Global Patent Index - EP 3726055 A4

EP 3726055 A4 20201111 - VACUUM PUMP VENT PIPE SILENCER AND REFRIGERATOR HAVING SAME

Title (en)

VACUUM PUMP VENT PIPE SILENCER AND REFRIGERATOR HAVING SAME

Title (de)

SCHALLDÄMPFER FÜR VAKUUMPUMPENENTLÜFTUNGSROHR UND KÜHLSCHRANK DAMIT

Title (fr)

SILENCIEUX DE TUYAU D'ÉVENT DE POMPE À VIDE ET RÉFRIGÉRATEUR LE COMPRENANT

Publication

EP 3726055 A4 20201111 (EN)

Application

EP 18889024 A 20181207

Priority

  • CN 201711311262 A 20171211
  • CN 2018119773 W 20181207

Abstract (en)

[origin: WO2019114625A1] Provided is a silencer (300), comprising a hollow cavity jointly enclosed by a first bottom face (310), a second bottom face (320) and a side wall (330), wherein the side wall (330) is connected to the first bottom face (310) and the second bottom face (320); one end of the silencer (300) is provided with an air inlet (340), and the other opposite end is provided with an air outlet (350); the cavity is divided into a plurality of chambers in an axial direction, the chambers comprising a first chamber (361) adjacent to the first bottom face (310), a second chamber (363) adjacent to the second bottom face (320), and a middle chamber (362) located between the first chamber (361) and the second chamber (363); the air inlet (340) is in air communication with the middle chamber (362); the middle chamber (362) is in air communication with the second chamber (363); the first chamber (361) is in air communication with the second chamber (363); and the air outlet (350) is in air communication with the first chamber (361). The silencer (300) further comprises a first guide pipe (371), a second guide pipe (372), a third guide pipe (373) and a fourth guide pipe (374), wherein the air inlet (340) is in communication with the middle chamber (362) via the first guide pipe (371), the middle chamber (362) is in communication with the second chamber (363) via the second guide pipe (372), the first chamber (361) is in communication with the second chamber (363) via the third guide pipe (373), and the first chamber (361) is in communication with the air outlet (350) via the fourth guide pipe (374); and the first guide pipe (371), the second guide pipe (372), the third guide pipe (373) and the fourth guide pipe (374) are configured to be successively arranged in the direction of an air path.

IPC 8 full level

F04B 39/00 (2006.01); F24F 13/24 (2006.01)

CPC (source: CN EP)

F04B 39/00 (2013.01 - EP); F04B 39/0027 (2013.01 - EP); F04B 39/0033 (2013.01 - EP); F04B 39/0055 (2013.01 - EP); F04B 39/0061 (2013.01 - EP); F04B 39/0083 (2013.01 - CN EP); F24F 13/24 (2013.01 - CN EP); F24F 2013/247 (2013.01 - CN EP)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3726055 A1 20201021; EP 3726055 A4 20201111; AU 2018386133 A1 20200625; CN 107989774 A 20180504; WO 2019114625 A1 20190620

DOCDB simple family (application)

EP 18889024 A 20181207; AU 2018386133 A 20181207; CN 201711311262 A 20171211; CN 2018119773 W 20181207