| 摘要 |
<p>An acceleration sensitive shock absorber has a tubular housing (16) and a piston assembly (15) in the housing dividing the housing into an upper chamber (13) and a lower chamber (12). The piston (14) is connected to the wheel of a vehicle and the housing is connected to the chassis of the vehicle. Fluid can pass between the upper and lower chambers with a restricted flow rate during either extension or compression of the shock absorber. There is a port (48) for providing fluid flow from the lower chamber to the upper chamber during downward acceleration of the wheel. A movable inertial mass (46) in the piston assembly opens the port during downward acceleration of the wheel of the vehicle for increasing flow between the chambers. A pocket beneath the inertial mass applies sufficient pressure to the inertial mass to retain it in a port-open position during fluid flow after acceleration has decreased. An enlarged diameter relief portion (99) inside the inertial mass minimizes inconsistent performance in mass produced shock absorbers.</p> |
