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Humphrey's pump consists of a large U-shaped tube, filled with water. One end is sealed by a heavy cast iron, or steel, 'combustion head'. The combustion head contains the inlet and exhaust valves, the ignition source and withstands the pressure of the combustion chamber. Water enters the pump through sprung inlet valves below the combustion ...
Ralph Lewis of Boston, designed an overhead valve, overhead cam six-cylinder engine of 40/45-hp. George D. Rider financed manufacturing and the Rider-Lewis Motor Car Company was established. Rider-Lewis introduced the automobile at the Indianapolis Motor Show in March 1908 priced at $2,500 (equivalent to $84,778 in 2023).
Humphrey was born in Gospel Oak, London, to Louisa (née Frost, 1831–1911) and John Charles Humphrey (1833–1903).His mother had been a dressmaker before marriage, and his father was a clerk at the London Metropolitan Board of Works and later London County Council.
There is a common legend that in 1713 a cock boy named Humphrey Potter, [13] whose duty it was to open and shut the valves of an engine he attended, made the engine self-acting by causing the beam itself to open and close the valves by suitable cords and catches [14] (known as the "potter cord"); [15] however the plug tree device (the first ...
The Humphrey cycle is the thermodynamic cycle occurring detonation engines such as rotating detonation engines, the pulse detonation engines, and pulse compression detonation systems. It may be considered to be a modification of the Brayton cycle in which the constant-pressure heat addition process of the Brayton cycle is replaced by a constant ...
The Crosley CIBA (Cast Iron Block Assembly) was a more traditional and more reliable engine utilizing a cast-iron block. Nevertheless it had a unique design. Instead of a removable cylinder head, the combustion chambers, valve seats, cam supports, ports and cylinders are one casting, and the crankcase is another.
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