EP0055901B1 - Ventilantriebsschmierung für eine Brennkraftmaschine - Google Patents

Ventilantriebsschmierung für eine Brennkraftmaschine Download PDF

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Publication number
EP0055901B1
EP0055901B1 EP81305842A EP81305842A EP0055901B1 EP 0055901 B1 EP0055901 B1 EP 0055901B1 EP 81305842 A EP81305842 A EP 81305842A EP 81305842 A EP81305842 A EP 81305842A EP 0055901 B1 EP0055901 B1 EP 0055901B1
Authority
EP
European Patent Office
Prior art keywords
engine
oil
case
filter means
additional filter
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
EP81305842A
Other languages
English (en)
French (fr)
Other versions
EP0055901A1 (de
Inventor
Norman Holding
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10518225&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0055901(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT81305842T priority Critical patent/ATE13579T1/de
Publication of EP0055901A1 publication Critical patent/EP0055901A1/de
Application granted granted Critical
Publication of EP0055901B1 publication Critical patent/EP0055901B1/de
Expired 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
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F01M9/105—Lubrication of valve gear or auxiliaries using distribution conduits

Definitions

  • This invention relates to an internal combustion engine having an overhead camshaft to parts of which lubrication is applied by spraying.
  • Lubrication of the interface between each cam of an overhead camshaft and the component against which the cam operates e.g. valve stem, tappet, rocker, ultimately controlling the aspiration valves of an internal combustion engine, is often effected by spraying.
  • the primary objective of such lubrication is to direct a spray of oil on to an intended area of the cam and/or the component against which the cam directly operates. Effective lubrication of the said interface is mainly dependent on maintaining a sufficient oil spray onto the intended area.
  • the spray is usually emitted from a small hole or jet in a conduit situated conveniently near the said area and fed from the engine oil pump by pipes and/or oilways in the cylinder block and head.
  • An average engine oil filter is effective in preventing the flow, in the general oil circuits, of particles which would be injurious to sleeve and rolling bearings. However, it does allow to pass minute particles which in time, become coagulated on the walls of pipes or oilways to form areas of "crust".
  • the said pieces may become dislodged purely by the flow of oil in the pipes or oilways, but their incidence is enhanced by the addition of or change to a higher detergent oil than normally used. This is particularly noticeable after the engine has been "flushed out”.
  • An object of the present invention is to provide an O.H.C. internal combustion engine wherein this problem is obviated or minimised.
  • the invention provides an internal combustion engine having an overhead camshaft and a lubrication system including an oil reservoir, a pump and a filter for supplying filtered lubricating oil to desired parts of the engine, the lubrication system including a plurality of apertures whence oil is pumped to lubricate cam surface of the camshaft, characterised in that additional filter means is provided in the oil flow to the apertures to discourage or prevent solid particles or matter from reaching the apertures and causing total or partial blockage thereof.
  • the additional filter means should be positioned as far downstream in the oil stream flow as conditions allow; preferably in the final stage, just before the spray holes, in order to minimise the likelihood of blockage.
  • the chosen example of engine of the invention is the British Ford Petrol engine 1600 OHC or 2000 OCH currently in production.
  • camshaft lubrication oil ascends from the engine oil pump and filter, both situated low near the sump, through an oilway in the cylinder block, through a perforation in the cylinder head gasket, through an oilway in the cylinder head into the camshaft centre bearing pedestal from which it passes through a horizontally drilled oilway into the spray pipe assembly (Fig. 2).
  • Fig. 2 is a pictorial view of an assembly consisting of a spray pipe 10, nipple 11 and bracket 12.
  • the assembly is that Ford Part which in U.K. is given No. 1490126 and which in Europe and U.S.A. is marked 70 HM 6578AE and DIFZ-6578A respectively.
  • the assembly is secured by a bolt 13 to the side of the camshaft centre bearing pedestal 14 (Fig. 2a) while the nipple 11 enters a horizontally drilled oilway 15, to receive and transmit oil to the pipe 10. From this point oil flows into the fore and aft halves of the pipe 10a 10b finally to emerge as a spray 16 from each of eight spray holes 17, one spray lubricating each of each cams (not illustrated).
  • the ends 18 of the pipe are sealed, and secured by one bolt each (not shown) to the camshaft force and aft bearing pedestals (also not shown).
  • Another hazardous feature of this particular engine lies in the fact that the oil passes from an oilway in the cylinder block to an oilway in the cylinder head via the cylinder head gasket. Therefore, very special care must be taken, when changing the cylinder head gasket for maintenance purposes, that foreign matter, such as scrapings does not enter the oilway in either the cylinder block or the cylinder head, for on restarting the engine, such matter could be carried along by the oil and block one or more of the spray holes.
  • Filter components are assembled in the case (1) in the following order:
  • This assembly is then secured to the camshaft centre bearing pedestal by a bolt 30 which may be tightened solidly and yet apply a dimensionally controlled compression to the two '0' ring seals 22, 27 because of the limit to its movement imposed by the solid centre parts of the various components forming a stack around it.
  • a nipple 31 on the case 21 enters the horizontally drilled hole 15 (Fig. 4) in the camshaft centre bearing pedestal 33 to admit oil to the filter case 21.
  • the ends of the pipes 20a, 20b are secured as before to the camshaft fore and aft bearing pedestals (not shown).

Landscapes

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

Claims (8)

1. Brennkraftmaschine mit obenliegender Nockenwelle und einem einen Vorratsbehälter, eine Pumpe und einen Filter aufweisenden Schmiersystem, um gefiltertes Schmieröl zu gewünschten Teilen des Motors zu fördern, wobei das Schmiersystem eine Mehrzahl von Öffnungen aufweist, durch die Öl zur Schmierung von Nockenoberflächen der Nockenwelle gesprüht wird, dadurch gekennzeichnet, daß eine zusätzlichs Filtervorrichtung in dem zu den Öffnungen führenden Ölstrom vorgesehen ist, um feste Teilchen oder Stoffe davon abzuhalten oder zu hinderen, die Öffnungen zu erreichen und diese vollständig oder teilweise zu verstopfen.
2. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die zusätzliche Filtervorrichtung mit den Ölversorgungsleitungen, in denen die Sprühöffnungen vorgesehen sind, unmittelbar verbunden ist.
3. Brennkraftmaschine nach Anspruch 2, dadurch gekennzeichnet, daß die zusätzliche Filtervorrichtung stromab von deren Filter mit zwei Ölversorgungsleitungen verbunden ist und daß eine stromauf des Filters gelegene Kammer einen Nipell aufweist, der so angeordnet und dimensioniert ist, daß eine Verbindung zu einem im Motorgehäuse vorhandenen Ölversorgungsraum besteht.
4. Brennkraftmaschine nach Anspruch 3, dadurch gekennzeichnet, daß die zusätzliche Filtervorrichtung ein Gehäuse und innerhalb des Gehäses Teile zur Bildung je einer Kammer auf jeder Seite des Filters aufweist, die durch das Filter derart geschlossen ist, daß der Ölfluß durch den Filtre gehen muß.
5. Brennkraftmaschine nach Anspruch 4, dadurch gekennzeichnet, daß diese Teile im Gehäuse befestigt sind und daß das Gehäuse am Motor durch eine einzige, durch die Mitte aller Teile gehende Halterung befestigt ist, wobei die Teile als um den Bolzen angeordneter Stapel ausgebildet sind.
6. Ölversorgungseinrichtung für eine Nockenwellenschmierung mit einer zusätzlichen Filtervorrichtung, die einen mit einer Ölversorgungsleitung eines Motors verbindbaren Einlaß und einen mit einer Leitung zur Versorgung von der Nockenschmierung dienenden Sprühöffnungen mit Ö1 verbindbaren Auslaß aufweist.
7. Einrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die zusätzliche Filtervorrichtung ein in der Mitte gelegenes Gehäuse aufweist und zwei mit Sprühöffnungen versehene Leitungen mit gefiltertem Ö1 versorgt.
8. Einrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Einzelteile der zusätzlichen Filtervorrichtung in dem Gehäuse befestigbar sind und daß das Gehäuse durch einen einzigen, mittig angeordneten Bolzen am Motor befestigbar ist.
EP81305842A 1980-12-29 1981-12-10 Ventilantriebsschmierung für eine Brennkraftmaschine Expired EP0055901B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81305842T ATE13579T1 (de) 1980-12-29 1981-12-10 Ventilantriebsschmierung fuer eine brennkraftmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8041356 1980-12-29
GB8041356 1980-12-29

Publications (2)

Publication Number Publication Date
EP0055901A1 EP0055901A1 (de) 1982-07-14
EP0055901B1 true EP0055901B1 (de) 1985-05-29

Family

ID=10518225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81305842A Expired EP0055901B1 (de) 1980-12-29 1981-12-10 Ventilantriebsschmierung für eine Brennkraftmaschine

Country Status (3)

Country Link
EP (1) EP0055901B1 (de)
AT (1) ATE13579T1 (de)
DE (1) DE3170777D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472045A (en) * 1994-07-29 1995-12-05 Modine Manufacturing Company Donut oil cooler with a reusable filter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1938506A (en) * 1932-07-05 1933-12-05 Wellman Davis Milton Valve guide lubricator
US2030646A (en) * 1934-09-26 1936-02-11 Longo Joseph Lubricating device
FR1027936A (fr) * 1949-11-21 1953-05-18 Dispositif de lubrification pour soupapes supérieures de moteurs à combustion interne
GB820878A (en) * 1956-11-05 1959-09-30 Continental Motors Corp Lubrication system for internal combustion engines
DE2620480C2 (de) * 1976-05-08 1984-03-01 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Schmierölversorgung
DE2843248C2 (de) * 1978-10-04 1984-08-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Schmierölkreislauf für eine Brennkraftmaschine

Also Published As

Publication number Publication date
EP0055901A1 (de) 1982-07-14
DE3170777D1 (en) 1985-07-04
ATE13579T1 (de) 1985-06-15

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