Improving Cold Starting
Page 80
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AN improved method of injecting small quantities of a volatile • Combustible fluid into the air intake of a compressionignition engine to assist in cold starting is shown in patent No. 854,130 (D. King and M.G.A. Industries, Ltd., 11 Forest Road, Loughton, Essex).
The drawing shows the injection unit, which can be mounted in any convenient position and piped to the engine air intake through the outlet (1). In operation, the barrel portion (2) is removed and a capsule (3), made of soft material and containing ether or a similar fluid, is placed in the space (4).
The plunger is refitted and when the engine is to bz started, the upper handle is pressed down. This punctures the capsule and further movement squeezes out the fluid which runs into the bottom well. Continued movement punctures the bottom of the capsule as well and the bulbous nose (5) squeezes it dry.
The plunger is then used as a pump to force vapour past a one-way valve (6) into the engine air intake. The puncturing needle is barbed so that it extracts the empty capsule on the upstroke.
In a second form shown in the patent. the puncturing and pumping operations are performed by separate units so allowing two capsules' to be used,