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From: hrs@houxb.UUCP (H.SILBIGER)
Newsgroups: net.auto
Subject: Re: Another question on blowers
Message-ID: <339@houxb.UUCP>
Date: Thu, 9-Aug-84 16:17:47 EDT
Article-I.D.: houxb.339
Posted: Thu Aug  9 16:17:47 1984
Date-Received: Fri, 10-Aug-84 02:40:01 EDT
References: <168@wjvax.UUCP> ihuxk.709
Lines: 15



I notice that the terms "blower" and "supercharger" are being
used interchangeably. These used to have different meanings,
to wit: a supercharger used a centrifugal turbine, and
a blower used a two-lobe pump.
All current passenger car superchargers are of the centrifugal type.
The turbo refers to the driving mechanisn, which is a exhaust
air driven turbine.
The blower was usually driven mechanically from the engine, and
was usually a Roots blower. At present the familiar 2 cycle
GM diesels used in buses and large trucks still use a Roots
type blower.

Herman Silbiger