US3613647A - Apparatus for actuating a plurality of valves of piston-operated internal combustion engines - Google Patents

Apparatus for actuating a plurality of valves of piston-operated internal combustion engines Download PDF

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Publication number
US3613647A
US3613647A US10432A US3613647DA US3613647A US 3613647 A US3613647 A US 3613647A US 10432 A US10432 A US 10432A US 3613647D A US3613647D A US 3613647DA US 3613647 A US3613647 A US 3613647A
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US
United States
Prior art keywords
yoke
valves
guiding
arrangement according
lever
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 - Lifetime
Application number
US10432A
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English (en)
Inventor
Hermann Mettig
Ernst-Siegfried Hartmann
Georg-Wilhelm Lewen
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Application granted granted Critical
Publication of US3613647A publication Critical patent/US3613647A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/34—Lateral camshaft position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Definitions

  • the present invention relates to a device for actuating valves for controlling the charge and discharge of a piston machine, especially a piston-operated internal combustion engine in which two valves are actuated by means of a guiding yoke.
  • valve opening cross section In order to make sure that with piston-operated internal combustion engines having a high speed a sufficiently large valve opening cross section is available for changing the charge, it is customary for reason of limited space to provide the cylinder head with a plurality of inlet and outlet valves. Such valves are as a rule arranged in pairs and are actuated simultaneously by corresponding actuating elements.
  • the above arrangement has the drawback that the overall height for the yoke-guiding means and the overall height of the rocker and the cam shaft add up and considerably increase the overall size of the cylinder unit.
  • FIG. 1 diagrammatically illustrates a cross section through the cylinder head of a four-stroke cycle internal combustion engine.
  • FIG. 2 is a top view of the cylinder head after removal of the hood.
  • FIG. 3- is a section taken along the line III-III of FIG. I.
  • the arrangement according to the present invention is characterized primarily in that the guiding means for the yoke are laterally offset with regard to the point of attack of the rocker on the yoke.
  • the lateral yoke-guiding means is advantageously placed on the outside with regard to the longitudinal central axis of the cylinder in order to keep the space between the valves free for the arrangement of the injection noule or the ignition device.
  • the yoke-guiding means are theoretically relieved from forces and moments.
  • the point of attack of the rocker on the yoke is located between the confining plane of the yoke arms on the valve side and the plane of support for the valve springs in the cylinder head.
  • a device according to the invention which comprises a rocker, to arrange the rocker on the same side as the yoke-guiding means and to pass the rocker below an arm of the yoke between a valve and the yoke-guiding means.
  • the rocker can, while taking full advantage of the space, be favorably arranged also when the yoke-guiding means in view of the assembly of the injection nozzle or the ignition device has to be placed on the outside.
  • yoke-guiding means In order to prevent the yoke from slipping off the valve shanks, it is suggested to secure the yoke against turning by means of the yoke-guiding means. This may for instance be effected by means of keys, sliding blocks or guiding means of suitable profile.
  • the arrangement shown therein comprises a cylinder head 1 having arranged therein two outlet and two inlet valves 2 and 3, respectively.
  • the inlet valves are arranged in pairs and so are the oufit valves.
  • the said pairs of valves are located in planes 4 and 5, respectively, transverse to the plane of symmetry 17 between the valve 2 on one hand and the valve 3 on the other hand.
  • Both pairs of valves 2 and 3 are actuated through the intervention of push rods 6 and 7, rockers 8 and 9 and yokes l0 and II by means of a cam shaft not illustrated in the drawings and acting directly or indirectly upon the push rods 6 and 7.
  • the special feature of the valve drive according to the invention consists in that the yoke 10, 11 is guided on a bolt 12 which is located in the point of attack of the forces laterally adjacent the plane 4, 5 respectively.
  • the point of attack 14, 15 of the rockers 8, 9 on the yoke 10, I1 is so selected that the rocker is passed below the yoke arm and between the confining plane of A a yoke arm on the valve side and the plane of support 16 for the valve spring in the cylinder head.
  • FIGS. 2 and 3 also show the injection nozzle 17.
  • the point of attack l4, 15 of the rocker on the yoke is also indicated in FIG. 3.
  • the yokes are guided and prevented from turning by the triangular profile of the yoke guiding means I2 and 13.
  • the same result may, of course, also be obtained by a key and groove arrangement.
  • An arrangement according to claim I which includes spring means associated with said valves and having one end thereof resting on a portion of said cylinder head, and in which the area of engagement of said yoke means by said lever end portion is located between the plane defined by that surface of said yoke means which faces the pertaining valves and the plane defined by that portion of said cylinder head on which said one end of said spring means rests.
  • said lever means is formed by rocker lever means arranged at the same side as said yoke guiding means with regard to the plane defined by the axes of the pertaining valve means, said rocker lever means having said one end portion thereof which is operable to engage said yoke means extend below an arm of said rocker lever means between said guiding means and one of said valves of the pertaining pair of valves.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
US10432A 1969-02-12 1970-02-11 Apparatus for actuating a plurality of valves of piston-operated internal combustion engines Expired - Lifetime US3613647A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691906882 DE1906882A1 (de) 1969-02-12 1969-02-12 Vorrichtung zur Betaetigung mehrerer Ventile bei Hubkolbenbrennkraftmaschinen

Publications (1)

Publication Number Publication Date
US3613647A true US3613647A (en) 1971-10-19

Family

ID=5724967

Family Applications (1)

Application Number Title Priority Date Filing Date
US10432A Expired - Lifetime US3613647A (en) 1969-02-12 1970-02-11 Apparatus for actuating a plurality of valves of piston-operated internal combustion engines

Country Status (4)

Country Link
US (1) US3613647A (enrdf_load_stackoverflow)
AT (1) AT301948B (enrdf_load_stackoverflow)
DE (1) DE1906882A1 (enrdf_load_stackoverflow)
GB (1) GB1302013A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963004A (en) * 1975-05-08 1976-06-15 General Motors Corporation Two-piece valve bridge
US4343268A (en) * 1979-06-07 1982-08-10 Cummins Engine Company, Inc. Energy conserving exhaust passage for an internal combustion engine
US4791893A (en) * 1986-07-11 1988-12-20 Nissan Motor Co., Ltd. Valve train arrangement for multi-valve engine
US5150672A (en) * 1991-03-12 1992-09-29 AVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof.Dr.Dr.h.c. Hans List Cylinder head of an internal combustion engine
US5365894A (en) * 1991-09-03 1994-11-22 Caterpillar Inc. Valve actuation device
US20070082526A1 (en) * 2003-01-21 2007-04-12 Bernard Tanner Screwdriver Bit and Mating Socket

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3624612A1 (de) * 1986-07-21 1988-02-04 Mtu Friedrichshafen Gmbh Ventilsteuerung fuer eine hubkolben-brennkraftmaschine
DE4410124A1 (de) * 1994-03-24 1995-09-28 Schaeffler Waelzlager Kg Verdrehsicherung eines Traversenstößels einer Ventilbetätigungseinrichtung einer Brennkraftmaschine
DE9405442U1 (de) * 1994-03-31 1995-08-03 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen 4-Ventil-Kolbenbrennkraftmaschine
DE19836906A1 (de) * 1998-08-14 2000-02-17 Deutz Ag Joch zur Gaswechselventilbetätigung

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1121245A (en) * 1913-02-19 1914-12-15 Fried Krupp Germaniawerft Ag Valve control.
US1714806A (en) * 1927-02-14 1929-05-28 Curtiss Aeroplane & Motor Co Valve-operating mechanism
US1842426A (en) * 1929-12-26 1932-01-26 Winton Engine Corp Valve gear for internal combustion engines
GB380688A (en) * 1931-01-17 1932-09-22 Fiat Spa Improved means for simultaneously operating the valves in internal combustion engines
US2070926A (en) * 1935-06-17 1937-02-16 Kinner Airplane & Motor Corp L Valve and rocker arm assembly for radial engines
US2385959A (en) * 1941-06-13 1945-10-02 Frank B Yingling Valve operating mechanism
FR1007502A (fr) * 1948-12-30 1952-05-07 Su Dwerke G M B H Moteur à combustion interne
GB833319A (en) * 1958-07-26 1960-04-21 Edward Moller Improvements in or relating to valve operating gear for internal combustion engines
US3045655A (en) * 1960-04-30 1962-07-24 Fiat Spa Cylinder head for internal combustion reciprocating engines
US3331359A (en) * 1964-08-21 1967-07-18 List Hans Cylinder head of an internal combustion engine comprising two intake and two exhaustvalves for each cylinder
US3400693A (en) * 1965-06-11 1968-09-10 List Hans Valve gear for an internal combustion engine

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1121245A (en) * 1913-02-19 1914-12-15 Fried Krupp Germaniawerft Ag Valve control.
US1714806A (en) * 1927-02-14 1929-05-28 Curtiss Aeroplane & Motor Co Valve-operating mechanism
US1842426A (en) * 1929-12-26 1932-01-26 Winton Engine Corp Valve gear for internal combustion engines
GB380688A (en) * 1931-01-17 1932-09-22 Fiat Spa Improved means for simultaneously operating the valves in internal combustion engines
US2070926A (en) * 1935-06-17 1937-02-16 Kinner Airplane & Motor Corp L Valve and rocker arm assembly for radial engines
US2385959A (en) * 1941-06-13 1945-10-02 Frank B Yingling Valve operating mechanism
FR1007502A (fr) * 1948-12-30 1952-05-07 Su Dwerke G M B H Moteur à combustion interne
GB833319A (en) * 1958-07-26 1960-04-21 Edward Moller Improvements in or relating to valve operating gear for internal combustion engines
US3045655A (en) * 1960-04-30 1962-07-24 Fiat Spa Cylinder head for internal combustion reciprocating engines
US3331359A (en) * 1964-08-21 1967-07-18 List Hans Cylinder head of an internal combustion engine comprising two intake and two exhaustvalves for each cylinder
US3400693A (en) * 1965-06-11 1968-09-10 List Hans Valve gear for an internal combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963004A (en) * 1975-05-08 1976-06-15 General Motors Corporation Two-piece valve bridge
US4343268A (en) * 1979-06-07 1982-08-10 Cummins Engine Company, Inc. Energy conserving exhaust passage for an internal combustion engine
US4791893A (en) * 1986-07-11 1988-12-20 Nissan Motor Co., Ltd. Valve train arrangement for multi-valve engine
US5150672A (en) * 1991-03-12 1992-09-29 AVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof.Dr.Dr.h.c. Hans List Cylinder head of an internal combustion engine
US5365894A (en) * 1991-09-03 1994-11-22 Caterpillar Inc. Valve actuation device
US20070082526A1 (en) * 2003-01-21 2007-04-12 Bernard Tanner Screwdriver Bit and Mating Socket

Also Published As

Publication number Publication date
GB1302013A (enrdf_load_stackoverflow) 1973-01-04
AT301948B (de) 1972-09-25
DE1906882A1 (de) 1970-09-03

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