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Gorman-Rupp was founded in 1933 by two entrepreneurs, J.C. Gorman and Herb Rupp. Their simplified design of a self-priming, centrifugal pumps would form the core of their initial product line. [3] The company was contracted by the United States military during the Second World War. Diversifying their product line to include a variety of ...
The dry-sump system uses two or more oil pumps and a separate oil reservoir, as opposed to a conventional wet-sump system, which uses only the main sump (U.S.: oil pan) below the engine and a single pump. A dry-sump engine requires a pressure relief valve to regulate negative pressure inside the engine, so internal seals are not inverted.
Curved iron davits began to be introduced later in the 19th century. [4] Development of the davit has also been in terms of material. Traditionally davits have been made in aluminium or steel but recent advances in composite material have led to the manufacture of davits in carbon fibre which has an excellent strength-to-weight ratio. This ...
Rupp sold their last models, the RX-80 and RST-100 in 1975. RMT – The RMT80 was Rupp's first larger minicycle offered in 1972. It used a 2-cycle 80cc Fuji engine with four speed manual transmission. It featured a 17-inch front wheel and 16-inch rear wheel. L – Rupp manufactured two L-series dirt bikes in 1973, the L80 and L100. Both bikes ...
The Ferguson-Brown used a Coventry Climax engine for the first 350 tractors. Browns developed their own engine which was fitted to subsequent production. Total production was 1350 + 1 built from parts in 1940 after production finished. [4] 1971 David Brown 990 tractor
If a hydraulic rotary pump with the displacement 10 cc/rev is connected to a hydraulic rotary motor with 100 cc/rev, the shaft torque required to drive the pump is one-tenth of the torque then available at the motor shaft, but the shaft speed (rev/min) for the motor is also only one-tenth of the pump shaft speed.
[c] These are supplementary pumps and do not replace the main, mechanical, oil pump. Electric pump as a main engine pump again will require big electric motors and it may be simply cheaper to drive directly from the engine. For e.g. BMW S65 engine's oil pump delivers ca. 45 LPM (Litres Per Minute) of oil at 5.5 bar pressure. [5]
Externally the largest visual change was the fitting of large crane-like gantry davits, each powered by an electric motor and capable of launching six lifeboats which were stored on gantries; the ship was designed to have eight sets of gantry davits but only five were installed before Britannic entered war service, with the difference being ...