Page pack having novel heat sink arrangement for pump motor driv

Details Page pack having novel heat sink arrangement for pump motor driv Page pack having novel heat sink arrangement for pump motor driv

1994-06-10

1995-12-05

Bertsch, Richard A.

Pumps

Motor driven

Electric or magnetic motor

417313, 417539, 347 18, F04B 2100, F04B 1100, B41J 29377

Patent

active

054723248

ABSTRACT:
A page pack for a printing press wherein the housing for the ink pump and motor assemblies also serves as a heat sink for the heat generated by the motor drive units. The housing comprises a body for receiving a plurality of positive displacement ink pumps each comprising a pump cylinder and at least one pump piston, with all such bores being arranged substantially parallel to each other and lying in a given plane. The housing includes openings for accommodating pump drive motors with their output shafts arranged so as to lie parallel to each other and in a plane slightly offset from an intersecting plane in which the pumps are positioned. The pump housing further includes means for positioning a motor control circuitboard in the housing such that a plurality of individual high current driver units each has its own metal heat sink, and such that these individual heat sinks are secured in use to a master metal heat sink either positioned adjacent or forming a part of the housing, whereby there is an intimate heat exchange relation between the motor driver units and the housing.

REFERENCES:
patent: 4191240 (1980-04-01), Rule et al.
patent: 4281597 (1981-08-01), Dressler
patent: 4521805 (1985-06-01), Ayata et al.
patent: 4539570 (1985-09-01), Moore
patent: 4985715 (1991-01-01), Cryphert et al.
patent: 5066964 (1991-11-01), Fukada
patent: 5092748 (1992-03-01), Simmons, II
patent: 5121130 (1992-06-01), Hempel et al.

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