Patent ID: 6116522
Filing Date: 2000-09-12
Classification: F02M,Y10S

Abstract:
Fuel injection device for diesel engines comprising:(a) a nozzle holder (1) having a face (16), a center bore (7) and a pressure spring (8),(b) a nozzle body (3) having a nozzle needle (5),(c) a pressure channel (2, 4) coupled to a fuel injection pump and extending from and through said nozzle holder (1) and nozzle body (3),(d) said nozzle holder (1) being supported relative to said nozzle body (3) so that said nozzle holder (1) is movable in the lengthwise direction into sealing engagement with said nozzle body (3) by means of an intermediate disk (13) having a top (15), and(e) a deformable metal hollow cylinder sealing body (18) extending between a counter-sealing surface and a conical seat (19) and adapted for deformation against seat (19) with increasing tightening of a nozzle adjusting nut (10) which connects the nozzle body (3) with the nozzle holder (1),(f) wherein said sealing body (18) engages said conical seat (19) in the nozzle holder (1) which widens toward the opening of the pressure channel (2) which faces the nozzle body (3), and(g) the face (16) of the nozzle holder (1) is formed in the shape of a truncated cone, whereby the face (16) forms a slight conical angle (.gamma.) with the top (15) of the intermediate disk (13), causing a concentric sealing edge (D) to be formed around a central interior space of the nozzle holder (1).