Cooled pump pulley

Details Cooled pump pulley Cooled pump pulley

2003-06-11

2009-11-17

Siconolfi, Robert A (Department: 3657)

Endless belt power transmission systems or components

Fluid-impelling means

C474S166000, C474S184000, C474S188000, C417S366000, C417S362000

Reexamination Certificate

active

07618338

ABSTRACT:
A composite automotive pulley wheel and pump comprises a pulley wheel (2) and a pump (22). The pump comprises an impeller (20) carried on a rotary shaft (6), an inlet region (24) and an outlet region (26). The pulley is mounted on the shaft (6) and comprises a radially outwardly extending support (4) connected to an annular axially extending flange (10, 12), the outer surface of which is adapted to be engaged by a pulley belt. The flange (4) defines a cooling fluid passage (14) within it which extends in the circumferential direction and communicates at two circumferentially spaced positions with an inlet passage (16) and an outlet passage (18), respectively. The inlet and outlet passages (16, 18) extend through the support (4) and the shaft (6) and communicate with the outlet region (26) and the inlet region (24), respectively.

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