Method and apparatus for supplying fluid to an internal combustion engine
US4364370A · kind A · utility
Inventors
Key dates
| Filing date | Aug 27, 1980 |
| Grant date | Dec 21, 1982 |
| Priority date | — |
| Expiry date | Aug 27, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method of introducing a fluid, as water, alcohol, or a mixture of water and alcohol, into intake air of an internal combustion engine. An electric motor drives a pump that delivers fluid under pressure to a nozzle mounted on the cover of an air cleaner above the air inlet of the carburetor. The electric energy supplied to the electric motor is modulated in a manner to operate the motor so that the pump discharges fluid at a rate that maintains the fluid to air/fuel mixture ratio substantially constant over the operating rpm of the engine. An electric control circuit is operably associated with a diaphragm assembly connected to the intake manifold and a light emitting and reflective light sensing component operable to produce an electric signal response to movement of the diaphragm that is proportional to vacuum pressure in the intake manifold. The electric signal is used to vary the width of electric energy pulses originating from the ignition system of the engine to provide output electric energy to operate the electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.