Internal-combustion engines – Cooling – With vapor generation and/or condensing
Patent
1987-03-18
1988-11-08
Argenbright, Tony M.
Internal-combustion engines
Cooling
With vapor generation and/or condensing
123425, F01P 322, F02P 504
Patent
active
047827955
ABSTRACT:
An engine anti-knock control arrangement controls both the ignition timing system and an evaporative cooling system so that when the engine is operating in a predetermined engine speed and load zone and engine knock is detected, the cooling system is operated to reset the temperature to which the coolant (and therefore the engine) should be controlled, to a predetermined minimum value and the ignition timing incrementally retarded until the knocking phenomenon terminates. While the temperature is dropping and knocking is absent, the ignition timing is incrementally advanced until the knock threshold is reached and thus brings the timing as close as practical to the MBT value for the instant set of operating conditions. Cyclic repetition of the ignition timing advancement and retardation holds the timing at MBT while the engine is operating in the predetermined zone.
REFERENCES:
patent: 4367699 (1983-01-01), Evans
patent: 4549514 (1985-10-01), Abe et al.
patent: 4590565 (1986-05-01), Takasu et al.
patent: 4601264 (1986-07-01), Hirano
patent: 4605164 (1986-08-01), Hayas Hi et al.
patent: 4616602 (1986-10-01), Hirano et al.
patent: 4630572 (1986-12-01), Evans
Hirano Yoshinori
Kubozuka Takao
Argenbright Tony M.
Carlberg Eric R.
Nissan Motor Co,. Ltd.
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