AT THE HEART OF THE ROAD TRANSPORT INDUSTRY.

Call our Sales Team on 0208 912 2120

Q A vehicle . fitted with a Gardner engine, has a speed

13th December 1974
Page 44
Page 44, 13th December 1974 — Q A vehicle . fitted with a Gardner engine, has a speed
Close
Noticed an error?
If you've noticed an error in this article please click here to report it so we can fix it.

Which of the following most accurately describes the problem?

range of say, 1000 rpm; to 2000 rpm at the engine crankshaft, .feeding into the gearbox.

With the standard David Brown gearbox (six-speed), could you tell me what the rpm would be, out of the gearbox. on the propshaft, for each of the six .forward speeds?

I require these speeds on the propshaft and not on the rear axle.

A It is not known what gearbox ratios you will specify but an easy formula to determine the propshaft speeds for yourself is propshaft speed equals engine speed divided by gear ratio.

Let us assume that you wish to know 'the propshaft speed while the engine is turning over at 1300rpm and that 3rd gear, having a 2.5 to I ratio, is selected. Then a propshaft speed of 1300 divided by 2.5 gives 520 rpm.

Tags

People: David Brown

comments powered by Disqus