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A solenoid valve is an electromechanically operated valve. Solenoid valves differ in the characteristics of the electric current they use, the strength of the magnetic field they generate, the mechanism they use to regulate the fluid , and the type and characteristics of fluid they control.
A variable force solenoid (VFS) is an electro-hydraulic device that controls pressure proportionally or inversely proportionally to a signal (voltage or current) obtained from the on-board controller of a powertrain. A low flow VFS is used as a signal level devices for transmission line pressure control or application of clutches.
The solenoid can be useful for positioning, stopping mid-stroke, or for low velocity actuation; especially in a closed loop control system. A uni-directional solenoid would actuate against an opposing force or a dual solenoid system would be self cycling. The proportional concept is more fully described in SAE publication 860759 (1986).
George H. Leland worked as a designer at General Electric before founding Leland Electric Company. He invented and patented a rotary solenoid during World War II, and after that first company declined to pursue the product, he founded his second company - Leland Development and Engineering Company - later called Ledex, Inc.
(The Center Square) – A Costco executive warned consumers that potential price hikes in stores could be a result of President-elect Donald Trump's proposed tariffs. "When it rains, it rains on ...
An active-duty Marine has been charged with murdering a contestant from a racy reality TV show whose body was found in a pond a week after she vanished 50 miles away while working as an escort.
The French mint told The Associated Press on Tuesday that it is replacing a number of medals from the 2024 Paris Games and Paralympics after athletes complained that they have already deteriorated ...
A finite solenoid is a solenoid with finite length. Continuous means that the solenoid is not formed by discrete coils but by a sheet of conductive material. We assume the current is uniformly distributed on the surface of the solenoid, with a surface current density K ; in cylindrical coordinates : K → = I l ϕ ^ . {\displaystyle {\vec {K ...