Digital computer for calculating the optimal richness of the air/fuel mixture for internal combustion engines
US4170040A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1978 |
| Grant date | Oct 2, 1979 |
| Priority date | — |
| Expiry date | Jan 10, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/1482
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A digital computer for calculating the optimal air/fuel mixture of a carburettor-type internal combustion engine by injecting a variable amount of air into the main air induction system, comprising an address computer disposed between the contract breaker and the memories of the computer; a first memory containing the data concerning the characteristics of the engine, said data being stored as a function of the rotational velocity of the engine; a second memory containing the data concerning the subservience velocity as a function of the engine rotational velocity; and an injection time computer adapted to sum up the data received by said first memory and the data received by an up-and-down-counter responsive both to a chemical analysis probe and to the second memory, said injection time computer being connected to a circuit for triggering said solenoid operated valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.