Process and apparatus for reducing port fuel injector deposits

Details Process and apparatus for reducing port fuel injector deposits Process and apparatus for reducing port fuel injector deposits

1986-08-13

1988-11-08

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

123467, 123516, F02M 3900

Patent

active

047828080

ABSTRACT:
Plugging of fuel injectors for internal combustion engines is reduced by depressurizing the fuel pressure line which feeds the injectors, promptly after shutoff of ignition. Reduction of deposite assists in maintaining drivability and fuel economy.

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patent: 4020802 (1977-05-01), Hattori
patent: 4077376 (1978-03-01), Thoma
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patent: 4257375 (1981-09-01), Ulrich
patent: 4347825 (1982-09-01), Suzuki et al.
patent: 4383513 (1983-05-01), Gmilin
patent: 4530329 (1985-07-01), Maisch
patent: 4539961 (1985-09-01), Atkins et al.
"Hitec 4420" Ethyl Corp. Brochure PA-156 (2/86).
" . . . DuPont DMA-54" DuPont brochure, E83571 (3/86).
"Fuel Econ. Through Utiliz. Mobil Carburi Detergents", Mobil Corp. brochure 2070-AS.
Patent Abstracts of Japan, vol. 7, No. 8 (M-205)(1226), Apr. 5, 1983, & JPA, 588,265 (Toyota Jidosha Kogyo K.K., Jan. 18, 1983.)

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