POMPES À LIQUIDES OU À FLUIDES COMPRESSIBLES
B"MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF; POMPES
39Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes F04B25/-F04B37/210
F25D 17/06
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
25RÉFRIGÉRATION OU REFROIDISSEMENT; SYSTÈMES COMBINÉS DE CHAUFFAGE ET DE RÉFRIGÉRATION; SYSTÈMES À POMPES À CHALEUR; FABRICATION OU EMMAGASINAGE DE LA GLACE; LIQUÉFACTION OU SOLIDIFICATION DES GAZ
DRÉFRIGÉRATEURS; CHAMBRES FROIDES; GLACIÈRES; APPAREILS DE REFROIDISSEMENT OU DE CONGÉLATION NON COUVERTS PAR UNE AUTRE SOUS-CLASSE
17Dispositions pour la circulation des fluides de refroidissement; Dispositions pour la circulation de gaz, p.ex. d'air, dans les enceintes refroidies
04pour la circulation de gaz, p.ex. convection naturelle
06par circulation d'air forcée
CPC
F25D 2317/0681
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 OTHERWISE PROVIDED FOR
2317Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
06with forced air circulation
068characterised by the fans
0681Details thereof
F04B 39/0061
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
0027Pulsation and noise damping means
0055with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
0061using muffler volumes
F25D 17/062
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 OTHERWISE PROVIDED FOR
17Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
04for circulating air, e.g. by convection
06by forced circulation
062in household refrigerators
Déposants QINGDAO HAIER CO., LTD.
Inventeurs CHUN YANG
JIANQUAN CHEN
HAO ZHANG
ENPIN XIA
Données relatives à la priorité 201711311262.X 11.12.2017 CN
Titre
(EN) VACUUM PUMP EXHAUST PIPE MUFFLER AND REFRIGERATOR HAVING SAME
Abrégé
(EN)

A muffler comprising a hollow cavity enclosed by a first bottom surface, a second bottom surface and a side wall, the side wall connects the first bottom surface with the second bottom surface, an air inlet at one end of the hollow cavity and an air outlet at the other end of the hollow cavity; the cavity is divided into a plurality of chambers in an axial direction, the chambers comprise a first chamber adjacent to the first bottom surface, a second chamber adjacent to the second bottom surface and an intermediate chamber located between the first chamber and the second chamber, the air inlet is in gas communication with the intermediate chamber, and the air outlet is in gas communication with the first chamber.