Gas Engines and Producers; A Treatise on the Modern Development of the Internal-Combustion Motor and of Efficient Methods of Fuel Economy and Power Production (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...the direction of flow of the gas. A small boiler supplies steam to the blower. The gas escapes from the producer at a high temperature, and goes to an ec0n0mizer, where it gives up much of its heat either(1) to fresh airwhich is about to be forced through tubes in the producer, or (2) to water the vapor from which mixes with the air, or (3) to both. The gas then passes to the scrubber, where it meets a spray of cold water, which further cools it and takes from it dust and solid impurities, after which it goes to the purifier for the extraction by chemical process of certain undesirable components and for the completion of the removal of solids, or to a dry scrubber, and thence to the gas-holder. If anthracite coal or coke is used, very little chemical purification is necessary; if bituminous coal is being burned, the cleaning is somewhat more complicated, as the tar and other troublesome substances in the gas have to be extracted before it can be used. With a pressure producer, it is very necessary that the producer and all the auxiliary apparatus between it and the engine should be gas-tight. A leakage of gas is objectionable, not only on account of the decrease of economy, but also because the gas is poisonous and has frequently caused loss of life. As it is inodorous and colorless, a leakage is not easily detected. The suction type of the gas-producer plant can be used only when the operation of the engine is continuous for long periods. It has considerable advantage over the pressure type in compactness, but is rather troublesome to start. The flow of air and vapor through the fuel in the producer or generator (Fig. 79), is dependent on the suck ing action of the engine each time it takes in a charge, so that no boiler is needed to..