US 4,122,803 AGranted

Combined internal combustion and steam engine

OwnerHugo S. Millerinventor

Life of this patent

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Abstract

An internal combustion engine in which a compact ring type boiler pack is installed around each cylinder under the cylinder head. Water is pumped through each boiler at a rate proportional to the cylinder temperature, to maintain a proper cooling and steam injection balance, the generated steam being injected peripherally into the cylinder in pulses, timed by a valve which is controlled by movement of the inlet valve actuating mechanism of the particular cylinder. The boiler has multiple stages to ensure complete conversion of the water to steam, the peripheral steam injection providing internal cooling of the cylinder walls without interfering with normal combustion. The steam system is adaptable to existing internal combustion engines and results in reduced fuel consumption, very low pollutant emissions in the exhaust and a very efficient thermal cycle.

Claims19

Dependent claims

In combination with an internal combustion engine having at least one cylinder, a head secured on said cylinder, said head having a combustion chamber with ignition means and timed fuel inlet control means therein, the inprovement comprising:

a boiler pack surrounding said cylinder between the cylinder and the head and being in thermally conducting engagement therewith;
said boiler pack comprising a hollow ring member having at least one water conducting chamber therein, with a water inlet having means for connection to a source of pressurized water;
said ring member having a substantially circumferential steam injection slot opening into said cylinder;
a control valve connected between said water inlet and said source of pressurized water;
and timing means actuated by said timed fuel inlet control means to open said control valve and release water into said injection slot when the cylinder is in the compression phase of the engine cycle.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/842,065Filed 14 Oct 1977
Granted: 31 Oct 1978
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

F02B 47/02
Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines:…
F02G 5/00
Profiting from waste heat of combustion engines, not otherwise provided for
F02M 25/0227
Adding fuel and water emulsion, water or steam: control aspects; Arrangement of sensors; Diagnostics; Actuators
F02M 25/038
Producing and adding steam: into the cylinder or the pre-combustion chamber