US87073A - Improvement in steam-engines - Google Patents

Improvement in steam-engines Download PDF

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Publication number
US87073A
US87073A US87073DA US87073A US 87073 A US87073 A US 87073A US 87073D A US87073D A US 87073DA US 87073 A US87073 A US 87073A
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Prior art keywords
steam
valve
cylinder
head
ports
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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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • F16K11/0743—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces with both the supply and the discharge passages being on one side of the closure plates
    • 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

Definitions

  • Ww-enea W. G. SAVAGE, orKNoXvILLn, IowA.
  • Figure 3 is a plan view of the head of the cylinder, with the va1vethe steam-chest being removed;
  • Figure 4 is a bottom view of the steam-chest.
  • A represents the head of the cylinder, provided 'at its centre with a hub, B,around which the valve revolves. l
  • the head A has two ports, a a, as seen in g. 3.
  • the valve'O which ts around the hub B, ground on both sides, so as to make a perfect steam-fit between the head and chest, has two sets of portstwo receiving-ports, b b, and two exhaust-ports, c c, the ports' of the same kind being opposite each other.
  • the valve when provided with that number of ports, is driven -by a gear, D, of one-half the size of the valve, as shown in lig-l.
  • the valve is turned by the gear-Wheel D, in the manner set forth in my patent above mentioned.
  • the head A, valve O, and steam-chest E, which latter covers the valve, are to be exactly alike on both ends of the cylinder, with the exception of the hole for the piston-rod and stuffing-box, which -is only on one of them.
  • the receiving-ports b b on one valve must connect with 'the exhaust-ports c c on the other, thus making lthe working-arrangement complete.
  • the steam-chest E is provided with a guard or Harige, F, which' protects the teeth on the valve O';
  • the stuffing-box H is attached to the steam-chest by two bolts, in the usual form of attachment to cylinder-head, the hub B, on which the valve Grevolves, forming the bottom ofthe stuiiing-box, as well as hub through which the piston-rod works, and a hole is cut through the centre of the steam-chest, forming the packing-space in which the stuiing-box enters.
  • valves may be provided with more or less ports than herein set forth, only so that ports of the same -kind are opposite to each other.
  • valve tobth heads of the cylinder The advantages of applying the valve tobth heads of the cylinder is, in the iirst place, an entire saving of all the steam, as none can .exhaust but what has been used for direct pressure in the cylinder; the thickness of the head only being the length of port, more steam by faris saved than is necessary to drive both the valves. i
  • a long-stroke engine can be used with equal econonly of steam as a short-stroke, as'there is no long port-from centre to end to be exhausted without use.

Description

Ww-enea W. G. SAVAGE, orKNoXvILLn, IowA.
Leners Parma No. 87,073, @ad February 16,1869.
rMPRovmmN-r IN STEAM-ENGI'n-ns'. Y
The Schedule referred to in these Lettere Patent and making part of the same.
To all whom 'it may concerny Be it known that I, W. Gr. SAVAGE, of Knoxville,- 'l
in the county of Marion, and in the State of Iowa, have invented certain new and luseful Improvements in Cylin-r der for Steam-Engines; and do hereby declare that the My invention relates to an improvement on my steam-exigirle;7 patented J uly 14, 1868; and
Its nature consists in the arrangement of a valve, of similar construction to the one .in the patent referred to, on the opposite end of the same cylinder, and with reference to the head of the said cylinder, through which the piston-rod passes, and so arranged, with reference to the valve lof my said patent, as to have two ports of a different kind open at the sam`e time in each head.
In order to enable others skilled in the art to make and use my invention, I will now proceed to describe its construction and operation, referringto the annexed drawings, which form a part of this specification, and in Which- Figure 1 is a plan view of the steam-chest and head of cylinder;
Figure 2, a side view of the same;
Figure 3 is a plan view of the head of the cylinder, with the va1vethe steam-chest being removed; and
Figure 4 is a bottom view of the steam-chest.
A represents the head of the cylinder, provided 'at its centre with a hub, B,around which the valve revolves. l
The head A has two ports, a a, as seen in g. 3. The valve'O, which ts around the hub B, ground on both sides, so as to make a perfect steam-fit between the head and chest, has two sets of portstwo receiving-ports, b b, and two exhaust-ports, c c, the ports' of the same kind being opposite each other.
The valve, when provided with that number of ports, is driven -by a gear, D, of one-half the size of the valve, as shown in lig-l.
The valve is turned by the gear-Wheel D, in the manner set forth in my patent above mentioned.
The head A, valve O, and steam-chest E, which latter covers the valve, are to be exactly alike on both ends of the cylinder, with the exception of the hole for the piston-rod and stuffing-box, which -is only on one of them.
The chests and valves, on both heads of the cylinder,
are to be held r'mlyby bolts passing through four ears, d d,`on the outer periphery of' the steam-chest.
In setting the valves in connection with the running-gear, the receiving-ports b b on one valve must connect with 'the exhaust-ports c c on the other, thus making lthe working-arrangement complete.
The steam-chest E is provided with a guard or Harige, F, which' protects the teeth on the valve O';
and another guard, Gr, is also placed on the head of the cylinder, which protects the joint between the gear-wheel D and valve C.
The stuffing-box H is attached to the steam-chest by two bolts, in the usual form of attachment to cylinder-head, the hub B, on which the valve Grevolves, forming the bottom ofthe stuiiing-box, as well as hub through which the piston-rod works, and a hole is cut through the centre of the steam-chest, forming the packing-space in which the stuiing-box enters.
The valves may be provided with more or less ports than herein set forth, only so that ports of the same -kind are opposite to each other.
The advantages of applying the valve tobth heads of the cylinder is, in the iirst place, an entire saving of all the steam, as none can .exhaust but what has been used for direct pressure in the cylinder; the thickness of the head only being the length of port, more steam by faris saved than is necessary to drive both the valves. i
It is also easily seen that my double ports, with so free an access to the cylinder in receiving and exhaustingthe steam, are lsuperior indirect action in pressure and direct freedom of exhaust.
A long-stroke engine can be used with equal econonly of steam as a short-stroke, as'there is no long port-from centre to end to be exhausted without use.
Having thus fully described my invention,
What I claim as new, and-desire to secure by Let ters Patent, is A The arrangement of the valves, constructed as herein described, with reference to the cylinder-head of a steam-engine, throughwhich the piston-rod passes,- substantially as herein set forth.
In testimony that I claim the foregoing, I have hereunto set my hand, this 5th day of August, 18 68.
W. G. SAVAG'E.
Witnesses:
JOSEPH BnoBsT, Gno. W. MARTIN.
US87073D Improvement in steam-engines Expired - Lifetime US87073A (en)

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