GB458435A - Reversing gear for steam engines with poppet valve gear, especially for locomotive and marine steam engines - Google Patents

Reversing gear for steam engines with poppet valve gear, especially for locomotive and marine steam engines

Info

Publication number
GB458435A
GB458435A GB17761/35A GB1776135A GB458435A GB 458435 A GB458435 A GB 458435A GB 17761/35 A GB17761/35 A GB 17761/35A GB 1776135 A GB1776135 A GB 1776135A GB 458435 A GB458435 A GB 458435A
Authority
GB
United Kingdom
Prior art keywords
valves
links
eccentric
operated
engine
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
GB17761/35A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB458435A publication Critical patent/GB458435A/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
    • F01L31/00—Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L15/00 - F01L29/00
    • F01L31/08—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear
    • F01L31/16—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear the drive being effected by specific means other than eccentric, e.g. cams; Valve adjustment in connection with such drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

458,435. Steam engine valves and valve-gear. LENTZ, H., 74, Kurf³rstendamm, Halensee, Berlin. June 20, 1935, No. 17761. Convention date, Dec. 19, 1934. [Classes 122 (i) and 122 (ii)] A multiple-cylinder locomotive &c. engine is provided with separate inlet and exhaust poppet valves for each end of the cylinders which are independently operated from different points on an oscillating lever, or from eccentrics having different throws, and are simultaneously and independently adjusted. The inlet and exhaust valves 13, 15 are operated by transverse shafts 10, 11 provided with cranks which are connected by links 8a, 9a to different points 8, 9 of an oscillated lever 6 which receives its motion from a crank, and which is adjusted from the driver's stand by a bell-crank 1, 2. The arm 2 carries sliding blocks 4 engaging guides 3. Blocks are interconnected by a pin 5 upon which the lever 6 is mounted. The compression becomes later with increase of charge. The shafts 10, 11 operate the valves through cams 12, 14. The links 8a, 9a may be upon the same side or upon opposite sides of the engine. In the latter case, pins 5 are provided on a tranverse shaft and control levers of different lengths are connected to the links 8a, 9a. Constructions are described wherein the cranks of the links 10, 11 are on the same side of the engine, and wherein the valves are arranged coaxially and are operated by cams which contact intermediate levers acting on discs on the ends of the valve spindles after the manner of rolling levers. The links 8a, 9a may be operated by a compound Lentz eccentric which consists of a member 18 with two eccentric races 23, 22 provided with a slot which is transversely shiftable between flanges 30 in a rectangular part by screw mechanism by a shaft 21. The throw of the exhaust eccentric is less than that of the admission eccentric. The eccentrics may be independent and adjusted by teeth of different pitch on the same rods. The admission and exhaust valves may be separately adjusted.
GB17761/35A 1934-12-19 1935-06-20 Reversing gear for steam engines with poppet valve gear, especially for locomotive and marine steam engines Expired GB458435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE458435X 1934-12-19

Publications (1)

Publication Number Publication Date
GB458435A true GB458435A (en) 1936-12-21

Family

ID=6539439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17761/35A Expired GB458435A (en) 1934-12-19 1935-06-20 Reversing gear for steam engines with poppet valve gear, especially for locomotive and marine steam engines

Country Status (1)

Country Link
GB (1) GB458435A (en)

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