F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
F02M 31/125 (2006.01) F02M 37/22 (2006.01)
Patent
CA 2646153
The present invention relates to a heating device (1) for fuel with at leas one PTC heating element (5) and a heat transfer device (6) in thermal contact with the latter, which exhibits two heat transfer elements (7, 7'), and with a tubular casing (2) made of plastic that envelop the heat transfer device (6) and the a least one PTC heating element (5), wherein the diesel fuel to be heated flows through the casing (2) and around the heat transfer device (6) during operation of the heating device (1). Provided on the interior side of the tubular casing (2) is a guiding device that interacts with the at least one PTC heating element (5) and/or the heat transfer device (6) in such a way that at least one PTC heating element (5) and the heat transfer device (6) can be axially inserted into the casing (2) for assembling the heating device (1). Of significance relative to the invention in this case is that a spring system (8, 18) separate from the heat transfer device (6) is provided, which tensions the heat transfer device (6) against the guiding device so as to fix it in place.
Beetz Klaus
Kissner Gerd
Fetherstonhaugh & Co.
Mahle International Gmbh
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