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1. (WO2018142097) IMPROVEMENTS TO OPERATION OF ENGINES

Pub. No.:    WO/2018/142097    International Application No.:    PCT/GB2018/000016
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Wed Jan 31 00:59:59 CET 2018
IPC: F02B 75/32
F02D 19/10
Applicants: COMBUSTION ORDER LTD
Inventors: MARTIN, Peter
Title: IMPROVEMENTS TO OPERATION OF ENGINES
Abstract:
A method is provided for improving the efficiency of an internal combustion engine (1) having a piston (15) configured for reciprocating movement within a cylinder (16). The rate of movement of the piston (15) along the cylinder (16) with respect to a combustion chamber is at least reduced during at least a part of the first 90 degrees of each combustion stroke. The movement of the piston (15) is reduced for a continuous period starting after the top dead centre of the piston (15) within the cylinder (16) and finishing not later than 90 degrees after top dead centre. The reduction is applied to each cycle of the engine such that the path of the piston (15) during each cycle of the engine is cyclic but not completely sinusoidal for at least part of the first 90 degrees of the combustion stroke.