Boots – shoes – and leggings
Patent
1981-04-01
1983-12-27
Gruber, Felix D.
Boots, shoes, and leggings
123357, 123446, 123480, F02M 3900, F02D 502
Patent
active
044234856
ABSTRACT:
An electric control apparatus for a fuel injection pump comprises a fuel flow sensor for detecting the net quantity of fuel supplied to the fuel injection pump, operating condition sensors for detecting operating condition parameters of an engine, a servo device for driving a fuel injection quantity controlling element of the fuel injection pump which controls the fuel injection quantity of the fuel injection pump, and an electric control circuit for receiving detection signals from the fuel flow sensor and the operating condition sensors, computing the actual fuel injection quantity and the desired fuel injection quantity, and determining an error between the computed actual fuel injection quantity and desired fuel injection quantity to drive the fuel injection quantity controlling element of the fuel injection pump through the servo device in accordance with an error representing signal, thereby controlling the actual fuel injection quantity at the desired fuel injection quantity.
By ensuring high detection accuracy of the fuel flow sensor, it is possible to accomplish high precision control of the fuel injection quantity without utilizing the position of a moving part of the fuel injection quantity controlling element of the fuel injection pump.
REFERENCES:
patent: 3821896 (1974-07-01), Grob
patent: 3867918 (1975-02-01), Williams et al.
patent: 3873814 (1975-03-01), Mirdadian
patent: 3973537 (1976-08-01), Williams et al.
patent: 4294211 (1981-10-01), Stumpp et al.
patent: 4343274 (1982-08-01), Butscher
Hobo Nobuhito
Ito Osamu
Kawai Shizuo
Nishio Teruo
Sami Hiroshi
Gruber Felix D.
Nippondenso Co. Ltd.
Toyota Jidosha Kogyo Kabushiki Kaisha
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