Combustion engine with cylinder and back to back piston axes arranged parallel and around a common drive axis, with each of pistons in pair having phase shift

摘要

A combustion engine (10) has a number of engine cylinders (21-1 - 21-5) arranged in an annular series around a common middle drive shaft (11) with the cylinder axes running parallel to the drive shaft. Each cylinder includes a pair of pistons (44, 45) movable towards and away from each other, which work in a common, intermediate working chamber. Each piston (44, 45) forms - via a piston rod (48, 49) with associated support roll - support and control via a "sine" - plane ("sine" - curve (8a, 8b)) in a cam guide device. The two pistons (44, 45) in each cylinder (21-1 - 21-5) have mutually differing piston phases, which are controlled by mutually differing cam guide devices. The cam guide devices are designed with equivalent mutually differing "sine" - planes ("sine" - curves (8a, 8b)).