Global Patent Index - EP 4177465 A1

EP 4177465 A1 20230510 - VACUUM PUMP APPARATUS

Title (en)

VACUUM PUMP APPARATUS

Title (de)

VAKUUMPUMPENVORRICHTUNG

Title (fr)

APPAREIL DE POMPE À VIDE

Publication

EP 4177465 A1 20230510 (EN)

Application

EP 22205764 A 20221107

Priority

JP 2021182249 A 20211109

Abstract (en)

A vacuum pump apparatus capable of maintaining an inside of a rotor chamber (1) of a pump casing (2) at a high temperature and capable of being easily attached and removed a heater (70A,70B) is disclosed. The vacuum pump apparatus includes: a pump casing (2); a pump rotor (5) arranged in the rotor chamber; a rotation shaft (7) to which the pump rotor is fixed; an electric motor (8) coupled to the rotation shaft; a side cover (10a, 10B) forming an end surface of the rotor chamber; a housing structure located outwardly of the side cover in an axial direction of the rotation shaft; and a cartridge heater (70A, 70B) disposed in the side cover and removably attached to the side cover or the pump casing. The cartridge heater has a heater and a heater casing (71) covering at least a part of the heater, and the heater casing has a slit ( 72A) extending from one end to other end thereof.

IPC 8 full level

F04B 37/14 (2006.01); F04B 53/08 (2006.01); F04C 25/02 (2006.01); F04C 29/04 (2006.01)

CPC (source: CN EP KR)

F04B 37/14 (2013.01 - EP); F04B 53/08 (2013.01 - EP); F04C 23/02 (2013.01 - CN KR); F04C 25/02 (2013.01 - CN EP KR); F04C 29/0085 (2013.01 - KR); F04C 29/04 (2013.01 - CN EP KR); F04C 2220/10 (2013.01 - KR); F04C 2240/20 (2013.01 - KR); F04C 2240/30 (2013.01 - KR); F04C 2240/40 (2013.01 - KR); F04C 2240/60 (2013.01 - KR); F05B 2240/20 (2013.01 - KR); F05B 2240/60 (2013.01 - KR); F05B 2260/30 (2013.01 - KR)

Citation (applicant)

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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4177465 A1 20230510; CN 116104762 A 20230512; JP 2023070219 A 20230519; KR 20230068302 A 20230517; TW 202331101 A 20230801

DOCDB simple family (application)

EP 22205764 A 20221107; CN 202211386301 A 20221107; JP 2021182249 A 20211109; KR 20220139940 A 20221027; TW 111142439 A 20221107