Internal-combustion engines – Charge forming device – Auxiliary air or oxygen added to combustible mixture
Patent
1994-01-19
1995-08-01
Jordan, Charles T.
Internal-combustion engines
Charge forming device
Auxiliary air or oxygen added to combustible mixture
F02B 2300
Patent
active
H00014664
ABSTRACT:
The design and construction of past oxygen injection systems having an oxygen mixer to inject oxygen into an air intake pipe required the use of oxygen in a highly pressurized state. The use of high pressure oxygen required precise pressure control in order to maintain safety. Additionally, the high pressure tank used for storing the oxygen was not space efficient due to the large volume occupied by the oxygen in the gaseous state. The present invention overcomes these problems by utilizing oxygen in the liquid state. Liquid oxygen is stored within a more space efficient storage tank. A solenoid is signaled through an electronic control unit to open under specific operating conditions allowing liquid oxygen to flow from the storage tank. Upon leaving the storage tank, the liquid oxygen is converted to a gaseous state where it flows through an oxygen supply pipe so that the oxygen can be injected by an oxygen mixer into an air intake pipe for mixing with ambient air. The ability to increase the oxygen level during specific operating conditions produces more efficient combustion and reduction in black smoke.
REFERENCES:
patent: 3861367 (1975-01-01), Kelmar
patent: 4078535 (1978-03-01), Shafer
patent: 4960098 (1990-10-01), Akerib
Caterpillar Inc.
Charlton Diana L.
Jordan Charles T.
Wesson Theresa M.
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