| 摘要 |
<p>1504762 Multiple cell carburetter K MIYAZAWA 14 May 1975 [24 May 1974 31 May 1974 18 July 1974(2) 27 Aug 1974 17 March 1975] 20420/75 Heading FIB An I.C. engine carburetter Fig. 1 comprises a plurality of cell carburetters 5, whose throttle members 13 are automatically controlled in response to the internal pressure of the carburetter to maintain that pressure substantially constant, the throttles being operated by solenoid control to discrete positions. The cell carburetters have a fuel nozzle 12 supplied through a valve 11 and may include an enriching fuel nozzle, and ultrasonic generator and mixing baffles. The throttle may be arranged to be either open or closed or operable to a half-open position. Fig. 12 shows a wick type carburetter having a central fuel resevoir connected to an annular fuel channel 102a. A series of wicks 125 extend into the air passage of the series of cell carburetters 105. The wicks may be of porous rod or a bundle of capilleries. The cell carburetters are of the rotor valve type and may have secondary air passages 105b operable when the solenoid 108 rotates the cell carburetter body through 90 degrees so closing the main air passage 105a. The solenoid operates through a one way electromagnetic clutch 107. The carburetter may have baffles 126 or an ultrasonic generator to aid mixing. The cell carburetters may be arranged to promote swirl Figs. 14 and 15 (not shown). The cell carburetter control is achieved by an electronic controller which operates selected cell carburetters or groups thereof to provide the required mixture flow for the engine conditions in response to sensors responding to engine load, acceleration, braking and air pressure, temperature etc as well as maintaining the carburetter at constant pressure. To achieve this different cell carburetters may have different flow-rates and air/fuel ratios.</p> |
