GB534655A - Improvements in or relating to valve tappet mechanisms and like vibratory mechanicallinkages - Google Patents

Improvements in or relating to valve tappet mechanisms and like vibratory mechanicallinkages

Info

Publication number
GB534655A
GB534655A GB2295739A GB2295739A GB534655A GB 534655 A GB534655 A GB 534655A GB 2295739 A GB2295739 A GB 2295739A GB 2295739 A GB2295739 A GB 2295739A GB 534655 A GB534655 A GB 534655A
Authority
GB
United Kingdom
Prior art keywords
valve
clearance
parts
wedge
weight
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
GB2295739A
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
Thompson Products 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 Thompson Products Inc filed Critical Thompson Products Inc
Priority to GB2295739A priority Critical patent/GB534655A/en
Publication of GB534655A publication Critical patent/GB534655A/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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically

Landscapes

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

Abstract

534,655. Valve tappets, internal-combustion engines. TRIGGS W. W. (Thompson Products Inc.). Aug. 9, 1939, No. 22957. [Class 80 (iii)] [Also in Group XXVII] A valve tappet or like vibratory y mechanical linkage, having driving and driven links BB, 22, with a clearance 20 therebetween which is closed upon valve actuation, is provided with an inertia member 32 which acts by impact when the links return to their initial positions to increase the said clearance 20, means also being provided to thereafter eliminate the said aditional clearance. As shown, a wedge 26 pressed in place by a spring DD is positioned between a valve rod 22 and tappet BB, a clearance 20 being maintained between the parts. A weight 32 is pivoted at 28 to the sleeve 16 carrying the links. In operation, as the valve carried by the rod 22 reaches its fully open position the weight 32 will swing to the dotted position. As the linkage moves towards the valve closing position the weight 32 will swing downwardly, strike against the wedge 26 and displace it to temporarily increase the clearance between the members 22, BB. Immediately afterwards the spring DD moves the wedge 26 in the reverse direction to adjust the parts to the normal clearance 20. In a modification the valve tappet comprises two parts screwed together and spring biassed to maintain the correct clearance and the inertia member is guided by helical ribs on one of the parts and acts by impact at the end of the valve closing stroke to screw the two parts one into the other. In another modification the valve rocker arm of an internal-combustion engine is mounted on an eccentric around which an annular inertia member is carried.
GB2295739A 1939-08-09 1939-08-09 Improvements in or relating to valve tappet mechanisms and like vibratory mechanicallinkages Expired GB534655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2295739A GB534655A (en) 1939-08-09 1939-08-09 Improvements in or relating to valve tappet mechanisms and like vibratory mechanicallinkages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2295739A GB534655A (en) 1939-08-09 1939-08-09 Improvements in or relating to valve tappet mechanisms and like vibratory mechanicallinkages

Publications (1)

Publication Number Publication Date
GB534655A true GB534655A (en) 1941-03-13

Family

ID=10187800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2295739A Expired GB534655A (en) 1939-08-09 1939-08-09 Improvements in or relating to valve tappet mechanisms and like vibratory mechanicallinkages

Country Status (1)

Country Link
GB (1) GB534655A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331901A2 (en) * 1988-02-05 1989-09-13 Dieter Voigt Valve drive for a lift valve
GB2231113A (en) * 1989-04-19 1990-11-07 Mico Ind Automation Arrangement for securing a roller pin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331901A2 (en) * 1988-02-05 1989-09-13 Dieter Voigt Valve drive for a lift valve
EP0331901A3 (en) * 1988-02-05 1989-10-18 Dieter Voigt Valve drive for a lift valve
GB2231113A (en) * 1989-04-19 1990-11-07 Mico Ind Automation Arrangement for securing a roller pin
GB2231113B (en) * 1989-04-19 1993-06-16 Mico Ind Automation Arrangement for securing a roller pin

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