US637994A - Relief-valve for engine-cylinders. - Google Patents
Relief-valve for engine-cylinders. Download PDFInfo
- Publication number
- US637994A US637994A US1899703859A US637994A US 637994 A US637994 A US 637994A US 1899703859 A US1899703859 A US 1899703859A US 637994 A US637994 A US 637994A
- Authority
- US
- United States
- Prior art keywords
- valve
- relief
- safety
- spring
- plug
- 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
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
- F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
- F16K15/038—Dual valve members with hinges crossing the flow line substantially diametrical having a common hinge
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- 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
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7771—Bi-directional flow valves
- Y10T137/7772—One head and seat carried by head of another
- Y10T137/7774—Supporting valve spring carried by supporting valve
-
- 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
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7771—Bi-directional flow valves
- Y10T137/7772—One head and seat carried by head of another
- Y10T137/7777—Both valves spring biased
-
- 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
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7838—Plural
- Y10T137/7839—Dividing and recombining in a single flow path
Definitions
- Figure 1 is a central sectional view of a relief-valve mechanism constructed in accordance with my invention, the parts being shown in their normal relations.
- Fig. 2 is a similar view showing the parts in the positions which they occupy when subjected to an excess of pressure in the cylinder.
- Fig. 3 is a detail view of the safetyvalve detached.
- Fig. 4 is a similar view of the relief-valve detached.
- valve-casing provided with a terminal threaded nipple 2, adapted to be seated in the blow-oif opening ofa locomotive or other engine cylinder, said casing having an interior safety-valve seat 3, to which is tted a safety-valve 4t, normally held seated by an operating-spring 5, of which the tension may be varied by means of an adjustable plug 6, threaded in the lower end of the casing, said plug being annular or tubular in construction to provide a passage longitudinally through the casing for the relief of pressure in the cylinder when the safety-valve is unseated.
- the head of the safetyevalve is cut away or channeled, as shown at 7, whereby while the diameter of the head is such as to tit approximately in the bore of the casing, and thus guide the safety-valve in its movements toward and from its seat, fluid passing through the valveseat is adapted to pass the valve to reach the outlet 8 in the terminal plug.
- the safetyvalve is also provided with a reduced stem 9, andthe rear or lowerside of the valve-head forms a shoulder against which the seatingspring bears.
- the safety-valve with its stem, is of tubular construction, and the front or upper portion of the channel 10 therein is enlarged or counterbored and is constructed to form a relief-valve seat 11 to receive the relief-valve 12, whereby said relief-valve is housed within the safety-valve.
- Transverselyspanning the enlarged or counterbored portion of the channel in the safety-valve is a stop-pin 13 to limit the upward or unseating movement of the relief-valve, and said stop-pin is removably fitted in place by means of a threaded shoulder 14 thereof, whereby the removal of the relief valve for purposes of repair or cleansing is facilitated.
- the relief-valve is provided with a webbed guide-stein 15 to lit in the bore of the safety-valve stem, and thus allow a passage between its sides and said walls of the channel, and bearing against the lower end of the relief-valve stem is an unseating-spring 16, of which the tension may be varied by means of an adjusting-plug 17, threaded in the lower end of the bore of the safety-valve stem, said plug being tubular or of annular construction to communicate with the bore of the safety-valve stem, and thus provide for the escape from the bore of the safety-valve of water of condensation when the relief-valve is unseated.
- the relietvalve which may be termed a low-pressure valve, is normally held unseated by the light unseatingspring employed in connection therewith, and hence during the return stroke of the piston in the cylinder to which the valve mechanism is applied or during the time that said piston is approaching the valve in question water of condensation in advance of the piston may escape through 'the relief-valve seat and thence through the channel of the safetyvalve stem and the opening in the main adjusting-plug (i.
- the tension of the reliefvalve spring is so small that a slight increase of pressure in the cylinder, as by thev should there be an excess of pressure in the cylinder or a pressure liable to result in injury to the operating parts of the vmachine the safety-valve will be unseated to allow the escape of such excess, and also it will be understood that said safety-valve will be unseated by an excess of water in the cylinder should the relief-valve have failed to allow a complete exhaust thereof.
- the tension of the unseating-spring may be varied to offer any desired resistance to the pressure of steam within the cylinder in the seating of the relief-valve, and in the same Way the main or seating spring may be adjusted to have any desired ⁇ tension to resist pressure in the cylinder, and thus require any desired cylinder-pressure to unseat the same in opposition to its spring.
- I preferably extend the lower or outer end of the safety-valve stem into the opening of the main adj Listing-plug and provide the walls of the latter with stops 18,'which limit the unseating movement of the safety-valve to avoid straining the seating-spring, and also it will be seen thatl by the arrangement specified the adjusting plug of the unseatingspring may be adjusted to vary the tension of the unseating-spring Without dismounting the parts of the valve mechanism, for the reason that said adj usting-plug of the unseatingspring is accessible through the central opening in the adj usting-plug of the seating-spring.
- valve-casing a hollow safety-valve seated within said casin g, a valve-seating spring in operative relation with said valve, an annular spring-adjusting plug threadedin the outer end of the casing and adapted for adjustment to vary the tension of the spring', said safety-valve having an axial channel provided at an intermediate point with a relief-valve seat, a relief-valve housed entirely within the channel of the safety-valve, a removable stop-pin transversely spanning said channel in the path of the unseating movement of the relief-valve, an unseating-spring in operative relation with the relief-valve, and a hollow spring-adj usting plug fitted in the outer end of the safety'- valve channel in contact with said unseatingspring, and accessible through the opening of' the first-mentioned plug, substantially as specified.
- valve-casing a safety-valve seated therein and having a seating-spring, a centrallyopenadjusting-plug fitted in the casing, said safety-valve having a through longitudinal bore, a relief-valve seated wholly within the plane of the safetyvalve and adapted to close the bore therein, said relief-valve having an unseating-spring,
- an adjusting-plug for said unseatingspring mounted upon the safety-valve, and accessible, for adjustment, through the central opening of the iirst-named spring-adj usting plug, substantially as specied.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Description
No. 637,994; Patented Ndv. 2a, |899. A. KLAY.
RELIEF VALVE FOR ENGINE CYLINDERS.
(Application med nu. so, 1899.)
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UNITED STATES PATENT @Erica ANDREV KLAY, OF BLUFFTON, OHIO.
RELIEF-VALVE FOR ENGINE-CYLINDERS.
SPECIFICATION forming part of Letters Patent No. 637,994, dated November 28, 1899. Application led MIUMYBO, 1899. Serial No. 703|859. (No modela To @ZZ 'whom t may concer/2,: p
Be it known that I, ANDREW KLAY, a citizen of the United States, residing at Bluffton, in the county of Allen and State of Ohio, have invented a new and useful Relief-Valve for' piston to allow water of Vcondensation to be blown off and in connection therewith to pro vide a safety-valve adaptedf to be unseated by an excess of pressure in the cylinder to prevent injury to the operating parts.
Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.
In the drawings, Figure 1 is a central sectional view of a relief-valve mechanism constructed in accordance with my invention, the parts being shown in their normal relations. Fig. 2 is a similar view showing the parts in the positions which they occupy when subjected to an excess of pressure in the cylinder. Fig. 3 is a detail view of the safetyvalve detached. Fig. 4 is a similar view of the relief-valve detached.
Similar reference characters indicate corresponding parts in all the figures of the drawings.
1 designates a valve-casing provided with a terminal threaded nipple 2, adapted to be seated in the blow-oif opening ofa locomotive or other engine cylinder, said casing having an interior safety-valve seat 3, to which is tted a safety-valve 4t, normally held seated by an operating-spring 5, of which the tension may be varied by means of an adjustable plug 6, threaded in the lower end of the casing, said plug being annular or tubular in construction to provide a passage longitudinally through the casing for the relief of pressure in the cylinder when the safety-valve is unseated. The head of the safetyevalve is cut away or channeled, as shown at 7, whereby while the diameter of the head is such as to tit approximately in the bore of the casing, and thus guide the safety-valve in its movements toward and from its seat, fluid passing through the valveseat is adapted to pass the valve to reach the outlet 8 in the terminal plug. The safetyvalve is also provided with a reduced stem 9, andthe rear or lowerside of the valve-head forms a shoulder against which the seatingspring bears.
The safety-valve, with its stem, is of tubular construction, and the front or upper portion of the channel 10 therein is enlarged or counterbored and is constructed to form a relief-valve seat 11 to receive the relief-valve 12, whereby said relief-valve is housed within the safety-valve. Transverselyspanning the enlarged or counterbored portion of the channel in the safety-valve is a stop-pin 13 to limit the upward or unseating movement of the relief-valve, and said stop-pin is removably fitted in place by means of a threaded shoulder 14 thereof, whereby the removal of the relief valve for purposes of repair or cleansing is facilitated. The relief-valve is provided with a webbed guide-stein 15 to lit in the bore of the safety-valve stem, and thus allow a passage between its sides and said walls of the channel, and bearing against the lower end of the relief-valve stem is an unseating-spring 16, of which the tension may be varied by means of an adjusting-plug 17, threaded in the lower end of the bore of the safety-valve stem, said plug being tubular or of annular construction to communicate with the bore of the safety-valve stem, and thus provide for the escape from the bore of the safety-valve of water of condensation when the relief-valve is unseated.
In operation the relietvalve, which may be termed a low-pressure valve, is normally held unseated by the light unseatingspring employed in connection therewith, and hence during the return stroke of the piston in the cylinder to which the valve mechanism is applied or during the time that said piston is approaching the valve in question water of condensation in advance of the piston may escape through 'the relief-valve seat and thence through the channel of the safetyvalve stem and the opening in the main adjusting-plug (i. The tension of the reliefvalve spring, however, is so small that a slight increase of pressure in the cylinder, as by thev should there be an excess of pressure in the cylinder or a pressure liable to result in injury to the operating parts of the vmachine the safety-valve will be unseated to allow the escape of such excess, and also it will be understood that said safety-valve will be unseated by an excess of water in the cylinder should the relief-valve have failed to allow a complete exhaust thereof. Obviously the tension of the unseating-spring may be varied to offer any desired resistance to the pressure of steam within the cylinder in the seating of the relief-valve, and in the same Way the main or seating spring may be adjusted to have any desired `tension to resist pressure in the cylinder, and thus require any desired cylinder-pressure to unseat the same in opposition to its spring.
An advantage of the above-described construction resides in the fact that the reliefvalve is housed within the safety-valve, the same remaining therein in all of its positions, whereby the entire mechanism occupies the minimum space and accomplishes the desired objects without necessitating any considerable projection beyond the surface of the cylinder to which it may be applied, and in addition to this compactness of construction it will be seen that by the removal of the main plug at the lower or outer end of the casing the safety-valve and the contained reliefvalve may be removed from the casing when necessary fo'r repair or cleaning. It will be understood that a valve mechanism constructed as above described should be arranged at each end of the cylinder in a double-acting engine.
I preferably extend the lower or outer end of the safety-valve stem into the opening of the main adj Listing-plug and provide the walls of the latter with stops 18,'which limit the unseating movement of the safety-valve to avoid straining the seating-spring, and also it will be seen thatl by the arrangement specified the adjusting plug of the unseatingspring may be adjusted to vary the tension of the unseating-spring Without dismounting the parts of the valve mechanism, for the reason that said adj usting-plug of the unseatingspring is accessible through the central opening in the adj usting-plug of the seating-spring.
It will be understood that in practice various changes in the form, proportion', size, and
minor details of construction within the scope of the appended claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.
Having described my invention, what I claim isl. The combination of a safety-valve having a through longitudinal bore, means for yieldingly holding the said valve seated, a relief-valve housed within and carried by said safety-valve, an unseating-spring therefor, and means carried by the safety-valve for adjusting the tension of said spring, substantially as specified.
2. The combination of a safety-valve having a through longitudinal bore, means for yieldingly holding the said valve seated, a relief-valve housed entirely within the bore of, the safety-valve, an unseating device for the relief-valve and a hollow ad j Listing-plug for said unseating device, substantially as specified.
3. The combination of a valve-casing, a hollow safety-valve seated within said casin g, a valve-seating spring in operative relation with said valve, an annular spring-adjusting plug threadedin the outer end of the casing and adapted for adjustment to vary the tension of the spring', said safety-valve having an axial channel provided at an intermediate point with a relief-valve seat, a relief-valve housed entirely within the channel of the safety-valve, a removable stop-pin transversely spanning said channel in the path of the unseating movement of the relief-valve, an unseating-spring in operative relation with the relief-valve, and a hollow spring-adj usting plug fitted in the outer end of the safety'- valve channel in contact with said unseatingspring, and accessible through the opening of' the first-mentioned plug, substantially as specified.
4:. The combination of a valve-casing, a safety-valve seated therein and having a seating-spring, a centrallyopenadjusting-plug fitted in the casing, said safety-valve having a through longitudinal bore, a relief-valve seated wholly within the plane of the safetyvalve and adapted to close the bore therein, said relief-valve having an unseating-spring,
and an adjusting-plug for said unseatingspring, mounted upon the safety-valve, and accessible, for adjustment, through the central opening of the iirst-named spring-adj usting plug, substantially as specied.
-In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.
ANDREW KLAY.
Witnesses:
JOHN ALTHAUS, SAMUEL AMsTU'rz.
IOO
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1899703859 US637994A (en) | 1899-01-30 | 1899-01-30 | Relief-valve for engine-cylinders. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1899703859 US637994A (en) | 1899-01-30 | 1899-01-30 | Relief-valve for engine-cylinders. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US637994A true US637994A (en) | 1899-11-28 |
Family
ID=2706583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1899703859 Expired - Lifetime US637994A (en) | 1899-01-30 | 1899-01-30 | Relief-valve for engine-cylinders. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US637994A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2807202A (en) * | 1955-08-18 | 1957-09-24 | Allen Sherman Hoff Co | Snubber vent for a storage silo |
| US2885152A (en) * | 1955-01-27 | 1959-05-05 | Standard Thomson Corp | Fluid control valve |
| US2973779A (en) * | 1956-12-14 | 1961-03-07 | Corken S Inc | Vapor by-pass valve |
| US5582202A (en) * | 1994-12-21 | 1996-12-10 | Bridge Products, Inc. | Air conditioner system charge/relief valve |
| US20040092890A1 (en) * | 2001-05-10 | 2004-05-13 | Ash Stephen R. | Catheter lock solution including a photo-oxidant |
| US20040177888A1 (en) * | 1997-03-12 | 2004-09-16 | Autospan Limited | Valve arrangement and traffic calming device incorporating such an arrangement |
| AU2005205762B2 (en) * | 2000-02-25 | 2007-11-29 | Autospan Limited | Valve arrangement and traffic calming device incorporating such an arrangement |
| US20110226356A1 (en) * | 2008-12-02 | 2011-09-22 | Kosei Yamaguchi | Check valve |
-
1899
- 1899-01-30 US US1899703859 patent/US637994A/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2885152A (en) * | 1955-01-27 | 1959-05-05 | Standard Thomson Corp | Fluid control valve |
| US2807202A (en) * | 1955-08-18 | 1957-09-24 | Allen Sherman Hoff Co | Snubber vent for a storage silo |
| US2973779A (en) * | 1956-12-14 | 1961-03-07 | Corken S Inc | Vapor by-pass valve |
| US5582202A (en) * | 1994-12-21 | 1996-12-10 | Bridge Products, Inc. | Air conditioner system charge/relief valve |
| US20040177888A1 (en) * | 1997-03-12 | 2004-09-16 | Autospan Limited | Valve arrangement and traffic calming device incorporating such an arrangement |
| US7004193B2 (en) * | 1997-03-12 | 2006-02-28 | Autospan Limited | Valve arrangement and traffic calming device incorporating such an arrangement |
| AU2005205762B2 (en) * | 2000-02-25 | 2007-11-29 | Autospan Limited | Valve arrangement and traffic calming device incorporating such an arrangement |
| US20040092890A1 (en) * | 2001-05-10 | 2004-05-13 | Ash Stephen R. | Catheter lock solution including a photo-oxidant |
| US20110226356A1 (en) * | 2008-12-02 | 2011-09-22 | Kosei Yamaguchi | Check valve |
| US8561638B2 (en) * | 2008-12-02 | 2013-10-22 | Piolax Inc. | Check valve |
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