Search results
Results from the WOW.Com Content Network
Electric rotary valve actuator controlling a butterfly valve. A rotary actuator is an actuator that produces a rotary motion or torque.. The simplest actuator is purely mechanical, where linear motion in one direction gives rise to rotation.
A rack and pinion has roughly the same purpose as a worm gear with a rack replacing the gear, in that both convert torque to linear force. However the rack and pinion generally provides higher linear speed — since a full turn of the pinion displaces the rack by an amount equal to the pinion's pitch circle whereas a full rotation of the worm screw only displaces the rack by one tooth width.
There are three pinion offsets for the Dana 70 rear axle. 1 ⁄ 2, 5 ⁄ 8 and 31 ⁄ 32 inch (13, 16 and 25 mm) offset. The first Dana 70 axles had a 1 ⁄ 2-inch (13 mm) pinion offset and were found in Dana 70HD's as well. The drawback with the 1 / 2-inch offset was that a 4.10:1
The pinion is supported both in front of and behind the pinion teeth, [7] an arrangement often referred to as "straddle mounting." Straddle mounting greatly reduces pinion deflection under high torque loads, conferring increased longevity and torque capacity. The pinion is also removable from the back as well, making for easier access.
A Bendix drive is a type of engagement mechanism used in starter motors of internal combustion engines.The device allows the pinion gear of the starter motor to engage or disengage the ring gear (which is attached to the flywheel or flexplate of the engine) automatically when the starter is powered or when the engine fires, respectively.
The general adoption of rotary valves in the place of poppet valves in combustion engines was prevented by the issue of sealing. Poppet valves have a seal around the tapered flange of the opening, and this seal improves with increased working pressure in the combustion chamber because the pressure forces the valve shut.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Starter ring gear attached to a flywheel. In cars with a manual transmission, the starter ring gear is fitted to the outer diameter of the flywheel.The ring gear is usually fixed to the flywheel through use of an interference fit, [2] which is achieved by heating the ring gear and so that thermal expansion allows it to be placed around the flywheel.