US114078A - Improvement in valves and steam-chests for engines - Google Patents

Improvement in valves and steam-chests for engines Download PDF

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Publication number
US114078A
US114078A US114078DA US114078A US 114078 A US114078 A US 114078A US 114078D A US114078D A US 114078DA US 114078 A US114078 A US 114078A
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Prior art keywords
steam
valve
chests
valves
engines
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86839—Four port reversing valves

Definitions

  • FIG. 1 represents a vertical transverse section of my improved valve, taken on the plane of the line a: 00, Fig. 2.
  • Fig. 2 is a longitudinal vertical section of the same.
  • Fig. 3 is a longitudinal vertical section of my improved double valve-chest and valve.
  • Fig. 4 is a longitudinal horizontal section of the same without the valve.
  • Fig. 5 is a vertical trans- ,verse section of the same, taken on the plane of the line y y, Fig. 3.
  • Fig. 6 is a vertical transverse section of the same, taken on the plane of the line z 2, Fig. 3.
  • This invention relates to a new construction and arrangement of oscillating and rotating valves in the steam-chests of steam-engines, and has for its object to provide a more perfect control of the steam inlets and outlets and a simpler construction of all the parts.
  • the invention consists principally in arran gin g the conical valve A, which is flattened on two sides, within a steam-chest, B, that has four ports, a, b, c, and (l.
  • the upper port, a is in communication with the inlet-pipe i, and the lower port, I), with the outlet-pipe j.
  • the ports 0 and 61 lead to the ends of the steamcylinder in the ordinary manner.
  • the several ports are all equal distances apart, as shown in Fig. l.
  • the valve when set, as in Fig. 1, connects the port a with c and the port 01 with b.
  • the other position of the valve connects a with d and c with b.
  • the steam is thereby guided to opposite ends of the cylinder in the ordinary manner.
  • the valve may be rotated in the chest B, when every fourth part of a revolution will produce a change in the steam-passage.
  • the valve may be rotated with any desired degree of speed, and will, while it closes two opposite ports, serve as a cut-off to use the steam expansively.
  • the conical shape of the valve serves to keep it snug on the seat, and to make up for wear, as it allows the steam reaching the ends, by leakage, to apply more pressure to the large than to the small end of the valve.
  • a chamber, D which has four ports, 6, f, g, and h.
  • the top port, 0, communicates with the upper port, a, of the main chest B, and the bottom port, f, with the lower port, I), of the steam-chest B.
  • the steam enters at the port g and exhausts from h, the inlet and outlet pipes being removed from the chest B to D, as shown in Fig. 4.
  • valve 0 By setting the valve 0 so as to connect the inlet-port g with e, as in Fig. 5, it will admit steam to the top of the steam-chest B, and exhaust it from the bottom of the same through f and h. By shifting the valve 0, steam may be conducted to the lower part of the steamchest B and exhausted from the top of the same, thereby reversing the motion of the engine.
  • the reversing valve and chest can also be used as a perfect stop-valve at half the motion of the reversing-lever, so that in an emergency but one lever is required.

Description

P. N. WOODS.
Improvement in Valves and Steam-Chests for- Engines.
Patented April 25, 1871.
UNITED STATES PATENT OFFICE.
PETER N. WOODS, OF FAIRFIELD, IOWA.
IMPROVEMENT IN VALVES AND STEAM-CHESTS FOR ENGINES.
Specification forming part of Letters Patent No. 114,078, dated April 25, 1871.
To all whom it may concern:
Be it known that I, PETER N. Woons, of Fairfield, in the county of Jefferson and State of Iowa, have invented a new and Improved Valve for Steam-Chests; andl do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specifica tion, in which- Figure 1 represents a vertical transverse section of my improved valve, taken on the plane of the line a: 00, Fig. 2. Fig. 2 is a longitudinal vertical section of the same. Fig. 3 is a longitudinal vertical section of my improved double valve-chest and valve. Fig. 4 is a longitudinal horizontal section of the same without the valve. Fig. 5 is a vertical trans- ,verse section of the same, taken on the plane of the line y y, Fig. 3. Fig. 6 is a vertical transverse section of the same, taken on the plane of the line z 2, Fig. 3.
Similar letters of reference indicate corresponding parts.
This invention relates to a new construction and arrangement of oscillating and rotating valves in the steam-chests of steam-engines, and has for its object to provide a more perfect control of the steam inlets and outlets and a simpler construction of all the parts.
The invention consists principally in arran gin g the conical valve A, which is flattened on two sides, within a steam-chest, B, that has four ports, a, b, c, and (l. The upper port, a, is in communication with the inlet-pipe i, and the lower port, I), with the outlet-pipe j. The ports 0 and 61 lead to the ends of the steamcylinder in the ordinary manner. The several ports are all equal distances apart, as shown in Fig. l. The valve, when set, as in Fig. 1, connects the port a with c and the port 01 with b. The other position of the valve connects a with d and c with b. The steam is thereby guided to opposite ends of the cylinder in the ordinary manner. Instead of being oscillated the valve may be rotated in the chest B, when every fourth part of a revolution will produce a change in the steam-passage.
The valve may be rotated with any desired degree of speed, and will, while it closes two opposite ports, serve as a cut-off to use the steam expansively. The conical shape of the valve serves to keep it snug on the seat, and to make up for wear, as it allows the steam reaching the ends, by leakage, to apply more pressure to the large than to the small end of the valve.
By applying to the chestasecond valve, (J, as in Figs. 3 and 4, in line with the first valve, A, I am enabled to cause the reversal of the engine by a slight motion of said valve C.
The same works in a chamber, D, which has four ports, 6, f, g, and h. The top port, 0, communicates with the upper port, a, of the main chest B, and the bottom port, f, with the lower port, I), of the steam-chest B. The steam enters at the port g and exhausts from h, the inlet and outlet pipes being removed from the chest B to D, as shown in Fig. 4.
By setting the valve 0 so as to connect the inlet-port g with e, as in Fig. 5, it will admit steam to the top of the steam-chest B, and exhaust it from the bottom of the same through f and h. By shifting the valve 0, steam may be conducted to the lower part of the steamchest B and exhausted from the top of the same, thereby reversing the motion of the engine. The reversing valve and chest can also be used as a perfect stop-valve at half the motion of the reversing-lever, so that in an emergency but one lever is required.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The aligned conical valves A 0, combined,
as described, with the four-ported steam-chests B 1), when all are constructed and arranged to operate in the manner described.
PETER N. woons.
Witnesses W. H. DAVIS, B. GAINES.
US114078D Improvement in valves and steam-chests for engines Expired - Lifetime US114078A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100105618A1 (en) * 2007-02-12 2010-04-29 Arjo Lysander De Boer Non-Natural Recombinant Gelatins with Enhanced Functionality

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100105618A1 (en) * 2007-02-12 2010-04-29 Arjo Lysander De Boer Non-Natural Recombinant Gelatins with Enhanced Functionality

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