On Gas Engines; Wih Appendix Describing a Recent Engine with Tube Igniter (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 Excerpt: ...Bunsen burner is also shown in fig. I, and enters the chimney above the plane of the section, as drawn. The supply of gas for the burner is regulated by a screwed taper plug z, and there are the usual air holes for the admission of air. When the exhaust takes place, the products of combustion will fill the tube I, and it is only towards the end of the period of compression that gas which is capable of being lighted is forced sufficiently far along the tube to take fire and to produce the necessary explosion. In larger-sized engines a valve, called a timing valve, is put into a chamber at the base of the ignition tube so as to control the period when the gas could enter the tube, but this is omitted in the small engine under examination, and the passage FD (see fig. i) is quite open. 8. End View Of The Engine. Fig. 8 represents an end view of the cylinder C, given in elevation, and shows the position of the tube igniter, together with that of the pendulum regulator, the gas supply pipe, and the exhaust pipe. The student will no doubt compare this drawing with some of those previously examined, and it will be seen that the tube igniter, the Bunsen burner, and the chimney are placed just outside the cylinder cover at one end, as previously indicated in fig. I. The gas-tube for the supply of the Bunsen burner B B is marked P in the sketch. Below the chimney and on one side of it is the pen dulum regulator QRST, which has already been fully described. The gas-pipe, marked 'GAS, ' leads directly into a chamber attached to a bracket underneath the base of the chimney, the chamber being provided with a stop cock for turning on the supply of gas, as well as the valve B, "held on its seat by a spring, and opened each time that the finger F strikes against the end...