US40445A - Improvement in valves for steam-engines - Google Patents
Improvement in valves for steam-engines Download PDFInfo
- Publication number
- US40445A US40445A US40445DA US40445A US 40445 A US40445 A US 40445A US 40445D A US40445D A US 40445DA US 40445 A US40445 A US 40445A
- Authority
- US
- United States
- Prior art keywords
- steam
- valve
- valves
- improvement
- engines
- 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
- 230000000875 corresponding Effects 0.000 description 4
- 210000000038 chest Anatomy 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
-
- 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
- Y10T137/86582—Pilot-actuated
- Y10T137/86606—Common to plural valve motor chambers
Definitions
- rIhis invention relates to auimprovement in that class of steam-valves in which the motion of the valve is partially effected by the action ofthe steam, so that the ports are wide open when the piston has arrived at either end of the cylinder, and the full force of the steam acts on the piston throughout its whole stroke.
- FIG. B represents an oscillating hollow disk, the lower part of which, at A, is made into the form of a convex slide-valve, which moves in a corresponding concave seat within the stean1- chest O, as shown in Fig. 2.
- the disk B is bored out to tit to the round body of the valve D,which is rigidly attached to the spindle Ef, and to which an oscillating motion is imparted by cams or other suitable means from the piston-rod.
- the valve D is provided with an abutment or wing, a, which ts into a segmental cavity, b, in the disk B, and said cavity communicates with the interior of the steam-chest through the port c.
- the valve D on being oscillated in the cavity of the disk B, alternately opens and closes the exhaust-channels d d', which extend on either side of the abutment a from the center of the disk to the cavity in the slide-valve A, as clearly shown in Fig. 2 of the drawings.
- the slidevalve is not rigidly connected with the disk, the steam from the cavity b may be made to exhaust through channels passing out parallel to the spindle E through the sides of the steamchest.
- valve-chest communicates with the interior of the steam-cylinder through ports F FQ and the steam from the cylinder exhausts throughthe port E.
- the port F is thereby thrown wide open and the port F broughtin communication with the exhaustport E, thus giving a full head of steam to the piston at the beginning of its re-v At the proper mol
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sliding Valves (AREA)
Description
UNITED vSTATES JOSEPH W. HOPKINS, OF BROOKLYN, NEW YORK, ASSIGNOR TO HIMSELF PATENT OFFICE.
AND JAMES CLAYTON, OF SAME PLACE.
IMPROVEMENT IN VALVES FOR STEAM-ENGINES.
Specication forming part of Letters Patent N0 40,1145, dated October` 27, 1863.
To all whom it may concern:
Be it known that I, JOSEPH W. HOPKINS, of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Steam-Valve; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had tothe accompanying drawings, forming apart of this specitication, in which-` Figure l represents a plan or top view of my invention. Fig. 2 is a longitudinal vertical section ofthe same, the linear x, Fig. l, indicating the plan of section.
Similar letters of reference indicate corresponding parts in both iigures.
rIhis invention relates to auimprovement in that class of steam-valves in which the motion of the valve is partially effected by the action ofthe steam, so that the ports are wide open when the piston has arrived at either end of the cylinder, and the full force of the steam acts on the piston throughout its whole stroke. Y
My improvement will be readily understood from the drawings and the following explanation.
B represents an oscillating hollow disk, the lower part of which, at A, is made into the form of a convex slide-valve, which moves in a corresponding concave seat within the stean1- chest O, as shown in Fig. 2. The disk B is bored out to tit to the round body of the valve D,which is rigidly attached to the spindle Ef, and to which an oscillating motion is imparted by cams or other suitable means from the piston-rod.
The valve D is provided with an abutment or wing, a, which ts into a segmental cavity, b, in the disk B, and said cavity communicates with the interior of the steam-chest through the port c. The valve D, on being oscillated in the cavity of the disk B, alternately opens and closes the exhaust-channels d d', which extend on either side of the abutment a from the center of the disk to the cavity in the slide-valve A, as clearly shown in Fig. 2 of the drawings.
rIhe motion of the slide-valve is limited by stops e e on either end of its seat. If the slidevalve is not rigidly connected with the disk, the steam from the cavity b may be made to exhaust through channels passing out parallel to the spindle E through the sides of the steamchest.
The valve-chest communicates with the interior of the steam-cylinder through ports F FQ and the steam from the cylinder exhausts throughthe port E.
The operation is as follows: In the position shown in Fig. 2 the cylinder takes steam through the port F, and the piston moves in the direction of arrow l. ment, and before the piston has completed its stroke, the valve D is turned in the direction of arrow 2, against the steam which lls the cavity b, having free access to the same through the port c. As soon as the abutment b passes the port c, the channell d is opened, allowing the steam before the abutment to escape, and the space behind the abutment fills with steam and causes the disk to rotate suddenly in thedirection of arrow 3.
The port F is thereby thrown wide open and the port F broughtin communication with the exhaustport E, thus giving a full head of steam to the piston at the beginning of its re-v At the proper mol
Publications (1)
Publication Number | Publication Date |
---|---|
US40445A true US40445A (en) | 1863-10-27 |
Family
ID=2110015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US40445D Expired - Lifetime US40445A (en) | Improvement in valves for steam-engines |
Country Status (1)
Country | Link |
---|---|
US (1) | US40445A (en) |
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0
- US US40445D patent/US40445A/en not_active Expired - Lifetime
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