GB805109A - Improvements in or relating to valve-actuating mechanisms of reciprocating internal combustion engines - Google Patents

Improvements in or relating to valve-actuating mechanisms of reciprocating internal combustion engines

Info

Publication number
GB805109A
GB805109A GB1291556A GB1291556A GB805109A GB 805109 A GB805109 A GB 805109A GB 1291556 A GB1291556 A GB 1291556A GB 1291556 A GB1291556 A GB 1291556A GB 805109 A GB805109 A GB 805109A
Authority
GB
United Kingdom
Prior art keywords
pedestal
valve
relating
internal combustion
combustion 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
Application number
GB1291556A
Inventor
Shadwell Harry Grylls
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB1291556A priority Critical patent/GB805109A/en
Publication of GB805109A publication Critical patent/GB805109A/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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • F01L1/183—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft of the boat type
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L2001/188—Fulcrums at upper surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

805,109. Valve gear. ROLLS-ROYCE, Ltd. April 18, 1957 [April 26, 1956], No. 12915/56. Class 7(6) A valve rocker 14, Fig. 1, is supported by a piston and cylinder device 18, 17 mounted at the top of a pedestal 15 and fed with liquid under pressure through a duct 20 extending from the base of the pedestal, the rocker 14 and its supporting means 17, 18 having spherically shaped co-operating surfaces 14b, 18a. In Fig. 1 the cylinder is fixed to the pedestal 15 and the pressure liquid, which may be lubricating oil, is fed past a non-return valve 22 situated in the pedestal which is screwed into the cylinder head 16. In a modification, Fig. 3, the rockers 14 of a pair of adjacent valves are supported by cylinders 31 sliding in bores formed in the head of a pedestal 30 and co-operating with pistons 32 held against abutment members 38 by spring 33, the pressure liquid being supplied through bores 41, 43 to the interior of the pistons and thence through non-return valves 47 to the cylinders 31. The abutments 38 are carried by a member 36 secured to the top of the pedestal.
GB1291556A 1956-04-26 1956-04-26 Improvements in or relating to valve-actuating mechanisms of reciprocating internal combustion engines Expired GB805109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1291556A GB805109A (en) 1956-04-26 1956-04-26 Improvements in or relating to valve-actuating mechanisms of reciprocating internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1291556A GB805109A (en) 1956-04-26 1956-04-26 Improvements in or relating to valve-actuating mechanisms of reciprocating internal combustion engines

Publications (1)

Publication Number Publication Date
GB805109A true GB805109A (en) 1958-11-26

Family

ID=10013465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1291556A Expired GB805109A (en) 1956-04-26 1956-04-26 Improvements in or relating to valve-actuating mechanisms of reciprocating internal combustion engines

Country Status (1)

Country Link
GB (1) GB805109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286702A (en) * 1964-11-04 1966-11-22 Johnson Products Inc Tappet assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286702A (en) * 1964-11-04 1966-11-22 Johnson Products Inc Tappet assembly

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