Gerotors are hydraulic pumps with a unique circular rotor design that transfers liquids smoothly and consistently. Invented in 1921 by Myron Hill, gerotors have an inner and outer rotor that lock and unlock to create suction and exhaust ports, drawing in liquid at a constant rate. Gerotors have fewer moving parts than traditional pumps and are used in various industries, including automotive and manufacturing.
A gerotor is a tool used to pump liquids. The unique hydraulic design of this small circular rotor provides a smooth and consistent method of transferring oil, water and other liquids within an enclosed pipe system. This pumping method has many benefits and is used by a variety of industries.
The term “gerotor” is short for “generated rotor”, a tool invented in 1921. The European engineer Myron Hill dedicated many years of his life to the development of this pump. After creating the gerotor, he also developed a great deal of geometric theory based on the use of rotors.
A gerotor has a distinctive design which is key to its success. This circular rotor actually has a second rotor enclosed within it. The inner rotor has a number of oblong teeth and is located off-center, and the outer rotor has one more tooth than the inner rotor. As both rotors rotate, the teeth lock and unlock due to the off-center position, creating intermittent open pockets between the rotors during operation.
A gerotor works like a pumping mechanism as liquid passes through the teeth, creating a suction port. The liquid pushes the rotors and spins the gears, creating intake and exhaust ports whenever the teeth mesh. The rotation and mesh of the teeth also creates a tight seal between these ports and draws in the liquid at a constant rate.
This type of pumping system has several advantages over traditional motor-driven pumps. Its most obvious advantage is that the fewer moving parts and valves prevent it from breaking down as frequently as other pump systems. The consistency of a self-propelled vacuum cleaner is also beneficial because it moves the liquid at a speed, based on the push of the liquid. This differs from motor driven pumps in that it does not require any adjustment or monitoring to function properly.
Gerotor pumps are used in many industries and in many ways. The automotive industry has embraced this technology by using geroto in everything from fuel injection systems to power steering. Manufacturing industries have also found ways to use these rotors, especially when oils have to be sent via pipes over a great distance to lubricate machinery. Factories that produce oils, such as cooking oils, also use the vacuum system to transport goods.
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