Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1978-05-26
1980-08-26
Davis, Albert W.
Heat exchange
Movable heating or cooling surface
Rotary drum
165 42, 62215, 62228, 318334, B60H 304
Patent
active
042190711
ABSTRACT:
An air-conditioning system in which a static inverter is driven at a predetermined constant frequency during a normal service mode of vehicle operation to effect operation of the vehicle cooling and/or heating unit such as to maintain the interior temperature of the vehicle within a chosen comfort zone. During initial start-up, when the interior temperature reaches extreme proportions due to the vehicle sitting in the sun or cold, an abnormal service mode of operation is called for in which the static converter is driven at an increased frequency and voltage for a predetermined limited time to rapidly bring the interior temperature within the comfort zone. The so-called abnormal service mode of operation may be indicated manually by the train service personnel under extreme temperature conditions after the start-up period of abnormal service mode has expired. Also provided is a passenger load sensing arrangement to increase the ventilation capacity of the cooling unit fans when overcrowding exists.
REFERENCES:
patent: 2203814 (1940-06-01), Clements
patent: 2256350 (1941-09-01), Nystrom
patent: 2355040 (1944-08-01), Alexander et al.
patent: 3237545 (1966-03-01), Gillick et al.
patent: 3803472 (1974-04-01), Konrad
patent: 3870945 (1975-03-01), Pedersen et al.
patent: 4085594 (1978-04-01), Mayer
patent: 4107941 (1978-08-01), Hamilton
Careglio Giuseppe
Pecorini Marcello
Restori Ettore
Davis Albert W.
Falce G. J.
Focarino Margaret A.
McIntire, Jr. R. W.
WABCO Westinghouse S.p.A.
LandOfFree
Air-conditioning system for railroad vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air-conditioning system for railroad vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-conditioning system for railroad vehicles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1302114