System for automatic control of the fuel mixture strength supplied in slow running conditions to a heat engine having an electronic fuel injection system
First Claim
1. An automatic control system for adjusting the strength of the fuel mixture supplied, in slow running conditions, to a heat engine (101) having an electronic fuel injection system and means (114) for the supply of supplementary air in adjustable quantities, comprising first means (12,13,14,16,18) for periodically varying said quantity of supplementary air supplied to the engine and for detecting the consequent variation in the slow running speed of said engine, and second means (22) for modifying the quantity of fuel supplied to the injectors (116) of said system to compensate for variations in said mixture strength, activated by said first means.
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Accused Products
Abstract
A system for automatic control of the fuel mixture strength supplied in slow-running conditions to a heat engine having a fuel injection system and means for supplying supplementary air in adjustable quantities, comprising first means for periodically varying the quantity of supplementary air supplied to the engine and for detecting the consequent variation in the slow running of the engine for the purpose of obtaining activation for second means for modification of the quantity of fuel supplied to the injectors of the system for compensating the variation in the strength of the mixture.
32 Citations
12 Claims
- 1. An automatic control system for adjusting the strength of the fuel mixture supplied, in slow running conditions, to a heat engine (101) having an electronic fuel injection system and means (114) for the supply of supplementary air in adjustable quantities, comprising first means (12,13,14,16,18) for periodically varying said quantity of supplementary air supplied to the engine and for detecting the consequent variation in the slow running speed of said engine, and second means (22) for modifying the quantity of fuel supplied to the injectors (116) of said system to compensate for variations in said mixture strength, activated by said first means.
Specification