US3335709A - Valve train assembly foe overhead valve engine - Google Patents

Valve train assembly foe overhead valve engine Download PDF

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US3335709A
US3335709A US3335709DA US3335709A US 3335709 A US3335709 A US 3335709A US 3335709D A US3335709D A US 3335709DA US 3335709 A US3335709 A US 3335709A
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valve
train assembly
overhead
engine
foe
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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers

Definitions

  • Another object of this invention is to provide a valve train assembly for overhead valve engine which features a swivel bowl arrangement for keeping the rocker arm magnetized thereto during the entire operation of closing and opening the valve train assembly for overhead valve engine which may be readily and inexpensively applied to the existing conventional internal combustion engines by any mechanic without the necessity of rebuilding various parts of the valve train assembly, such as, push rod, valve stem, etc.
  • Still another object of this invention is to provide a valve train assembly for overhead valve engine which is inexpensive to manufacture, can be moderately priced, is of rugged construction, safe in operation, and provides maximum utility to its user.
  • FIGURE 1 is a top plan view of this invention.
  • FIGURE 2 is a cross-sectional view taken along the lines 2--2 of FIGURE 1.
  • FIGURE 3 is a plain view of a modified tension spring.
  • FIGURE 4 is a side elevation of FIGURE 3.
  • FIGURE 5 is a cross-sectional view shown in elevation of a modified swivel bowl.
  • a valve train assembly for overhead valve engine is provided with a generally conventional rocker arm 11 which suitably cooperates with a push rod 12 extending from a lifter member of a cam (not shown).
  • Rocker arm 11 is provided with an inwardly extending, semi-spherical recess 13 and a circular opening 14 which is positioned within an outwardly extending portion 14 prime.
  • a semi-spherical swivel bowl 15 is seated within portion 14 prime and is adapted to admit a valve rod 17 within its recess 15 prime.
  • Rod 17 is secured within said bowl 15 by means of an adjusting nut 16.
  • a tension spring 21 (see FIGURES 3 and 4) cooperates between said recess 13 and a portion of the 3,335,709 Patented Aug. 15, 1967 valve rod 17 which is disposed between bowl 15 and nut 16.
  • a valve stem 18 is provided with a circular stop member 20 which abuts the coil spring 19.
  • the semi-spherical swivel bowl 15 is magnetized so as to keep the rocker arm 11 during the entire operation of closing and opening of the valve. Furthermore, the tension spring 21, which is held securely between the adjusting nut 16 and the swivel bowl 15 presses against the push rod 12 which, in turn, presses against a lifter (not shown). This arrangement eliminates the looseness, between the swivel bowl 15 and the rocker arm, and prevents bending of the push rod.
  • the semi-spherical bowl 15 is provided with a center core consisting of soft iron substance 16 prime which is capable of maximum magnetizing efiect.
  • a valve train assembly of an overhead valve engine comprising, in combination, a rocker arm having an opening with its arcuately concaved bottom portion, a stud positioned within said opening, a semi-spherical bowl mounted on one end of said stud and positioned Within said bottom portion, a tension spring encircling said stud and being positioned on said bowl, an adjustable nut on the other end portion of said stud for securing said spring on said bowl, a valve stem arrangement for supporting said rocker arm, said rocker arm being provided with an arcuately convexed portion, a push rod of a lifter abutting said convexed portion, the material of said convexed portion encircled by the other end of said tension spring capable of pushing against said push rod which, in turn, be adapted to activate said lifter, said semi-spherical bowl being provided with an opening for admitting said stud therein, the center portion of said bowl being provided with a semi-spherical soft iron core for maximum magnetizing capacity of said

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

Description

J. MIKUCKI VALVE TRAIN ASSEMBLY FOR OVERHEAD VALVE ENGINE Filed June 8, I 1966 I IN V EN TOR. 'John M iKl/CKI' United States Patent 3,335,709 VALVE TRAIN ASSEMBLY FOR OVERHEAD VALVE ENGINE John Mikuclri, 4319 W. Schubert Ave., Chicago, Ill. 60639 Filed June 8, 1966, Ser. No. 556,166 1 Claim. (Cl. 123-90) This invention relates to overhead valve engines, and more particularly a valve train assembly for overhead valve engine.
It is therefore the main purpose of this invention to provide a valve train assembly for overhead valve engine capable of increasing the engine horsepower and reducing the fuel consumption thereof.
Another object of this invention is to provide a valve train assembly for overhead valve engine which features a swivel bowl arrangement for keeping the rocker arm magnetized thereto during the entire operation of closing and opening the valve train assembly for overhead valve engine which may be readily and inexpensively applied to the existing conventional internal combustion engines by any mechanic without the necessity of rebuilding various parts of the valve train assembly, such as, push rod, valve stem, etc.
Still another object of this invention is to provide a valve train assembly for overhead valve engine which is inexpensive to manufacture, can be moderately priced, is of rugged construction, safe in operation, and provides maximum utility to its user.
Other objects and advantages of this invention will become apparent from a consideration of the following detailed description taken in connection with the accompanying drawing wherein a satisfactory embodiment of the invention is shown. However, it is to be understood that the invention is not limited to the details disclosed but includes all such variations and modifications as fall within the spirit of the invention and the scope of the appended claims.
In the drawing:
FIGURE 1 is a top plan view of this invention.
FIGURE 2 is a cross-sectional view taken along the lines 2--2 of FIGURE 1.
FIGURE 3 is a plain view of a modified tension spring.
FIGURE 4 is a side elevation of FIGURE 3.
FIGURE 5 is a cross-sectional view shown in elevation of a modified swivel bowl.
According to this invention, a valve train assembly for overhead valve engine is provided with a generally conventional rocker arm 11 which suitably cooperates with a push rod 12 extending from a lifter member of a cam (not shown). Rocker arm 11 is provided with an inwardly extending, semi-spherical recess 13 and a circular opening 14 which is positioned within an outwardly extending portion 14 prime. A semi-spherical swivel bowl 15 is seated within portion 14 prime and is adapted to admit a valve rod 17 within its recess 15 prime. Rod 17 is secured within said bowl 15 by means of an adjusting nut 16. A tension spring 21 (see FIGURES 3 and 4) cooperates between said recess 13 and a portion of the 3,335,709 Patented Aug. 15, 1967 valve rod 17 which is disposed between bowl 15 and nut 16. A valve stem 18 is provided with a circular stop member 20 which abuts the coil spring 19.
Looking now at FIGURE 2 of the drawing, one will see that, in operation, the semi-spherical swivel bowl 15 is magnetized so as to keep the rocker arm 11 during the entire operation of closing and opening of the valve. Furthermore, the tension spring 21, which is held securely between the adjusting nut 16 and the swivel bowl 15 presses against the push rod 12 which, in turn, presses against a lifter (not shown). This arrangement eliminates the looseness, between the swivel bowl 15 and the rocker arm, and prevents bending of the push rod.
It will also be noted that the semi-spherical bowl 15 is provided with a center core consisting of soft iron substance 16 prime which is capable of maximum magnetizing efiect.
What I now claim is:
A valve train assembly of an overhead valve engine comprising, in combination, a rocker arm having an opening with its arcuately concaved bottom portion, a stud positioned within said opening, a semi-spherical bowl mounted on one end of said stud and positioned Within said bottom portion, a tension spring encircling said stud and being positioned on said bowl, an adjustable nut on the other end portion of said stud for securing said spring on said bowl, a valve stem arrangement for supporting said rocker arm, said rocker arm being provided with an arcuately convexed portion, a push rod of a lifter abutting said convexed portion, the material of said convexed portion encircled by the other end of said tension spring capable of pushing against said push rod which, in turn, be adapted to activate said lifter, said semi-spherical bowl being provided with an opening for admitting said stud therein, the center portion of said bowl being provided with a semi-spherical soft iron core for maximum magnetizing capacity of said bowl, said tension spring being provided with a permanent loop encircling said stud and an adjustable loop for encircling said convexed portion of said rocker arm, said adjustable loop having a break through the body thereof, said loop being disposed in such a manner that the loops assume nonvibrating relationship to each other, said valve stem arrangement including a stem, the upper portion of said stern being provided with a circular stop member, a helical spring adapted to abut said stop member, said stern being disposed in a close proximity to the bottom portion of said rocker arm, absorbing vibratory fluctuations of said coil spring.
References Cited UNITED STATES PATENTS 1,363,060 12/1920 Shearer 123.-- 2,776,652 1/1957 Crotty 123--188 2,955,581 10/1960 Fedak 123--90 3,139,872 7/1964 Thompson 123-90 3,301,238 1/ 1967 Hanley 12390 MARK NEWMAN, Primary Examiner.
A. L. SMITH, Examiner.
US3335709D Valve train assembly foe overhead valve engine Expired - Lifetime US3335709A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754539A (en) * 1972-06-29 1973-08-28 J Bandimere Engine rocker arm stabilizer
FR2483023A1 (en) * 1980-05-23 1981-11-27 Torrington Co JOINT BEARING WITHOUT FRICTION OF AN OSCILLATING ELEMENT
US5645025A (en) * 1996-03-27 1997-07-08 Briggs & Stratton Corporation Internal combustion engine
US7146948B1 (en) 2005-09-30 2006-12-12 Clinton D Eells Valve lifting arrangement
DE10136353B4 (en) * 2001-07-26 2017-08-17 Volkswagen Ag Valve gear of an internal combustion engine for a deactivatable gas exchange globe valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1363060A (en) * 1918-12-06 1920-12-21 George T Shearer Attachment for valve mechanism
US2776652A (en) * 1954-02-04 1957-01-08 Crotty Corp Device for reducing wear between poppet valves and their actuating devices
US2955581A (en) * 1959-06-19 1960-10-11 Fedak Elmer Valve rocker arm guide
US3139872A (en) * 1962-07-23 1964-07-07 Thompson Marion Lee Spring for biasing a rocker arm
US3301238A (en) * 1962-02-01 1967-01-31 Gen Motors Corp Stud mounted rocker and spring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1363060A (en) * 1918-12-06 1920-12-21 George T Shearer Attachment for valve mechanism
US2776652A (en) * 1954-02-04 1957-01-08 Crotty Corp Device for reducing wear between poppet valves and their actuating devices
US2955581A (en) * 1959-06-19 1960-10-11 Fedak Elmer Valve rocker arm guide
US3301238A (en) * 1962-02-01 1967-01-31 Gen Motors Corp Stud mounted rocker and spring
US3139872A (en) * 1962-07-23 1964-07-07 Thompson Marion Lee Spring for biasing a rocker arm

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754539A (en) * 1972-06-29 1973-08-28 J Bandimere Engine rocker arm stabilizer
FR2483023A1 (en) * 1980-05-23 1981-11-27 Torrington Co JOINT BEARING WITHOUT FRICTION OF AN OSCILLATING ELEMENT
US4314732A (en) * 1980-05-23 1982-02-09 The Torrington Company Oscillating bearing
US5645025A (en) * 1996-03-27 1997-07-08 Briggs & Stratton Corporation Internal combustion engine
DE10136353B4 (en) * 2001-07-26 2017-08-17 Volkswagen Ag Valve gear of an internal combustion engine for a deactivatable gas exchange globe valve
US7146948B1 (en) 2005-09-30 2006-12-12 Clinton D Eells Valve lifting arrangement

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