US666181A - Boiler-furnace. - Google Patents

Description

H. A. BUCK.

BOILER FURNACE.

(Application filed Sept. 11, 1900.)

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(No ma.)

TNE MoRms PETERS co. PNOTO-L|TMO., WASHINGTON, n. c

NITED STATES PATENT Creme.

HENRY ALONZO BUCK, OF STAFFORD, CONNECTICUT.

BOILER-FURNACE.

SPECIFICATION forming part of Letters Patent No. 666,181, dated. January 15, 1901.

Application filed September 11, 1900. derial No; 29,676. (No model.)

To all whom it may concern:

Be it known that I, HENRY ALONZO BUoK, engineer, a citizen of the United States of America, residing at West Stafiord, Connecticut, have invented new and useful Improvements in Boiler-Furnaces for Compound Engines, of which the following is a specification.

My invention relates to boilenfurnaces for compound engines, and its essential feature is that besides the ordinary pipe arrangements of steam-boilers it is provided with a special tubular device connected with the receiver of the compound engine in such a manner that the steam arriving from the highpressure cylinderis passed back again to the generator with a view of being reheated.

. The invention is represented in the accompanying drawing, which is a section through a boiler.

a is the fire-box of the steam-generator; b, the fire-grate; c, the air-supply pipe; d, the discharge-passage for the fire-gases; g, the supply-pipe of the high-pressure steam or of the hot Water, which may be converted into steam of the required pressure before entering the high-pressure cylinder.

The discharge from the boiler is effected at e and the steam or the hot water may be still further dried or heated, respectively, by pass ing it through a tubular arrangement f. The pipe g, taking the steam or hot Water to the high -pressure cylinder, passes through the passage 01, which is continued close up to the engine in such a manner that allloss of heat is avoided.

I According to the present invention the steam passing out from the high-pressure cylinder passes through the pipe t', which is also placed in the said passage d and terminates at the rear part of the boiler with which it communicates. From here this steam passes through a serpentine pipe k, arranged close behind the fire-box, and hence through another serpentine pipe arranged on the top of the boiler, and finally through a pipe m to the low-pressure cylinder. This pipe we, like the pipe t', is also situated in the passage d, so that any loss of heat is not only avoided, but, on the contrary, heat is added.

It should be specially'remarked here that the steam-pipe 2', through which the steam leaving the high-pressure cylinder passes, is first passed through the lower draft-conduit of the firebox-21 e. into the place where the temperature is highest around the boilerand only afterward into a boiler zone through which the fire-gases pass after having been already deprived of the greater part of their heat.

I claim- 1. In a boiler-furnace for compound engines the combination with a passage (1 conducting the gases of combustion to the e11- gine of a pipe such as i placed within the passage (1 and conducting the steam from the high-pressure cylinder to a chamber or serpentine pipe It inside the furnace and a pipe m also within the passage (1 and conducting the steam from said serpentine pipe to the lowpressure cylinder substantially as described.

2. In a boiler-furnace for compound engines the combination with a passage d conducting the gases of combustion to the engine of a pipe such as 2' placed within the passage d and conducting the steam from the high-pressure cylinder to a chamber or serpentine pipe is inside the furnace and a pipe m also within the passage 01 and conducting the steam from said serpentine pipe to the low-pressure cylinder and a pipe such as c surrounded by the passage dand conducting the incoming air to the fire-grate substantially as described.

3. In a boiler-furnace for compound engines the combination with a passage (1 conducting the gases of combustion to the engine of a pipe such as i placed within the passage d and conducting the steam from the high-pressure cylinder to a chamber or serpentine pipe is inside the furnace and a pipe m also within the passage (1 and conducting the steam from said serpentine pipe to the low-pressure cylinder and a pipe such as c surrounded by the passage 01 and conducting the incoming air to the fire-grate, and a pipe g conducting the hot Water or the steam from the boiler and arranged within the passage 11 substantially as described.

i. In a boiler-furnace for compound engines the combination with a passage (1 conducting the gases of combustion to the engine of a pipe such as 11 placed within the surrounded by the passage 01 and conducting the incoming air to the fire-grate and a pipe 9 for the hot water or steam and a pipe h for 10 the water-supply both pipes g and h being placed within the passage (1 substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY ALONZO BUCK.

Witnesses:

WOLDEMAR HAUPT, HENRY HASPER.

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