Drive pulley for improved service of engine mounted accessories

Details Drive pulley for improved service of engine mounted accessories Drive pulley for improved service of engine mounted accessories

1998-02-03

2000-07-18

Walberg, Teresa

Pumps

Motor driven

Pump and motor interconnected by endless flexible...

474 97, F04B 1700

Patent

active

06089833&

ABSTRACT:
Coolant pump service in a crowded engine compartment is provided by forming the side wall of the pump drive pulley with a centralized and radially lobed opening which can accommodate the radial arms of the drive hub that are normally connected by screws to the pulley side wall. The drive hub is fixed to the outboard end of the coolant pump drive shaft that extends through the housing of the pump that is removably secured by screws to the block of an internal combustion engine. The pump impeller is mounted on the inboard end of the drive shaft for fluid pumping operation in a coolant-receiving cavity in the coolant circuit of the engine. In the event of interference, which prevents or hampers the removal of the pulley axially from the drive shaft, the hub screws are removed and the pulley is turned into alignment with the lobes of the opening so that the pump housing screws are accessible. These screws are then removed so that the pump can be manually removed from the clearance between the engine and the frame side rail or other interfering component.

REFERENCES:
patent: 3741025 (1973-06-01), Russell
patent: 4694660 (1987-09-01), Gannaway
patent: 5409350 (1995-04-01), Mitchell
patent: 5537956 (1996-07-01), Rennfeld et al.
"Auto Service and Repair"; The Goodheart-Willcox Compnay, Inc.; by Martin W. Stockel and Martin T. Stockel.

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