[Gasification] diesel and gasification

[Derek Schulze]

If you want to burn gas from your gasification setup in a diesel engine, 
then your best bet would be a dual fuel natural gas and diesel engine.  I 
have seen these in large generator applications.  Basically, the diesel 
injector is modified to inject an extremely minute amount of diesel fuel to 
be mixed with gas having intered via the intake valve mixed with air. 
Basically, the diesel fuel provides the "spark" as natural gas will not 
ignite from the pressure provided by a diesel engine.  Such an engine will 
consume exceedingly small quanitities of diesel fuel and otherwise run quite 
happily on natural gas.

As for solenoid valves,... you would be better to control the injection 
timing (modern gas engines use solenoid actuated nozzles along a common 
pressurized rail).  You would need very large solenoids for actuating the 
valves with sufficient force to eliminate valve float at high RPMs (when 
valves can not complete their travel cycle within a compression cycle).

-Derek Schulze
TJ Greenhouses Inc.

----- Original Message ----- 
From: "Toby Seiler" <seilertechco at yahoo.com>
To: <dlevine at speakeasy.net>
Cc: <gasification at listserv.repp.org>
Sent: Thursday, November 22, 2007 1:22 AM
Subject: [Gasification] diesel and gasification


> David and list members,
>
>  I've asked this question before and got no response on the gasification 
> list.  Have you ever seen a diesel engine with three valves per cylinder? 
> I'm thinking one exhaust, one air intake and one wood gas.  Perhaps a CNG 
> engine with that setup??  I know several engines now have four valves but 
> still with 2 flows, intake and exhaust.
>
>  Also have you ever seen electric solenoid operated valving on any engine? 
> Modern electronics could go a long way with a valve system that could be 
> controlled that way using a PC.
>
>  Regards,   Toby Seiler
>
>
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