US930525A - Lubricator for locomotives. - Google Patents

Description

E. BLAUHORN. LUBBIOATOR FOR LOCOMOTIVES. APPLIOATION FILED JUNE 29, 1908.

Patented Aug. 10,1909.

2 SHEETS-811E151 1.

v930,525. Fig.1

"F-H/ W Witnesses" f I O I Inventor. 2W7. m,

ANDREW. a. GRAHAM ca. PHOTO-UTHGRAFHERS. WA$NINGTOM D c.

E. BLAUHORN. LUBRIGATOR FOR LOCOMOTIVES.

APPLIOATION'I'ILED JUNE 29,1908.

Patented Au 10, 1909] 2 SHEETS- SHEET Z.

. I M. l Q T n Witnesses. Wm

UNITED STATES EMANUEL BLAUHORN, OF VI ENNA, AUSTRIA-HUNGARY.

LUBRICATOR FOR LOCOMOTIVES.

Specification of Letters Patent.

Application filed June 29,

Patented Aug. 10, 1909.

1908. Serial N0. 440,871.

To all whom it may concern:

Be it known that I, EMANUEL BLAUHORN, a subject of the Emperor of Austria-Hungary, residing at Vienna, Austria-Hungary, have invented certain new and useful Improvements in Lubricators for Locomotives; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to sight feed lubricators and has for its object certain novel features of construction to obviate certain objections to such lubricators as they are now constructed, as will hereinafter be more fully described and claimed.

Referring to the drawings in which like parts are similarly designated, Figure 1 is a view of a lubricator partly in elevation and partly in longitudinal central section. Fig. 2 is a vertical central section taken at right angles to that of Fig. 1. Fig. 3 shows the manner of connecting the lubricator to a boiler and Fig. 4 is a vertical section through -the upper part of the lubricator showing a modi cation.

For diluting the oil and preventing the oil from congealing in lubricators and the pipe system connected thereto, lubricators operated with condensation water are almost universally used for lubricating in steam chambers, such as the cylinders and valve chests of locomotives. It is usual for the chamber in which the oil drops rise, which chambers are customarily filled with water and are contained within sight glasses, to be connected through a narrow outlet with the pipe conducting the oil to the part to be lubricated. These small outlets are so narrow that the variations of pressure at the part to be lubricated are not at once transmitted to this chamber. Experience has shown that on account of the considerable variations of pressure that occur at the place to be lubricated on locomotives, which pressure often falls from 15 atmospheres over pressure rapidly .below atmospheric pressure, these narrow openings tend to prevent the regular and uniform formation of the oil drops and the number of drops of oil that rise are often. more than double the quantity required when the pressure at the place to I be lubricated is essentially reduced. In order to prevent these difliculties the oilers as heretofore used had the pipe conduits leading to the place to be oiled .throttled at their exit ends. Usually in such lubricators a fine steam jet was conducted into the oil conduit to prevent a stagnation of the oil and steam mixture and also to prevent the adhesion of the saponified oil to the walls of the lubricator and its pipes. These objects have not been fully achieved by the oiling devices heretofore constructed. Since the oilers are usually arranged in the cabthe oil conduits must have considerable length, especially when they are led outside the locomotive and then produce a partial condensation of the steam used to aid the flow of oil mixture in the pipes while on its way to the place to be oiled through the throttled outlet and in any case decreases its volume, becomes wet or primed and meets with a certain resistance at the outlet opening so that the oil is not properly blown through the tubes. If we permit a throttling of the oil pipes there is an energetic blowing out of these pipes especially upon reducing the pressure at their ends, but the sight glass will not be suificiently protected against variations of pressure.

The objects of the present invention are to produce an energetic blowing through the oil conduits u on reduced pressure at the lace of use an to maintain within the chamher of the lubricator a similar pressure in order that a complete and regular formation of oil-drops will take place upon variations of pressure.

To these ends the present invention consists essentially in that the small opening of the lubricator through which the mixture of steam and oil passes, discharges directly into a chamber which is connected by a second conduit with the steam space of the lubricator and discharges into the oil conduit. The cross section of the entrances into said chamber are maintained greater than the cross section of the exit from the chamber into the oil conduit; consequently there is maintained between the lubricator and the oil conduit an elastic expansion chamber that reduces the variations of pressure transmitted from the ends of the oil tubes at the place to be used.

The condenser e of the oiler, Fig. 3, is connected by a tube 0 controlled by a valve b to the boiler a. The lower art of the condenser chamber is filled with water of condensation and forms the water space of the condenser while above the water contained therein, the space is filled with. boiler steam. Below the condenser is the oil chamber '6 and a passage V controlled by suitable valve, (Fig. 2), leads to atube WV conducting water from the water s ace of the condenser to near the bottom of the, oil chamber. The oil contained. in said chamber is forced upward by the water andalways maintained at the top of said chamber where it fiows into the open end of pipe p connected at its lower end to a passage eading to the valve controlled drop-forming nozzle f in the sight glass 7 The sight glass at its upper end enters the lower end of the trap n connected by a con- .duit (Z to the lower end of a pipe Z whose upper end projects in the steam space of the condenser so that the sight glass is maintained under boiler pressure while there is a slight excess of pressure maintained in the passage 1' due to the height of the water column in the water space which slight excess of pressure is sufiicient to force the drops of oil through the drop-forming nozzle The oil in the trap n mixes with the steam coming from the steam space of the condenser through pipe Z and aassage d and passes throughthe small orifice t at the top of said trap forming a fine stream of mixed steam and oil. This mixture of steam enters a chamber 9 connected by a passage way m with the lower end of apipe 7L, preferably but not necessarily, concentric with the pipe Z, which pipe it also enters the steam space of the condenser thereby forming an annular passageway for steam between pipes h and Z which steam meets the mixture of steam and oil coming through the opening t and passes through the opening at at the top ofthe chamber g to the distributer pipes a. The exit opening at is so measured that the area of the entrance of the passage m into the chamber g, and the area of t are together larger than the smallest cross section of chamber 9 is 'ca' able of receiving more steam than can pass fi om it at w, it acts as a reservoir or cushionthat prevents the variations of pressure arising in the oil pipe at from seriously affecting the exit of rich oil mixture through 25.

In the modification shown in Fig. 4, the chamber 9 is formed within a nozzle like member screwed into place. The passages (1 connecting the chamber g with the passage m are inclined hpwardly and sup )ly the steam from the steam space of the condenser. The lower end of the nozzle contains the passage 21 for the entrance of the rich oil mixture. The exit at .r is tapered on twardly in order to give the steam and oil mixture a more ready exit from the nozzle. The narrowest cross section of :1: is considerably smaller than. the sum of the entering cross sections to the chamber 9.

I claim In a lubricator of the type described, the

Since the combination with the condenser and the oil JOSEF RUBAscn, ROBERT VJ. HEINGARTNER.

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