| 摘要 |
An internal combustion engine and method is disclosed wherein a separate compression cylinder and an adiabatic power cylinder are used and a regenerator or pair of regenerators is mounted between them to provide heat for hot-air ignition. The single regenerator embodiment operates as a two-stroke cycle engine and the embodiment with an alternating pair of regenerators operates as a four-stroke cycle engine. Improvements include a power transfer valve with an anti-backflow design using a recessed valve seat, a rapid leakdown lifter, and ceramic coatings to minimize blow-by, seal the power cylinder during the combustion process, and protect the valve. Additionally, the power cylinder piston, power cylinder head and power transfer valve are all either made from ceramics or have ceramic coatings to insulate the gases and prevent loss of heat from the gases to the cooling system. The lower pressures allows the soft spray of fuel without forming soot.
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