EP 2853748 A4 20160615 - VACUUM PUMP
Title (en)
VACUUM PUMP
Title (de)
VAKUUMPUMPE
Title (fr)
POMPE À VIDE
Publication
Application
Priority
- JP 2012116489 A 20120522
- JP 2013063629 W 20130516
Abstract (en)
[origin: EP2853748A1] A vacuum pump 1 includes a pump means 2 for compressing gas inhaled from an intake port 11b and discharging the compressed gas from an exhaust port 12b and a motor 3 for driving the pump means. A housing 4 which houses a stator core 22 and serves as a motor casing of the motor is provided to form a cooling passage Sc between the outer surface of the stator core and the inner surface of the housing and the gas discharged from the exhaust port of the pump means is circulated into the cooling passage to cool the motor. Cooling the motor allows maintaining not only the performance of the motor but also the suction performance of the pump means.
IPC 8 full level
F04C 25/02 (2006.01); F04C 29/04 (2006.01)
CPC (source: EP)
F04C 18/3441 (2013.01); F04C 23/008 (2013.01); F04C 29/045 (2013.01); F04C 29/047 (2013.01); F04C 29/12 (2013.01); F04C 25/02 (2013.01); F04C 2220/10 (2013.01)
Citation (search report)
- [XI] EP 1770243 A2 20070404 - ANEST IWATA CORP [JP]
- [XI] US 2006255667 A1 20061116 - ZHONG JIANPING [US]
- [I] JP 2004156446 A 20040603 - TOKICO LTD
- [A] JP 2007023958 A 20070201 - MATSUSHITA ELECTRIC IND CO LTD
- [A] US 5215452 A 19930601 - YAMAMURA MICHIO [JP], et al
- [A] EP 1936198 A2 20080625 - PFEIFFER VACUUM GMBH [DE]
- [A] EP 1967736 A1 20080910 - DAIKIN IND LTD [JP]
- See references of WO 2013176028A1
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
DOCDB simple family (publication)
EP 2853748 A1 20150401; EP 2853748 A4 20160615; JP 2013241907 A 20131205; WO 2013176028 A1 20131128
DOCDB simple family (application)
EP 13793663 A 20130516; JP 2012116489 A 20120522; JP 2013063629 W 20130516