Shaped charge engine

F - Mech Eng,Light,Heat,Weapons – 02 – K

Patent

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Details

F02K 7/00 (2006.01) F02K 7/02 (2006.01)

Patent

CA 2401759

A shaped charge engine includes an annular blast-forming chamber (3) formed by joining inner (1) and outer (2) housings. A central through hole in the inner housing allows exhaust gases to exit. The outer housing comprises a generally round disk with an inner conical concave depression and through holes for the insertion of fuel and ignition. The blast chamber is preferably taper-conical in shape, wider at the base, and gradually decreasing in cross-sectional area as it rises to the apex. This construction forms a circular pinch point or throat toward the apex that produces a primary compression zone. A secondary compression zone is created at the apex of the outer housing, just beyond the throat, producing hypersonic gases as generally opposing exhaust streams collide and are forced to exit the through hole in the inner housing. The shaped charge engine may be used in a variety of applications, including as a pulsed direct propulsion device, as a turbine driver, or in a wide array of tools and appliances.

L'invention concerne un moteur à charge (3) formé comprenant une chambre de formation de l'explosion constituée par assemblage d'un carter intérieur (1) et d'un carter extérieur (2). Un trou traversant au centre du carter intérieur permet la sortie des gaz d'échappement. Le carter extérieur comprend un disque généralement rond doté d'une dépression concave conique et de trous traversants destinés à l'introduction du carburant et à l'allumage. La chambre à explosion est de préférence de forme tronconique, plus large à la base, sa section transversale diminuant progressivement vers l'apex. Cette construction constitue un rétrécissement ou une gorge vers l'apex, qui produit une zone de compression principale. Une zone de compression secondaire est créée au niveau de l'apex du carter extérieur, immédiatement au-delà de la gorge, ce qui produit des gaz hypersoniques lorsque des flux d'échappement généralement opposés entrent en collision et sont forcés à sortir par le trou traversant du carter intérieur. Le moteur à charge de l'invention peut s'utiliser dans de nombreuses applications, y compris comme dispositif à propulsion directe pulsé, ou entraînement de turbine, dans une large gamme d'outils et d'appareils.

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