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- Newsgroups: rec.autos.tech
- Path: sparky!uunet!cs.utexas.edu!asuvax!ennews!gtephx!rakoczynskij
- From: rakoczynskij@gtephx.UUCP (Jurek Rakoczynski)
- Subject: Re: emissions: electrical -> Nx or electrical ->Hydrocarbs. ?
- Message-ID: <1992Sep9.182944.18224@gtephx.UUCP>
- Organization: AG Communication Systems, Phoenix, Arizona
- References: <9209081940.AA01985@rwasic17.aud.alcatel.com>
- Date: Wed, 9 Sep 1992 18:29:44 GMT
- Lines: 28
-
-
- In article <9209081940.AA01985@rwasic17.aud.alcatel.com>, wpcallah@rwasic17.aud.alcatel.com (William Paul Callahan) writes:
- > I remember reading here a rule of thumb, that Nx was related to electrical
- > function, and Hydrocarbs related to mixture/carb. Or vice-versa? This is
- > the question.
- [stuff about access to archive server deleted]
-
- First the nitpicking: :-)
- Oxides of Nitrogen (typically refered to as NOx) consists of nitric
- oxide (NO) and nitrogen dioxide (NO2).
-
- There is nothing electrical related unless you're refering to computer
- control feedback loop, which I don't think you where talking about.
- Generally Carbon monoxide (CO) and Hydrocarbons (HC) decrease as you
- lean out the fuel mixture. Carbon Dioxide (CO2) and NOx peak around
- 16:1 and lean out on both side of the air fuel ratio.
-
- Electrical controls try to balance out the air fuel ratio for optimum
- performance based on the type of catalytic convertor in the system.
-
- Source: Standard_Handbook_for_Mechanical_Engineers
- Hope this helps!
-
- --
- Jurek Rakoczynski, AG Communication Systems, POB 52179, Phoenix, AZ. 85072
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