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Title: |
1898 Article-Charles P. Willard & Co., Simplex Marine Engine |
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Source: |
Gas, Gasoline and Oil Vapor Engines, 1898 pg 270 |
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Insert Date: |
10/22/2012 9:22:28 AM |
The Simplex Naphtha Launch Engine.
A new engine, designed especially for boat service, has just been put on the market by Charles P. Willard & Co. These engines are of the two-cycle compression type, or with an impulse at each revolution of the crank. It is very simple in construction, receives its charge and exhausts through cylinder ports opened and closed by the movement of the piston at the end of the downward stroke.
A single eccentric on the main shaft operates, through a lever and two cams, the electric igniter alternately for forward and backward motion of the engine.
The valve seen on the cylinder regulates the charge from the closed-crank chamber, which is compressed by the downward stroke of the piston. The naphtha vapor and air are drawn into the crank case by the upward stroke of the piston, thoroughly mixed by the motion of the crank, and receives its maximum compression at the moment of opening the inlet port, when the compressed mixture rushes into the combustion chamber of the cylinder, while the exhaust port is still open to clear the cylinder of the products of the previous explosion.
These engines are built in sizes of 2, 4, and 6 H. P. The 2 H. P. engine weighs 300 lbs., and is suitable for a boat from 16 to 22 feet long. The 4 H. P. engine is suited for a boat 20 to 28 feet long, and weighs 500 lbs. All the engines run at a speed suitable for boat service up to 300 revolutions per minute. |
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1898 Charles P. Willard & Co., Simplex Marine Engine
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