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radial engine
(redirected from Radial piston)

   Also found in: Dictionary/thesaurus, Wikipedia 0.03 sec.

radial engine

Type of internal-combustion engine used mainly in small airplanes, in which the cylinders (ranging from five to as many as 28, depending on engine size) are mounted in a circle around the crankshaft, sometimes in banks of two or more. Once the dominant piston-engine type, radials are now in only limited production; most new requirements are met by remanufacturing existing stock.


radial engine [′rād·ē·əl ′en·jən]
(mechanical engineering)
An engine characterized by radially arranged cylinders at equiangular intervals around the crankshaft.


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[ILLUSTRATION OMITTED] The Webasto-supplied top comprises 470 components, including a 40-amp electric motor driving a radial piston pump at 160 bar that sits in an acoustic capsule behind the spare tire.
The machine has a compact single-frame design, pressurized day tanks, radial piston pumps with magnetic couplings for both isocyanate and polyol components, closed-loop controls with volumetric flowmeters and frequency drives, low- and high-pressure chemical filters, flow-rate display, and a compact hydraulic mixhead.
The hydraulic motor is a hydro-statically-balanced radial piston cam curve unit with a mechanical efficiency approaching that of a roller bearing, thus resulting in excellent torque efficiency.
 
 
 
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