| 摘要 |
mechanical engineering, preferably, motor building. SUBSTANCE: hydraulic tensioner has hollow cylindrical body, cover with check valve, force spring and plunger shaped as a cup which forms precision pair along with body. Plunger is provided with a number of circular grooves of asymmetrical profile, and radial holes with locks arranged in them are located on body. Locks have spherical surface which contacts grooves provided on plunger. Flexible ring presses locks to grooves on plunger. Extreme auxiliary groove on side of open end face of plunger is of rectangular cross-section. EFFECT: improved design, simplified servicing. 5 cl, 3 dwg
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