Ricardo UK Limited

Neville Stuart Jackson

Andrew Farquhar Atkins

A split-cycle engine includes a compression cylinder having a first volume for a first working fluid and a second volume for a second working fluid, the first volume and second volume being separated by the compression piston, an expansion cylinder having a first volume for the first working fluid and a second volume for the second working fluid, the first volume and second volume being separated by the expansion piston, and a fluid coupling between the second volume of the compression cylinder and the second volume of the expansion cylinder, wherein the two second volumes and the fluid coupling provide a closed volume for the second working fluid, wherein the fluid coupling includes a regenerator arranged such that the two second volumes are thermally decoupled.

Split cycle engine

A split cycle reciprocating piston engine includes a compression cylinder () accommodating a compression piston () and an expansion cylinder () accommodating an expansion piston (). The compression cylinder () has an inlet port () for the admission of air and an outlet port () which communicates with a first path of a heat exchanger (). The expansion cylinder () has an inlet port (), which communicates with the first path of the heat exchanger (), and an outlet port (), which communicates with a second path of the heat exchanger () in heat exchange relationship with the first path. The method of operating the engine includes injecting a liquefied, non-oxidizing, non-combustible gas, such as nitrogen, into the compression cylinder ().

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Hove, United Kingdom

Neville Stuart Jackson