Ronald J Mellum

US Patent:

8365520, Feb 5, 2013

Filed:

Feb 13, 2009

Appl. No.:

12/378484

Inventors:

Anthony T. Klejeski - Bethel MN, US
Ronald J. Mellum - Delano MN, US
Lowell K. Siewert - Brooklyn Park MN, US

Assignee:

Cummins Power Generation IP, Inc. - Minneapolis MN

International Classification:

F01N 1/00
F01N 3/00
F01B 21/04
F01K 23/00
F02B 73/00
F02B 25/00

US Classification:

60324, 60287, 60297, 60698, 60706

Abstract:

A system is disclosed including a primary engine that provides vehicle propulsion and a secondary engine that drives a generator to provide auxiliary power. The system further includes a first exhaust gas passageway from the primary engine and a second exhaust gas passageway from the secondary engine. The system further includes an emission treatment device including an exhaust inlet to treat exhaust from the primary and secondary engines. The system further includes an exhaust routing device that selectively routes exhaust from the first passageway or the second passageway to the exhaust inlet. The exhaust routing device at least partially blocks the first passageway or the second passageway from fluid communication with the exhaust inlet.

US Patent:

53336780, Aug 2, 1994

Filed:

Mar 6, 1992

Appl. No.:

7/847946

Inventors:

Ronald J. Mellum - Delano MN
Peter M. Hawkins - Mounds View MN
Glennard M. Kline - Anoka MN
Deborah A. Klinkert - St. Louis Park MN
Ronald G. McFarlane - Seattle WA
Gary P. Hansen - Federal Way WA

Assignee:

Onan Corporation - Minneapolis MN

International Classification:

B60H 300

US Classification:

165 42

Abstract:

The present invention is directed to an auxiliary power unit for use with a vehicle, typically a truck. The truck has a cab and a sleeper to which the auxiliary power unit provides auxiliary air conditioning and heating. The truck also has a cab evaporator, a sleeper evaporator, a compressor, a condenser, and a plurality of refrigerant lines, a cab heater, a sleeper heater, and a plurality of coolant lines. The auxiliary power unit has an auxiliary evaporator and a plurality of auxiliary refrigerant lines. The auxiliary evaporator is arranged in series with the sleeper evaporator and the sleeper heater. The auxiliary refrigerant lines are separate and distinct from the truck's plurality of refrigerant lines. The auxiliary power unit also has a plurality of auxiliary coolant lines which are interconnected with the truck's plurality of coolant lines. The interconnection is accomplished in such a way that the auxiliary power unit can provide heat to the sleeper heater when the truck engine is running or when the truck is not running.