US121677A - Improvement in rotary valves - Google Patents

Improvement in rotary valves Download PDF

Info

Publication number
US121677A
US121677A US121677DA US121677A US 121677 A US121677 A US 121677A US 121677D A US121677D A US 121677DA US 121677 A US121677 A US 121677A
Authority
US
United States
Prior art keywords
valve
steam
improvement
rotary valves
chest
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
Application number
Publication date
Application granted granted Critical
Publication of US121677A publication Critical patent/US121677A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B62D5/083—Rotary valves

Definitions

  • the drawing represents a vertical transverse section of our improved rock-valve in a cylindrical steam-chest.
  • This invention relates to a new form of valve within a steam-chest, and has for its object to reduce friction and simplify the operation of the valve.
  • the invention consists in the use of an oscillating, cylindrical, or slightlyconical valve, containing cross-slots for conveying the steam from the top of a chest to the ports, and a cavity for the exhaust. In this manner a simple valve is produced, and the steam-chest, as such, actually dispensed with, the steam passing from the pipe directly to and through the valve. This, it is evident, is the simplest means of removing the steam-pressure from the top of the valvethat is, having no steam upon it.
  • A represents a steam-cylinder of suitable kind, having the steam-ports a and b that lead to a cylindrical or somewhat conical steam-chest or receptacle, 0, for the valve B.
  • This valve is of cylindrical or slightly-conical shape, and fits the chamber 0 so as to fill it entirely.
  • the chamber 0 connects at its crown with the steam-pipe d.
  • the valve is slotted at e and f, the slots extending clear across, as shown. They serve, respectively, to supply the ports a b alternately with steam from the pipe (I.
  • a cavity, g, in the lower side of the valve connects the ports alternately with the exhaust-pipe h.
  • valve By a suitable link-motion the valve is rocked in order to open the ports in proper succession. This operation will be easily understood and need not be further described.
  • the cylinder 0 having the steamchest cast therewith, and provided with steam passages d a b h, in combination with valve B having ports efg, all constructed and arranged substantially as and for the purpose specified.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Description

0Q SNOWHILL & J n. sowu.v
improvement in R-btary Valves.
NO. 121,677; Patgnted Dec-5,187L.
,. mummy:
I MVFWL/ a UNITED STATES PATENT OFFICE.
DANIEL SNOWHILL AND JOHN D. BOWN, OF SPOTTSWOOD, NEW JERSEY.
IMPROVEMENT lN ROTARY VALVES.
Specification forming part of Letters Patent No. 121,677, dated December 5, 1871.
To all whom it may concern:
Be it known that we, DANIEL SNowHILL and JOHN D. BoWN, of Spottswood, in the county of Middlesex and State of New Jersey, have invented a new and Improved Rock- Valve for Steam- Uhests; and we 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 a part of this specification.
The drawing represents a vertical transverse section of our improved rock-valve in a cylindrical steam-chest.
This invention relates to a new form of valve within a steam-chest, and has for its object to reduce friction and simplify the operation of the valve. The invention consists in the use of an oscillating, cylindrical, or slightlyconical valve, containing cross-slots for conveying the steam from the top of a chest to the ports, and a cavity for the exhaust. In this manner a simple valve is produced, and the steam-chest, as such, actually dispensed with, the steam passing from the pipe directly to and through the valve. This, it is evident, is the simplest means of removing the steam-pressure from the top of the valvethat is, having no steam upon it.
In the drawing, A represents a steam-cylinder of suitable kind, having the steam-ports a and b that lead to a cylindrical or somewhat conical steam-chest or receptacle, 0, for the valve B.
This valve is of cylindrical or slightly-conical shape, and fits the chamber 0 so as to fill it entirely. The chamber 0 connects at its crown with the steam-pipe d. The valve is slotted at e and f, the slots extending clear across, as shown. They serve, respectively, to supply the ports a b alternately with steam from the pipe (I. A cavity, g, in the lower side of the valve connects the ports alternately with the exhaust-pipe h.
By a suitable link-motion the valve is rocked in order to open the ports in proper succession. This operation will be easily understood and need not be further described.
We are aware that the Davis valve resembles ours in appearance to some extent; but he has and requires an extra steam-chest, which we dispense with; being hollow at the center it has the same pressure as a slide-valve, which is an objection removed by ours; and our valve and chest being in one piece are more easily made and more durable.
Having described our invention, what we claim as new, and desire to secure by Letters Patent, 1s
The cylinder 0 having the steamchest cast therewith, and provided with steam passages d a b h, in combination with valve B having ports efg, all constructed and arranged substantially as and for the purpose specified.
DANIEL SNOVVHILL. JOHN D. B()\VN.
Witnesses:
J OHN L. APPLEBY, MERRELL MUNDY. (152)
US121677D Improvement in rotary valves Expired - Lifetime US121677A (en)

Publications (1)

Publication Number Publication Date
US121677A true US121677A (en) 1871-12-05

Family

ID=2191118

Family Applications (1)

Application Number Title Priority Date Filing Date
US121677D Expired - Lifetime US121677A (en) Improvement in rotary valves

Country Status (1)

Country Link
US (1) US121677A (en)

Similar Documents

Publication Publication Date Title
US121677A (en) Improvement in rotary valves
US114078A (en) Improvement in valves and steam-chests for engines
US109167A (en) Improvement in steam-engines
US182183A (en) Improvement in steam-engines
US112002A (en) Improvement in slide-valves
US166758A (en) Improvement in rotary balanced valves
US87448A (en) Improvement in steam-engine valve-gearing
US95868A (en) Improvement in steam-engine slide-valves
US669284A (en) Reciprocating valve.
US389328A (en) Rotary engine
US337184A (en) Steam-engine
US129726A (en) Improvement in slide-valves
US104746A (en) G e or gel e g k e n by
US195005A (en) Improvement in balanced slide-valves
US498635A (en) Steam-engine valve
US121355A (en) Improvement in oscillating-engines
US53373A (en) Improvement in oscillating pumps
US200242A (en) Improvement in balanced slide-valves
US121018A (en) Improvement in rotary steam-valves
US105986A (en) Improvement in valves for steam-engines
US344998A (en) Wilbur l
US485818A (en) Balanced slide-valve
US200728A (en) Improvement in rotary valves
US353457A (en) Duplex steam-valve
US105129A (en) Thomas rodda