EP 0761157 A1 19970312 - Power increase of PTC heating element via spray jet
Title (en)
Power increase of PTC heating element via spray jet
Title (de)
Leistungssteigerung eines PTC Heizelementes durch ein Sprühstrahl
Title (fr)
Augmentation de puissance d'un élément de chauffage PTC grâce à un jet d'arrosage
Publication
Application
Priority
US 52433195 A 19950906
Abstract (en)
An apparatus for increasing the power draw of a positive temperature coefficient heating element (400) in a washer (10) when the heating element is not submerged in fluid. The washer includes the heating element (400), a tub (20) with a sump (28), a hub (40), a pump (80) and a spray arm (100). The pump circulates the fluid from the sump throughout the tub. Disposed around the sump is the heating element. Projecting upward from the sump is the hub which has a passage for conveying fluid from the pump to the top of the hub. The spray arm is substantially hollow and is rotatably mounted to the top of the hub. The spray arm receives fluid from the passage in the hub and projects sprays of fluid into the tub, causing the spray arm to rotate. At least one of the sprays (340,380) is directed downward onto the heating element (400) during the rotational travel of the spray arm so as to substantially wet the heating element when the heating element is not submerged in fluid, thereby cooling the heating element and increasing its power draw. <IMAGE>
IPC 1-7
IPC 8 full level
A47L 15/23 (2006.01); A47L 15/42 (2006.01)
CPC (source: EP)
A47L 15/23 (2013.01); A47L 15/4285 (2013.01)
Citation (search report)
- [A] DE 3716954 A1 19881201 - BOSCH SIEMENS HAUSGERAETE [DE]
- [AD] US 3207164 A 19650921 - FAY JOHN A
- [A] US 3709236 A 19730109 - FIELD T, et al
- [A] DE 8802328 U1 19880811
- [A] US 4418868 A 19831206 - GURUBATHAM VINCENT P [US], et al
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 96111705 A 19960719; CA 2180064 A 19960627