shock absorbers

Abstract

A shock absorber comprises a first valve provided in a first flow channel, a first decompression flow channel into which a fluid from the first chamber is introduced and configured to decompress the fluid at a pressure of a first strength, a second decompression flow channel provided parallel to the first flow channel and having a smaller cross-sectional area than the first decompression flow channel, a third decompression flow channel provided parallel to the second decompression flow channel and having a smaller cross-sectional area than the first decompression flow channel and a larger cross-sectional area than the second decompression flow channel, a pressure chamber provided downstream of the second decompression flow channel and configured to exert a pressure on the first valve in a valve closing direction through the fluid, and a volume change mechanism.which is provided in the pressure chamber, deforms in response to an internal pressure of the pressure chamber and is designed in such a way that it changes a volume of the pressure chamber through the internal pressure, and a second valve, which is provided parallel to the third decompression flow channel and is designed in such a way that it circulates the introduced fluid to the second chamber, which is located downstream.