Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site abnjh.UUCP
Path: utzoo!linus!philabs!cmcl2!floyd!whuxle!pyuxll!abnjh!filed01
From: filed01@abnjh.UUCP (H. Silbiger)
Newsgroups: net.railroad
Subject: Re: how do diesel engine transmissions work?
Message-ID: <337@abnjh.UUCP>
Date: Tue, 27-Dec-83 09:48:31 EST
Article-I.D.: abnjh.337
Posted: Tue Dec 27 09:48:31 1983
Date-Received: Thu, 29-Dec-83 01:00:22 EST
References: <417@ihuxq.UUCP>
Organization: ATTIS, NJ
Lines: 14


 Almost all US diesel railroad prime movers are diesel-electric.
Thus, the engine is direct-cuopled to a generator, usually DC.
The wheels are driven by electric traction motors.
The operator conrols the power the same way as though he were
controlling an all-electric, by means of a controller.
The diesel throttle is operated by demand sensing.
Multiple operation is thus easy, as it is all electric.
In Europe, diesel mechanical and diesl hydraulic transmissions
are also used. Some of these hydraulics were used on the
Southern Pacific about 20 years back, made by Kruass-Maffei.
The Budd RDC (Rail Diesel Car) uses a mechanical transmission.
Herman Silbiger
AT&T-IS Morristown