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(11)    Patent No :    AP 2589    (73) Applicant(s)       
(21)    Application No :    AP/P/2008/004709    FIGL Gerhard, Hubertusgasse 8, A-3430 Tulln An Der       
(22)    Filing Date :    12.06.2007    Austria       
(24)    Date of Grant &    04.02.2013           
(45)    Publication :

(30)    Priority Data            (72) Inventors   
    (33) Country    (31) Number    (32) Date    FIGL Gerhard, Austria   
    AT    A 1086/2006    28.06.2006    (74) Representative   
(84)    Designated State           
    GH   KE   T Z    UG        GALLOWAY & COMPANY   
(51)    International    Classification    F02F 1/18 (2006.01)    F02M 25/10 (2006.01)   
            F02M 21/02 (2006.01)    F02M 27/02 (2006.01)   
(54)    Title

Internal combustion engine

(57)    Abstract

Internal combustion engine having at least one piston cylinder (1), having a

housing (3) which encloses twin gas injectors (2) and has two inlet openings
(4) for the separate supply of hydrogen gas and oxygen gas into the

combustion chamber (5) of the piston cylinder, having two

pressure-controlled and time-controlled, electrical inlet valves (6) and associated nozzle needles (7) in the housing, wherein the combustion chamber has an outlet opening (15) for ejecting the combustion product and a thermolysis catalyst (20) forms the combustion-chamber covering, which thermolysis catalyst (20) has two hollow cylinders (25, 26) which are spaced apart from o ne another, are arranged concentrically and enclose an intermediate space (27), wherein those walls of the hollow cylinders which delimit the intermediate space are provided with a metal coating (28) for dissipating the combustion heat which loads the inner hollow cylinder, and wherein the outer hollow cylinder is provided with an inlet opening (29) for the supply of water, an outlet opening (30) for the discharge of oxyhydrogen gas and a temperature sensor (31) for water-supply control

(56)    Documents Cited :    CN-1229878 A    JP -05086966 A    DE-8504780 U1


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