Tempering device for printing presses

Details Tempering device for printing presses Tempering device for printing presses

2007-01-09

2007-01-09

Nguyen, Judy (Department: 2854)

Printing

Processes

With heating or cooling

C101S480000, C062S175000, C062S515000, C062S520000

Reexamination Certificate

active

10991086

ABSTRACT:
A tempering device for printing presses, includes a compression refrigerating plant with a condenser and an evaporator, in which a coolant circulates in a compression refrigerating path, and a free cooling path, in which a coolant circulates. A process water path circulates a coolant for either printing rollers or a fountain solution for offset printing. A heat exchanger arrangement cools the process water path with the help of the compression refrigerating plant and/or the free cooling path. The heat exchanger arrangement includes a three-media heat exchanger, in which heat is exchanged between the process water path and the compression refrigerating plant as well as the free cooling path.

REFERENCES:
patent: 5657637 (1997-08-01), Mertens
patent: 5720221 (1998-02-01), Harig et al.
patent: 5893411 (1999-04-01), Nir
patent: 5974817 (1999-11-01), Prummer
patent: 6089313 (2000-07-01), Levy et al.
patent: 6789470 (2004-09-01), Luebcke
patent: 2003/0029342 (2003-02-01), De Vroome
patent: 297 16 582 (1997-12-01), None

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