EP 0928899 A3 20000503 - Once-through blower

Title (en)

Once-through blower

Title (de)

Querstromlüfter

Title (fr)

Ventilateur à courant transversal

Publication

EP 0928899 A3 20000503 (EN)

Application

EP 98114422 A 19980731

Priority

JP 360698 A 19980112

Abstract (en)

[origin: EP0928899A2] A once-through blower including a once-through impeller (8) is described. The blower includes a blowout duct (10), a stabilizer (13) and a scroll casing (9). The stabilizer (13) provided at an end of the blowout duct (10) so as to face the once-through impeller (8). The scroll casing (9) is provided at the back of the once-through impeller (8) and connected to the blowout duct (10). The stabilizer (13) has a curved surface (18) which is formed along an arc (15). The diameter of the arc (15) is 103% or more of that of the once-through impeller (8). The scroll casing (9) has an interior curved surface (19) which is formed along a casing arc. The casing arc is concentric with the arc center (21). A clearance between a predetermined outer peripheral point (23) of the once-through impeller (8) and the inflow-side end of the scroll casing (9) is set so as to become 3% or more of the diameter of the once-through impeller (8). <IMAGE>

IPC 1-7

F04D 17/04; F04D 29/42

IPC 8 full level

F04D 17/04 (2006.01); F04D 29/42 (2006.01); F24F 1/00 (2011.01)

CPC (source: EP)

F04D 17/04 (2013.01); F04D 29/422 (2013.01)

Citation (search report)

[A] EP 0303543 A1 19890215 - FRANCE ETAT [FR], et al
[A] DE 2934987 A1 19810319 - ZENKNER KURT DR ING
[A] DE 8034229 U1 19860703
[AD] PATENT ABSTRACTS OF JAPAN vol. 1996, no. 03 29 March 1996 (1996-03-29)
[AD] PATENT ABSTRACTS OF JAPAN vol. 018, no. 094 (M - 1561) 16 February 1994 (1994-02-16)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0928899 A2 19990714; EP 0928899 A3 20000503; EP 0928899 B1 20040107; CN 1115523 C 20030723; CN 1223360 A 19990721; DE 69820976 D1 20040212; DE 69820976 T2 20041021; ES 2212179 T3 20040716; HK 1021656 A1 20000623; JP 3649567 B2 20050518; JP H11201487 A 19990730; TW 360767 B 19990611

DOCDB simple family (application)

EP 98114422 A 19980731; CN 98118773 A 19980827; DE 69820976 T 19980731; ES 98114422 T 19980731; HK 00100364 A 20000120; JP 360698 A 19980112; TW 87111265 A 19980710