(19)

(11)

EP 2 691 653 A2

(12)

(88) Date of publication A3: 29.11.2012 (43) Date of publication: 05.02.2014 Bulletin 2014/06 (21) Application number: 12765121.4 (22) Date of filing: 30.03.2012

(51) International Patent Classification (IPC):  F04C 29/02(2006.01) F04C 18/02(2006.01) (86) International application number: PCT/US2012/031621 (87) International publication number: WO 2012/135727 (04.10.2012 Gazette 2012/40)

(84) Designated Contracting States: 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 (30) Priority: 31.03.2011 CN 201110089527 31.03.2011 CN 201120103771 U (71) Applicant: Emerson Climate Technologies, Inc. Sidney, OH 45365-0669 (US)	(72) Inventors: WU, Jibao Suzhou 215021 (CN) SUN, Qingfeng Jiangsu 215021 (CN) (74) Representative: Roberts, Mark Peter  J A Kemp 14 South Square Gray's Inn London WC1R 5JJ London WC1R 5JJ (GB)