I. Introduction
THE linear combustion engine (LCE) presented in this paper is a modification of the internal combustion engine, which can used as a electric power unit in the series configuration of the hybrid vehicle [1]. A functional schematic of the LCE is shown in Figure 1. The LCE is the connection of two opposed pistons with a piston-rod, which is a common part of combustion engines, and a linear motor-generator. Both pistons work in the same conditions as those in a conventional combustion engine. Schematic of the linear combustion engine.