ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRIS..MTNORSMESM..................JDIM360 Ver 2.15 (14 Jul 2008) - 1620000/02372162EUROPEAN PATENT APPLICATIONA320121031EP11159937.920110328enenen09910955320100330TW2012103120124420111005201140F04D 29/22 20060101AFI20120926BHEP dePumpenlaufradenPump impellerfrTurbine de pompe2Yu Shen Machinery Co., Ltd.101238015MUB11-1295EP3F., No. 20, Aly. 23, Ln. 281, Sec. 3 Zhongyang Road Tucheng DistrictNew Taipei CityTWYang, Yung-Sho3F., No. 20, Aly. 23, Ln. 281, Sec. 3, Zhongyang Rd., Tucheng Dist.New Taipei CityTWHorak, Michael101305396Horak Rechtsanwälte Georgstrasse 4830159 HannoverDEALATBEBGCHCYCZDEDKEEESFIFRGBGRHRHUIEISITLILTLULVMCMKMTNLNOPLPTRORSSESISKSMTRBAME20121031201244

A pump impeller has two impeller bodies (10, 10A, 20, 20A) attached to each other. Each impeller body (10, 10A, 20, 20A) has an annular base wall (11, 11A, 21, 21A) and multiple partition protrusions (12, 12A, 22, 22A) separately formed on an inner surface of the base wall (11, 11A, 21, 21A). Multiple outlet channels (30, 30A) are respectively defined between the partition protrusions (12, 12A, 22, 22A). Each outlet channel (30, 30A) has a cross-sectional area decreasing from an inner end to an outer open end of the outlet channel (30, 30A). Thus, liquid flowing through the outlet channels (30, 30A) does not become turbulent and a working efficiency of a pump with the pump impeller is certainly improved.

MUB11-1295EPEP11159937.9Yu Shen Machinery Co., Ltd.2DH20121002F04DUS538050AWILLIAM SWABEL18950423X1,2* figure 1 *Y3,5-8* figure 2 ** figure 3 ** figure 4 ** page 1, line 62 - line 72 *US6210116B1KUCZAJ JOHN E [US] ET AL20010403X1,2,4* figure 3 ** figure 9 ** column 3, line 37 - line 40 *US3285187AANDERSON JR GORDON R19661115Y3* figure 1 ** figure 2 *US2999628ACROMBIE JOSEPH S19610912Y5-8* figure 2 ** figure 3 ** figure 4 ** column 2, line 10 - line 13 *GB1081163AULRICH MAX WILLI BARSKE; WILLIAM MURRAY19670831A5* figure 1 ** figure 4 *de Verbigier, LThe Hague20120917US538050A18950423NONEUS6210116B120010403NONEUS3285187A19661115NONEUS2999628A19610912NONEGB1081163A19670831BE650777A19650120CH438035A19670615CH439978A19670715DE1453723A119690731GB1081163A19670831GB1081164A19670831NL6408151A19650120US3244109A19660405