FIELD: mechanical engineering; internal combustion engines; timing gears. SUBSTANCE: hydraulic device has housing with base, diaphragm, hydraulic cylinder, spacer spring, plunger with oil collecting chamber, channel and check valve. Base of housing is mated with plunger through coaxial bushing installed with radial clearance in oil collecting chamber and engaging with plunger through spherical joint. EFFECT: enhanced serviceability of hydraulic timing gear. 2 dwg
