Fuel for internal-combustion engines

摘要: A fuel injection nozzle for internal combustion engines has a holder (11) with projecting fixed needle (15) the end section (17) bearing valve cone (18) of which an annular diaphragm (31) acts in manner valve. The outer edge (41) is clamped against by union nut (32), whereby (49) surrounding aperture (39) spring-loaded (18). In order to keep stresses during bending-generated movement low over their entire range, bulge (40) direction movement. preferably consists region (42) steep inclination ( alpha ) adjacent and (43) extending shallow beta ). may also be or dome shaped. To limit travel there abutment disc (33) together (32). shape jet influenced through (51) (33).