The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 1985
Filed:
Nov. 14, 1983
Klaus Baumer, Bonn, DE;
Herbert Wiegand, Cologne, DE;
Abstract
The injection device has a nozzle body (10) wherein the liquid-controlled edle valves (17; 18) are opened by the diesel fuel supplied by an injection pump via the annular line (12) and the pressure channels (13; 14) when the opening pressure p.sub.o, which is set at the pressure springs (19; 20) by way of the pressure adjusting discs (21; 22), is reached. In this connection the two needle valves (17; 18) can be opened and closed at different times within certain limits so that at a relatively low opening pressure p.sub.o for the needle valve (17) relative to the needle valve (18) the diesel fuel issuing through the spray aperture (24) into the combustion chamber (25) serves during the entire injection period as ignition jet for the alcohol fuel issuing from one or more spray apertures (29). The alcohol fuel, which is supplied continuously by a gear pump, flows from the pressure channel (26) to the collecting chamber (27) from where, interrupted by the liquid-controlled needle valve (18), it is injected intermittently via the blind hole (28) and the spray aperture(s) (29) into the combustion chamber (25). Due to the intake of air in the narrowest cross section of the spray apertures (24; 29), diesel and alcohol fuel arrive at the combustion chamber (15) already as two-phase mixture.