GB710744A - Improvements in or relating to valves particularly steam distribution valves - Google Patents

Improvements in or relating to valves particularly steam distribution valves

Info

Publication number
GB710744A
GB710744A GB1446052A GB1446052A GB710744A GB 710744 A GB710744 A GB 710744A GB 1446052 A GB1446052 A GB 1446052A GB 1446052 A GB1446052 A GB 1446052A GB 710744 A GB710744 A GB 710744A
Authority
GB
United Kingdom
Prior art keywords
valve
ports
exhaust
port
ring
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
Application number
GB1446052A
Inventor
Charles Clinton Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spence Engineering Co Inc
Original Assignee
Spence Engineering Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Spence Engineering Co Inc filed Critical Spence Engineering Co Inc
Priority to GB1446052A priority Critical patent/GB710744A/en
Publication of GB710744A publication Critical patent/GB710744A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L15/00—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00
    • F01L15/10—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00 with main slide valve and auxiliary valve dragged thereby

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Check Valves (AREA)

Abstract

710,744. Engine distributing valves. SPENCE ENGINEERING CO., Inc. June 9, 1952, No. 14460/52. Class 122(2) The exhaust period of a steam engine having an inside steam pistou distributing valve 5 is prolonged by means of a radial port or ports located in the valve packing distance ring 16 between the valve inlet and exhaust edges and controlled by a sleeve valve 22 axially slidable with respect to the piston valve, the sleeve valve being resiliently urged to open the ports and acted upon by the cylinder compression to close the ports. The distance ring 16 surrounds the valve spider 15 and carries at each of its ends packing rings 17, 18 respectively controlling steam inlet and exhaust through the main cylinder steam port 9. The distance ring 16 and spider 15 have a plurality of aligned radial ports 19, 2Q respectively controlled by the sleeve valve 22 which is slidable in ari annular groove in the ring 16 and urged in a direction to open the ports by a plurality of springs 25. The end of the sleeve valve adjacent to the inlet packing ring 17 communicates with the outside of the distance ring through a series of radial ports 23. After main exhaust has been cut off by the exhaust packing ring 18 when the piston valve is moving to the right, exhaust still occurs through the ports 19, 20 and continues until port 19 passes the main cylinder port 9. Compression then begins in the main cylinder and just prior to admission is sufficient to overcome the springs 25 to thereby move the sleeve valve 22 and close the ports 19, 20; the valve 22 being maintained in the closed position during the working stroke by the steam pressure in the cylinder. When the port 9 is-again opened to exhaust by the exhaust packing ring clearing the edge of port 9 the pressure behind the sleeve valve is relieved and the valve moved by the springs 25 to open the ports 19, 20. For a double acting engine the other end of the piston valve is similarly arranged.
GB1446052A 1952-06-09 1952-06-09 Improvements in or relating to valves particularly steam distribution valves Expired GB710744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1446052A GB710744A (en) 1952-06-09 1952-06-09 Improvements in or relating to valves particularly steam distribution valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1446052A GB710744A (en) 1952-06-09 1952-06-09 Improvements in or relating to valves particularly steam distribution valves

Publications (1)

Publication Number Publication Date
GB710744A true GB710744A (en) 1954-06-16

Family

ID=10041591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1446052A Expired GB710744A (en) 1952-06-09 1952-06-09 Improvements in or relating to valves particularly steam distribution valves

Country Status (1)

Country Link
GB (1) GB710744A (en)

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