초록 ▼

A surface array of electrically actuated pulsed microscopic fuel jets arranged on the interior surface of a mixing chamber injects fuel into air to form a combustible air-fuel mixture. The jets are solid state units with no moving parts, which can be actuated individually or in groups, and the volum

A surface array of electrically actuated pulsed microscopic fuel jets arranged on the interior surface of a mixing chamber injects fuel into air to form a combustible air-fuel mixture. The jets are solid state units with no moving parts, which can be actuated individually or in groups, and the volume of fuel injected per each jet\s firing pulse can be varied by changing the characteristics of the electrical actuating pulse. Having no moving parts and being electrically activated, the jets are intrinsically suited to direct computer control. By providing a large number of such jets and a means of their direct electronic control via negative feedback, fine control of the operating parameters of the combustion engine and a high degree of redundancy to compensate for the failure of individual jets is made possible. The lack of moving parts and the absence of a high pressure fuel supply system provide significant advantages in performance, cost, reliability, and safety over the prior art in fuel injection.

대표청구항 ▼

Fuel injection apparatus for liquid fueled combustion engines, comprising: a mixing chamber structure having a passage through which a flow of air may be delivered to a liquid fueled combustion engine; a plurality of electrically actuated solid-state fuel-spraying jets, each comprising: (1) a fuel c

Fuel injection apparatus for liquid fueled combustion engines, comprising: a mixing chamber structure having a passage through which a flow of air may be delivered to a liquid fueled combustion engine; a plurality of electrically actuated solid-state fuel-spraying jets, each comprising: (1) a fuel chamber; (2) a fuel inlet passage communicating with said fuel chamber for flowing fuel from a source thereof into said fuel chamber; (3) an exit orifice communicating with said fuel chamber; (4) an electrically actuated expelling means for causing fuel introduced into said fuel chamber through said fuel inlet passage to be forcibly expelled out of said exit orifice; and (5) means for preventing a reverse flow of fuel from said fuel chamber outwardly through said fuel inlet passage; means for supplying fuel to said fuel inlet passages of said fuel-spraying jets; means for providing repetitive electrical actuating pulses of predetermined magnitudes, repetition rates, and durations to said electrically actuated expelling means of said fuel-spraying jets so as to produce a repetitive operating cycle in each of said fuel-spraying jet comprising: (1) a time interval sufficient for fuel from said fuel supplying means to flow through said fuel inlet passage and fill said fuel chamber of said fuel-spraying jet; followed by (2) expulsion of fuel through said exit orifice upon application of said electrical actuating pulse to said electrically actuated expelling means and; means for supporting said fuel-spraying jets on said mixing chamber structure so that fuel sprayed from said exit orifices of said fuel-spraying jets into said mixing chamber structure passage can operatively mix with a flow of air being delivered therethrough to a liquid fueled combustion engine.