Robert D Raymond

US Patent:

45012539, Feb 26, 1985

Filed:

Dec 13, 1982

Appl. No.:

6/449483

Inventors:

Joseph Gerstmann - Framingham MA
William M. Hauck - Glenshaw PA
Robert Raymond - Watertown MA
Paul F. Swenson - Shaker Heights OH

Assignee:

Consolidated Natural Gas Service Company, Inc. - Cleveland OH

International Classification:

F02B 4300

US Classification:

123527

Abstract:

A gaseous fuel system for a vehicle including an on-board compressor for recharging an associated pressure storage tank. The compressor and tank are mounted on the vehicle as a structural unit whereby the tank shields the compressor and high pressure gas flow circuits therebetween and provides a heat exchanger surface for the compressor. A regulator in series with a supply line of low pressure gas prevents gas flow when the compressor does not operate to maintain a vacuum in an intervening dispensing line. An O. sub. 2 sensor disconnects the compressor motor when the percentage of O. sub. 2 exceeds a predetermined safe limit. A bypass circuit allows the tank to be filled from a high pressure supply without operation of the compressor.

US Patent:

56785178, Oct 21, 1997

Filed:

Aug 9, 1996

Appl. No.:

8/696035

Inventors:

Tze-Ning Chen - Sudbury MA
Robert J. Raymond - Watertown MA

Assignee:

Thermo Power Corporation - Waltham MA

International Classification:

F02B 3100

US Classification:

123263

Abstract:

An internal combustion reciprocating engine includes a cylinder defining a main combustion chamber, a piston reciprocally movable in the cylinder, and a cylinder head providing an end wall for the main combustion chamber. A body is mounted in the cylinder head and is provided with an end wall substantially coincident with the main combustion chamber end wall, the body defining a pre-chamber and a passage interconnecting the pre-chamber and the cylinder. The body is in contact with the cylinder head only proximate the end wall of the body, the remainder of the body being insulated from the cylinder head, to store heat for heating air and vaporizing fuel introduced into the pre-chamber. A fuel inlet is in communication with the pre-chamber, and a spark source is mounted in the body and exposed to the pre-chamber. The invention further contemplates a method for burning a mixture of fuel and air in an internal combustion engine having a cylinder defining a main combustion chamber, and a piston reciprocally movable in the cylinder, the method comprising the steps of igniting a mixture of fuel and air in a pre-chamber, and directing a high velocity jet of air and remaining unburned fuel in fine droplet form from the pre-chamber and into the main combustion chamber wherein the high-velocity jet causes vaporization, ignition and combustion of the remaining unburned fuel in the main combustion chamber.