| 摘要 |
A fuel injection valve for internal combustion engines, having a valve body (1) in which a bore (3) is embodied that has a longitudinal axis (14), and on the end toward the combustion chamber of which bore a valve seat (17) is embodied. In the region of the valve seat (17), at least one injection opening (20) is disposed that connects the bore (3) with the combustion chamber of the engine. A valve member (5) is disposed longitudinally displaceably in the bore (3) and with a sealing face (15) cooperates with the valve seat (17) for controlling the at least one injection opening (20). Between the wall of the bore (3) and the valve member (5), a pressure chamber (10) is embodied that can be filled with fuel at high pressure. The valve body (1) is surrounded, in the region of the pressure chamber (10), by a sleeve (22) that has anisotropic strength properties, so that the valve body (1) exhibits less deformation from the pressure in the pressure chamber (FIG. 1).
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