US161498A - Improvement in slide-valves - Google Patents
Improvement in slide-valves Download PDFInfo
- Publication number
- US161498A US161498A US161498DA US161498A US 161498 A US161498 A US 161498A US 161498D A US161498D A US 161498DA US 161498 A US161498 A US 161498A
- Authority
- US
- United States
- Prior art keywords
- valve
- steam
- valves
- cells
- slide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000003137 locomotive Effects 0.000 description 2
- 230000001050 lubricating Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
Images
Classifications
-
- 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
- F16K11/065—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 linearly sliding closure members
- F16K11/0655—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 linearly sliding closure members with flat slides
-
- 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
- Y10T137/8667—Reciprocating valve
Definitions
- My improvements are designed to prevent any abnormal wear and to allow the frictional surface or surfaces of contact to attain a high degree of smoothness and polish, with consequent diminution of resistance to the movement of the valve.
- Figure l is a plan of the valve.
- Fig. 2 is a transverse section
- Fig. 3 is a longitudinal section, of the same.
- Fig. 4 is a longitudinal section
- Fig. 5 is a transverse section, of the valve, represented on a reduced scale in connection with a steam-chest, B.
- a are the cells hereinbefore referred to, formed in the under face of the valve, both in the parts that cover the ports as well as in the lateral portions of the valve-face.
- valve A is placed in steam-chest B on its seat over the induction and exhaust ports. It 1s supposed to be in one of its extreme positions.
- rIhe ranges 7 S 9 10 of cells in the lateral portions of the valve are constantly kept filled with live steam 011 the one hand, and exhaust steam on the other.
- the steam and particles of water and lubricant carried by the steam are, through the medium of these cells, distributed over the frictional surfaces of the valve and valveseat, with the beneficial effects above set forth.
- valve-face The small cells with which the valve-face is tted are simply vehicles to effect a more even, constant, and thorough distribution of lubrication between the surfaces of contact.
- the arrangement of the cells may vary without departure from my invention.
- the steam-valve A In combination with the valve-seat, the steam-valve A, having that face which is in contact with the valve-seat fitted with numerous separate and independent cells a, which, while so formed and arranged as not to permit live steam to interpose and exercise material pressure between the valve and its seat, will take up particles of steam and convey them to the parts of the valve and seat to be lubricated, as shown and described.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Control Of Turbines (AREA)
Description
Slide-Valve.
Pvatented March 30,1875.
In vente?" f ,d
THE GRAPHIC C0.PHOTO -LITILSQBUH PARK PLNIF .Y.
VICTOR FORQUENOT, 0F PARIS, FRANCE.
IMPRVEMENT IN SLIDEVALVES.
Spaciication forming part of Letters Patent No. 161,495, dated March 30, 1875; application filed December 24, 1874.
To all whom t may conce-ru:
Be it known that I, VICTOR FORQUENOT, of Paris, France, have invented certain new and useful Improvements in Slide-Valves, of which the following is a speciication:
It is well known that the employment of steam at a high pressure is the cause of consi derable trouble in machines or engines where the steam is used. Slide-valves and their seats are especially liable to excessive wear, in consequence of the sticking of their surfaces of contact. Attempts have been made to remedy the above-named difficulty by improved modes of lubricating; but this is feasible only where the temperature of the steam is not sufficiently high to modify the constitution of the lubricants employed. In steamengines, such as locomotives, &c., the rapidity of movement of the mechanism causes the valves and valve-seats to wear rapidly, especially the lateral faces, which are in continuous contact.
My improvements are designed to prevent any abnormal wear and to allow the frictional surface or surfaces of contact to attain a high degree of smoothness and polish, with consequent diminution of resistance to the movement of the valve.
I accomplish my object by the continuous in'terposit-ion between the surfaces of contact of oil, steam, and water, which the latter carries with it, which result is attained by means of cells or pits formed in the frictional surfaces or under face of the valve, in which cells during the working of the engine steam, water, and oil lodge, and are thence distributed between the valve and seat.
The accompanying drawing represents the manner in which my invention is or may be carried into e'ect.
Figure l is a plan of the valve. Fig. 2 is a transverse section, and Fig. 3 is a longitudinal section, of the same. Fig. 4 is a longitudinal section, and Fig. 5 is a transverse section, of the valve, represented on a reduced scale in connection with a steam-chest, B.
a are the cells hereinbefore referred to, formed in the under face of the valve, both in the parts that cover the ports as well as in the lateral portions of the valve-face.
In Figs. 4 and 5 the valve A is placed in steam-chest B on its seat over the induction and exhaust ports. It 1s supposed to be in one of its extreme positions.
Referring to the ranges of cells c, marked l, 2, 4, and 6 in Fig. 3, it will be seen that, when the valve is in the position shown 1n Fig. 5, they will be filled with steam obtained in part from the exhaust and in part from the steam-admission ports.
When the valve shifts or reverses its position, the ranges 3 and 5 of the cells will in turn be brought in place to receive a like supply.
rIhe ranges 7 S 9 10 of cells in the lateral portions of the valve (see Fig. 2) are constantly kept filled with live steam 011 the one hand, and exhaust steam on the other.
The steam and particles of water and lubricant carried by the steam are, through the medium of these cells, distributed over the frictional surfaces of the valve and valveseat, with the beneficial effects above set forth.
It will be understood that this improvement has nothing in common with valves in which live steam is admitted to the under face of the valve, or to under faces on the valve, for the purpose of equilibrating the pressure and balancing the valve.
The small cells with which the valve-face is tted are simply vehicles to effect a more even, constant, and thorough distribution of lubrication between the surfaces of contact.
The arrangement of the cells may vary without departure from my invention.
WVhat I claim, and desire to secure by Letters Patent, is-
In combination with the valve-seat, the steam-valve A, having that face which is in contact with the valve-seat fitted with numerous separate and independent cells a, which, while so formed and arranged as not to permit live steam to interpose and exercise material pressure between the valve and its seat, will take up particles of steam and convey them to the parts of the valve and seat to be lubricated, as shown and described.
In testimony whereof` I have signed my name to this specification before two subscribing witnesses.
V. FORQUENOT.
Witnesses EMILE BARRAULT, Auer. VINCK.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US161498A true US161498A (en) | 1875-03-30 |
Family
ID=2230907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US161498D Expired - Lifetime US161498A (en) | Improvement in slide-valves |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US161498A (en) |
-
0
- US US161498D patent/US161498A/en not_active Expired - Lifetime
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