F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
257/20
F28F 19/00 (2006.01) B01D 35/18 (2006.01) F01M 11/03 (2006.01) F28D 7/02 (2006.01) F28F 1/36 (2006.01)
Patent
CA 1246051
A B S T R A C T A self-contained, wall-mountable cooling and filtering unit for hydraulic drive fluid featuring a coiled heat trans- fer pipe in a coil chamber which surrounds a drum-type filter cartridge, the hot fluid flowing through the coil chamber in the axial direction, before traversing the filter cartridge in a radial inward direction and exiting from the device. The heat transfer pipe is a finned pipe with an integral helical fin having is originally radial fin wall bent away at four folding lines in a rectangle, to form aligned fold segments in four longitudinal surface planes. The fold segments sup- port superposed pipe turns in the heat transfer coil while positioning the latter against the walls of the coil chamber.
473273
Hehl Karl
Macrae & Co.
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