View Full Version : Blast injection
21st April 2011, 19:57
Did any of the more venerable members sail with blast injection fuel systems. I know the compressors were an **** pain but was the running more smooth and how did they sound compared to the jerk pump types
21st April 2011, 22:29
There is a small Blast Injection Sulzer at the Internal fire museum in Wales - well worth a visit if you are in the area
gives some idea of what it sounds like - the only one I have ever seen
Other videos on the site are worth a look
Incidentally they have the Sirion enmgines out of the Balmoral on site
22nd April 2011, 13:20
Thank you Duncan 112
15th June 2012, 21:58
I sailed with a ship with 2 WERKSPOOR 4-cycle S.A. engines, both 8 cylinders, 4600 BHP, double screw as Assistant engineer in 1953
Both engines were originally built for blast injection, but later made suitable for Fuel Pressure injection.
The problem was all the fuel injection pumps injected the fuel a fixed number of crank degrees before the TDC
As you know that gives too much pressure during manoeuvering, it is to say at slow speed.
The Technical Staff of the company had solved this problem as follows:
On top of every cylinder was a steel bottle mounted with a flange on the cylinder cover and on top of that bottle was a stop cock with a steel pipe connected to the combustion space of the cylinder.
It was my job before manoeuvering to open al the cocks (16) , so that the combustion space had more volume and less pressure
After manoeuvering I had to close the cocks, which were hot and also the silver paint on the bottles was smoking
For the situation on the top of the cylinders see the picture:
Perhaps someone of you has also such an experience
5th July 2012, 11:17
Take a look at our site: http://www.ksof.se/ We are restoring a 3 cylinder
Polar diesel with blast injection. First start after 50 years rest you can see
and hear on: http://www.ksof.se/index.php/activity/80-activity-category/94-foersta-starten
27th January 2013, 17:57
Take a look at our site: http://www.ksof.se/ Brgds
Quote from: Donkeyman on 22 March 2008 kl. 23:09
Senaste numret av "Skipsrevyen" (http://www.skipsrevyen.no/) har en synnerligen intressant 7 siders artikel om just Doxfordmotorer.
Lasse, (as a Scandinavian)
Can you help me - or perhaps someone else - on this article mentioned in this e-mail (7 siders article)
I got so far, from somebody the following information:
"But back in 2008 there were 3 articles in a the Norwegian "Skipsrevyen" with the headline: The Rise and Fall of the Doxford Oil Engine - From Heaven to Hell. The articles was written in Norwegian by a colleague of you; Chief engineer Rolf K. Kristensen"
But he did not had this article in his possesion.
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