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A four-stroke, air-cooled unit, it had seven cylinders and a variable compression ratio, altered by changing the wobble-plate angle and hence the length of piston stroke. [3] It was called a "rotary engine", because the entire engine rotated apart from the end casings. Ignition was supplied by a Bosch magneto directly driven from the cam gears.
Hulsebos-Hesselman axial oil engines were five cylinder, four stroke, wobble plate engines that originated in and were used throughout the Netherlands during the late 1930s. [1] Numerous patents can be found concerning this engine, [ 2 ] all of which appear to attribute the engine's "wabbler" operating principles to the inventor Wichert Hulsebos.
The fixed plate is shown in gold and six shafts each take a reciprocating motion from points on the gold plate. The shafts might be connected to pistons in cylinders. Note the power may be coming from the shaft to drive the pistons as in a pump, or from the pistons to drive the shaft rotation as in an engine
Automotive air conditioning compressors for cabin cooling are nowadays mostly based around the axial piston pump design (others are based on the scroll compressor or rotary vane pump ones instead) in order to contain their weight and space requirement in the vehicle's engine bay and reduce vibrations. They're available in fixed displacement and ...
A similar engine to the swashplate engine is the wobble plate engine, also known as nutator or Z-crank drive. This uses a bearing that purely nutates, rather than also rotating as for the swashplate. The wobble plate is separated from the output shaft by a rotary bearing. [2] Wobble plate engines are thus not cam engines.
Pages in category "Piston engine configurations" ... Revolving cylinder engine; Rotary engine; S. ... W12 engine; W16 engine; W18 engine; Wobble-plate engine; X.
The Clerget rotary engines were air-cooled with either seven, nine or eleven cylinders. They were fitted with a double thrust ball race, which enabled them to be used either as a pusher or as a tractor engine. The engines worked on a four-stroke cycle. The chief points of difference from other rotary engines were: The pistons were of an ...
The piston stroke of 5.5 in (14.0 cm) was unchanged, but the cylinder bore was expanded to 5.0 in (12.7 cm) from the R-790's bore of 4.5 in (11.4 cm). While the R-790 was naturally aspirated , the R-975, like the other J-6 engines, had a gear-driven supercharger to boost its power output.