GB691631A - Improved poppet valve mechanism for internal combustion engines - Google Patents

Improved poppet valve mechanism for internal combustion engines

Info

Publication number
GB691631A
GB691631A GB3163/51A GB316351A GB691631A GB 691631 A GB691631 A GB 691631A GB 3163/51 A GB3163/51 A GB 3163/51A GB 316351 A GB316351 A GB 316351A GB 691631 A GB691631 A GB 691631A
Authority
GB
United Kingdom
Prior art keywords
washer
valve
spring
oil
film
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
GB3163/51A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB691631A publication Critical patent/GB691631A/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
    • F01L1/14—Tappets; Push rods
    • F01L1/16—Silencing impact; Reducing wear

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

691,631. Valves. GENERAL MOTORS CORPORATION. Feb. 9. 1951 [Feb. 23. 1950], No. 3163/51. Classes 7 (ii) and 7 (vi) [Also in Group XXIX] A coil spring 13 for a poppet valve 5, which rotates whilst open in response to the twist of the spring, is seated at one end on a Belleville or like washer 25 which on compression of the spring 13 is flattened against a surface 26, a film of oil - momentarily trapped thereunder allowing it to rotate, which momentarily halts rotation of the valve 5. As shown the washer 25 is centred on an annular surface 36 and the surface 26 is flat and formed on the cylinder head. The upper end of the spring 13 engages an abutment 12 fixed to the valve stem by split cotters 10. The stamped metal valve rocker 11 has a recess 15 pivoting on the part spherical head 18 of a nut 17 having a lubricating oil passage 30 therethrough leading to the bearing surface 18, the excess oil flowing through aperture 16 on to the surface 26. The valve 5 is rotated by the spring twist during the first part of its opening stroke until the washer 25 is flattened and floats on its film of oil, whereby the washer 25 rotates and the valve rotation is halted momentarily until the oil film is squeezed from underneath the washer 25. The valve 5 then rotates during the remaining part of its opening stroke and during its entire closing stroke. The washer 25 may be interposed between the upper end of spring 13 and the abutment 12.
GB3163/51A 1950-02-23 1951-02-09 Improved poppet valve mechanism for internal combustion engines Expired GB691631A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US691631XA 1950-02-23 1950-02-23

Publications (1)

Publication Number Publication Date
GB691631A true GB691631A (en) 1953-05-20

Family

ID=22087149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3163/51A Expired GB691631A (en) 1950-02-23 1951-02-09 Improved poppet valve mechanism for internal combustion engines

Country Status (1)

Country Link
GB (1) GB691631A (en)

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