A practical treatise on modern gas and oil engines (1902)
Grover, Frederick · Manchester, The Technical Publishing Co., Limited; [etc., etc.] · leaf 298
om whichit runs down the pipe F to the supply valves shown in detailin fig. 131. These valves act in the following way : A spiralspring R forces a double seated valve P towards the end VSpirit, therefore, passes through the open valve and remainsbeneath the plunger E. A cam shown at M, fig. 132,… … Fn- 132.—Sectional plan of Spiel engine, the spirit valve P, and compressing the spiral spring K. Thedown stroke is prolonged until the spirit is discharged by theplunger E against a cone-shaped disc in the chamber X. The
Internal combustion engines
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