Compound drive for the sleeve valve of an engine
AssigneeGreen Energy Gas Engines Pty. Ltd.
InventorsJoseph Angelo Beninca, Mark Frederick Jones
Life of this patent
Estimating the term…
Abstract
A drive train for the sleeve of a sleeve valve engine has a pair of drives imparting compound motion to the sleeve which gives improved port opening and closing. One drive uses a engine driven first gear to give eccentric motion to the sleeve by a cam and follower. The other drive uses an engine driven second gear to give a small simultaneous rotation to the sleeve by an eccentric pin during a split sleeve. One drive allows axial response without preventing rotational response from the other drive. The sleeve path allows tall narrow ports which allow the piston rings to be nearer the piston crown and this reduces emissions.
Claims7
A sleeve valve engine, wherein the sleeve valve which opens and closes the ports is driven by a first sleeve drive which imparts reciprocatory motion to the sleeve while a second sleeve drive imparts partial rotation to the sleeve;
- wherein in the first drive a block adjacent the sleeve describes an eccentric path in order to reciprocate the sleeve and the block engages a follower projecting from the sleeve which allows the sleeve to describe an arcuate path while reciprocating.
Dependencies are inferred from the claim text.