US656248A - Feed-water heater. - Google Patents

Description

No. 656,248. Ptented Aug. 2|, I900.

J. r. HAUSER.

FEED WATER HEATER.

(Application filed Apr. 30, 1896.)

(No Model.)

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UNITED STATES PATENT OFFICE.

JOHANN FRIEDRICH HAUSER, OF NUREMBERG, GERMANY.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 656,24 8, dated August 21, 1900.

Application filed April 30, 1896- fo all whom it mayconocrn:

Be it known that I, J OHANN FRIEDRICH HAUSER, a subject of the German Emperor, and a resident of Nuremberg, Bavaria, German Empire, have invented certain new and useful Improvements in Steam-Engines, of which the following is a specification.

The present invention relates to feed-water heaters ofthat class in which the waste or exhaust steam from the engine is used to ac complish the heating of the feed-Water.

The object of theinvention is to utilize to the highest degree the heat contained in the exhaust-steam, and I have accomplished this by an improved construction and arrange ment of parts, as hereinafter described.

The invention is illustrated in the accompanying drawings, in which- Figure 1 is a sectional elevation of the improved apparatus. Fig. 2 is a plan view, and Fig. 3 is a detail view, partly in section.

Referring to the drawings, K represents the boiler from which a steam=pipe 01. leads to the steam-chest of the engine-cylinder D, and as the engine may be of any desired construction a more detailed description of it is not herein needed.

An exhaust-pipe 0 leads from the enginecylinder in the usual manner, and this I connect with the dome or stand-pipe R of the feed-water heater V, which pipe is provided with a safety-valve R shown on the right of Fig. 1.

From the feed-water heater V the water of condensation passes by way of pipe 1: to an oil-filterg, from which it is drawn through the pipe h by a pump 1' and forced under pressure into a pipe it, from which it may pass by a branch it direct to the boiler or through the feed-water heater,as hereinafterdescribed. A branch pipe it also connects the pump of With a vessel or tank w, to which fresh water is supplied by a pipe w, and a cock 10 is provided for the bottom of the filter g,

so that, if

desired, the water of condensation may be passed into the tank w, and thence to the pump 2' instead of through the filter. A branch W from the pipe it passes into the feed- Serial No. 589,701. (No model.)

water heater, within which it is extended back and forth to provide as much surface as possible, and finally leads out again at e, where it is provided with a safety-valve R, and is connected by a pipe m with the pump it, which in its turn connects by pipe with the boiler. By this means the water of condensation taken from the heater V through pipe o is forced back by pump '5, through pipe 70 is? into the heating-coil therein under pressure and extracts heat from the exhauststeam which is condensing therein, said water passing then through pipe m to the pump '12, by which it is forced the boiler.

Having I claim is- 1. Incombination with a boiler and engine, a feed-Water heater having circulating-pipes therein, a pipe for the exhaust-steam leading from the engine to said heater, a pump having pipe connections to the heater and to the circulating-pipes therein, said pump drawing water from the heater and forcing it mixed with fresh water through the circulating-pipes of the heater, and a second pump having pipe connections with said circulating-pipes and with the boiler for forcing the water into the boiler, substantially as described.

2. In combination with a boiler and engine, a feed-waterheater having circulating-pipes therein, a pipe for the exhaust-steam leading from the engine to said heater having a relief-valve, a pump and connecting pipes for drawing water from the heater and forcingit mixed with fresh Water through the circulating-pipes of the heater, and a second pump through pipe 0 into having pipe connections with said circulat ing-pipes and with the boiler for forcing the water into the boiler, and a relief-valve in the pipe connection between said pump and circulating-pipes, substantially as described. In witness whereof I have hereunto set my hand in presence of two witnesses. JOHANN FRIEDRICH HAUSER. Witnesses:

ANDREAS Srron, OSCAR BOOK.

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