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Title: |
1895 Article-Ball Engine Co., Triple Expansion Engine |
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Source: |
Modern Mechanism 1895 pgs 306-307 |
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Insert Date: |
6/9/2011 8:22:05 PM |
The Ball Engine.—Fig. 27 represents a double-tandem condensing triple-expansion engine made by the Ball Engine Co., Erie. Pa. This engine is built in sizes of 300, 400, 500, 600, and 700 horse-power.
Fig. 28 shows a section through the steam-chest and valve of the Ball engine. Fig. 29 shows three views of the construction of the valve. It. consists of two parts, which are connected by telescopic sleeves, allowing each half to adjust itself to its seat. The sectional view shows the manner of steam distribution to the cylinder, and the operation of the valve. This double-faced valve is held in constant and steam-tight
contact with an upper and lower horizontal valve-face, whose areas, in proportion to the surface of the valve, are identical. The live steam enters the upper side of the valve, and, being enclosed by the telescopic shells, presses the faces apart with relation to each other, and against the port or passage-way surface, as shown. By this arrangement there is only a sufficient percentage of the whole area of each valve subjected to unbalanced pressure to insure steam-tightness. |
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1895 Ball Engine Co., Triple Expansion Engine
1895 Ball Engine Co., Triple Expansion Engine Steam Chest & Valves
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