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Tension spring for piezo-multilayer actuator e.g., of high pressure fuel injection valve, uses wave spring having amplitude sized to within wall thickness, or less
Tension spring for piezo-multilayer actuator e.g., of high pressure fuel injection valve, uses wave spring having amplitude sized to within wall thickness, or less
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机译:用于例如高压燃料喷射阀的压电多层致动器的拉伸弹簧使用振幅大小在壁厚或更小范围内的波形弹簧
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摘要
A tensioning spring for tensioning piezoelectric actuator between two closure elements (2,3) and has at least two wave-springs (6) each fixed to the closure elements (2,3) and joining them together. The wave springs (6) have a wave amplitude lying in the order of their wall thickness or less, and the length of the wave-train amounts to a multiple of the wave amplitude.
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