Split-cycle air hybrid engine

Details Split-cycle air hybrid engine Split-cycle air hybrid engine

2008-01-08

2009-10-20

Kamen, Noah (Department: 3741)

Internal-combustion engines

Two-cycle

Pump compression

C123S053500, C060S712000

Reexamination Certificate

active

07603970

ABSTRACT:
A split-cycle air hybrid engine operatively connects an air reservoir to a split cycle engine. A power piston is received within a power cylinder and operatively connected to a crankshaft such that the power piston reciprocates through an expansion stroke and an exhaust stroke during a single revolution of the crankshaft. A compression piston is received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke in a single rotation of the crankshaft. The compression cylinder is selectively controllable to place the compression piston in a compression mode or an idle mode. An air reservoir is operatively connected between the compression cylinder and the power cylinder and selectively operable to receive compressed air from the compression cylinder and to deliver compressed air to the power cylinder for use in transmitting power to the crankshaft during engine operation.

REFERENCES:
patent: 4215659 (1980-08-01), Lowther
patent: 4418657 (1983-12-01), Wishart
patent: 4696158 (1987-09-01), DeFrancisco
patent: 7007639 (2006-03-01), Luttgeharm
U.S. Appl. No. 05/947,998, filed Oct. 2, 1978, Frank E. Lowther.

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