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2. Hydraulic cylinder - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_cylinder

   A hydraulic cylinder is the actuator or "motor" side of this system. The "generator" side of the hydraulic system is the hydraulic pump which delivers a fixed or regulated flow of oil to the hydraulic cylinder, to move the piston. There are three types of pump widely used: hydraulic hand pump, hydraulic air pump, and hydraulic electric pump.

3. Bleed screw - Wikipedia

   en.wikipedia.org/wiki/Bleed_screw

   They can take the form of a bolt with a hole through the middle that is threaded into a hole on the engine's cylinder head. This hole goes into the water jacket of the cylinder head. In other designs, the bleed screw is placed in the uppermost hose which leads to the heater core, i.e. at the highest point of the cooling system.

4. Tappet - Wikipedia

   en.wikipedia.org/wiki/Tappet

   A hydraulic tappet, also known as a "hydraulic valve lifter" and "hydraulic lash adjuster", contains a small hydraulic piston that becomes filled with pressurised engine oil. [4] [11] The piston acts as a hydraulic spring that automatically adjusts the tappet clearance according to the oil pressure. Although the movements of the piston are ...

5. Actuator - Wikipedia

   en.wikipedia.org/wiki/Actuator

   A pneumatic actuator is similar to a hydraulic one but uses a gas (usually air) instead of a liquid. [8] [9] Compared to hydraulic actuators, pneumatic ones are less complicated because they do not need pipes for the return and recycling of the working fluid. On the other hand, they still need external infrastructure such as compressors ...

6. Hydrolock - Wikipedia

   en.wikipedia.org/wiki/Hydrolock

   Hydrolock (a shorthand notation for hydrostatic lock or hydraulic lock) is an abnormal condition of any device which is designed to compress a gas by mechanically restraining it caused by a liquid entering the device.

7. Power assembly - Wikipedia

   en.wikipedia.org/wiki/Power_assembly

   In some applications manually barring the engine over can be difficult or impossible. The preferred tool for engine rotation is an electrically powered, hydraulically operated "turning jack". The turning jack uses a hydraulic cylinder and ram assembly that automatically advances to engage a hole in the flywheel.