GB368467A - Improved means for storing the cooling water of internal-combustion engines - Google Patents

Abstract

368,467. Cooling cylinders. BEESTON, J. P., Ludham Hall, Braintree, Essex. Jan. 23, 1931, No. 2228. [Class 7 (ii).] A tank 1, for storing the cooling water of an engine is insulated by a vacuum jacket 5, which may contain sheet metal reflectors, the vacuum being obtained from the induction pipe through a pipe 18 containing a non-return valve 20 ; a seal 21 comprising a tank containing a substance, e.g. beeswax, which solidifies when the engine cools closes the end of the pipe. The flow of cooling water into the tank 1 through a pipe 10 and a valve 8 is assisted by engine suction through a pipe 15 containing a non-return valve 22 ; when it is to be returned valves 8, 16 are opened and closed respectively and it is forced back to the circulating system by a pump 17, or as described below. A circulating pipe 9 prevents freezing in the pipe 10. When the tank 1 is empty it acts as a stabilizer to suction-actuated accessories, e.g. brakes, a wind-screen wiper 23, or a horn 24. In an alternative method of emptying the tank 1 a pump is driven by an electric motor, driven in turn through an overrunning clutch by the engine ; when the engine stops the water flows through the stationary pump to the tank. The apparatus is normally used for storing the water when the engine is not in use but may also contain a heater to be used to add hot or cold water to the cooling system when the engine is running. Syringes; pistons.-A further method of emptying the tank 1 comprises a piston 25 consisting of telescopic rings 25b and surrounded by a rubber sleeve 32 attached to the tank wall at 33. The piston is mounted on a pair of lazytongs 28, 29 pivoted on a rod 30 and extended by springs 26, 27 the strength of which is arranged so that the piston is drawn to the left by suction through the pipe 15, before it telescopes.