Internal-combustion engines – Miscellaneous – Fuels – lubricants and additives
Patent
1994-09-29
1996-07-30
Okonsky, David A.
Internal-combustion engines
Miscellaneous
Fuels, lubricants and additives
123 25R, 123525, F02B 4300
Patent
active
055401902
ABSTRACT:
An automotive vehicle is described having on-board storage of free natural gas and natural gas combined with water to form a hydrate. The natural gas is preferably a mixture of methane and about 1% propane. It is provided with hollow metal plates. Cooling fluid can be circulated through the plates to form the hydrate and heating fluid can be circulated through the plates to decompose the hydrate. The pressure within the storage container is preferably between 450 and 850 psig. The free natural gas within the container can be used to start and warm the engine. The vehicle air conditioning system is used to cool the circulated fluid and the vehicle radiator and/or exhaust is used to heat the circulating fluid. The container is insulated with multiple layers of heat reflective material, e.g., aluminum foil, separated by glass fiber felt. Preferably, the layers are sealed and the space between the layers is maintained under a vacuum. The natural gas is conveyed by the pressure within the tank through a conventional pressure regulator to the vehicle engine. A molecular sieve column is provided to remove moisture from the natural gas as it is conveyed to the engine.
REFERENCES:
patent: 3732693 (1973-05-01), Chu
patent: 4210553 (1980-06-01), Osborg
patent: 4296723 (1981-10-01), Aldrich
patent: 5081977 (1992-01-01), Swenson
patent: 5150690 (1992-09-01), Carter et al.
patent: 5372619 (1994-12-01), Greinke et al.
Rogers Rudy E.
Yevi Gilbert Y.
Mississippi State University (MSU)
Okonsky David A.
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