US3193053A - Lubricating system for engines - Google Patents

Lubricating system for engines Download PDF

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Publication number
US3193053A
US3193053A US173033A US17303362A US3193053A US 3193053 A US3193053 A US 3193053A US 173033 A US173033 A US 173033A US 17303362 A US17303362 A US 17303362A US 3193053 A US3193053 A US 3193053A
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US
United States
Prior art keywords
distributor
oil
suction channel
circulatory
lubricating oil
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
US173033A
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English (en)
Inventor
Hans O Scherenberg
Gassmann Johannes
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.)
Daimler Benz AG
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Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Application granted granted Critical
Publication of US3193053A publication Critical patent/US3193053A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N27/00—Proportioning devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/04—Lubrication
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • 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
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
    • F16N7/32—Mist lubrication
    • 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
    • F02B2730/00—Internal combustion engines with pistons rotating or oscillating with relation to the housing
    • F02B2730/01—Internal combustion engines with pistons rotating or oscillating with relation to the housing with one or more pistons in the form of a disk or rotor rotating with relation to the housing; with annular working chamber
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to an installation for the lubrication of the contact or bearing surfaces of rotary piston internal combustion engines, especially those operating according to the diesel principle.
  • the present invention aims at a universally utilizable lubrication for rotary piston internal combustion engines.
  • the present invention proposes to introduce continuously into the suction channel the smallest oil quantities that can be accurately metered.
  • a distributor device be arranged for the distribution of the lubricating oil in the suction or inlet channel as closely adjacent to the inlet into the combustion spaces as possible and that the distributor device be operatively connected with a supply installation which removes the lubricating oil from the oil circulatory system under pressure and forcibly conducts the lubricating oil to the distributor device in dependence on the rotational speed of the rotary piston engine in an accurately metered manner.
  • a slotted tubular element extending at least over a part of the channel width which tubular element receives in a slot thereof a wick which extends or protrudes, on the one hand, into the inside of the tubular element and, on the other, through i a slot provided Within the channel wall into the suction channel itself.
  • a plunger or piston member, movable in the longitudinal direction thereof Within given limits is provided as a supply installation which installation is arranged within a cross bore of a shaft rotating together with the rotor of the rotary piston internal combustion engine.
  • the housing accommodating the shaft is provided with oppositely disposed apertures coaxial to or in alignment with the cross bore of which one of the apertures is operatively connected as a supply with the oil circulatory system and of which the other is operatively connected with the distributor device at the suction channel.
  • the control shaft for the injection pump or for the pump nozzles of the rotary piston internal combustion engine may thereby serve in an advantageous manner as drive shaft and/ or for the accommodation of the supply installation.
  • a very accurately and, in particular, a very fine metering of the lubricating oil is possible by the arrangement in accordance with the present invention.
  • the quantity of lubricating oil supplied is dependent only on the rotary speed of the engine.
  • the value or magnitude of the pressure within the oil circulatory system or of the supply pump plays no significant role whatsoever; it is only necessary that some pressure exist at all times within the oil circulatory system. In this manner, pressure fluctuations cannot affect in any manner the lubrication of the bear- Patented July 6, 1965 ing surfaces.
  • the control shaft for the pump nozzles as a shaft for the supply installation, additional installations become unnecessary resulting in savings, and no additional need for space arises as a result thereof.
  • the wick which may consist of a metal mesh or a metallic fabric of any known conventional construction, is wedged or clamped into the slot of the tubular piece, and is secured in this position by soldering or the like.
  • the tubular piece is appropriately introduced laterally together with the wick during assembly thereof. It is also appropriate to arrange the tubular piece at as narrow a place of the suction channel as possible where the velocity of the air stream passing the same is as large as possible.
  • Still a further object of the present invention resides in the provision of a lubricating system for rotary piston internal combustion engines, and more particularly for the internal bearing surfaces along which glides the rotary piston which assures an accurately metered amount of lubricating oil regulated only in dependence on the rotary speed of the engine but independent of the pressure of the oil circulatory system.
  • FIGURE 1 is a partial cross-sectional view through a lubricating installation in accordance with the present invention
  • FIGURE 2 is a partial cross-sectional view taken along line IIII of FIGURE 1.
  • the suction or inlet connecting member 11 is cast integral with the housing 10 of a rotary piston internal combustion engine in which the rotor (not illustrated) carries out rotary movements in a conventional manner.
  • a bore 13 adapted to be closed laterally thereof is disposed transversely to the suction channel 12 within its wall at a place thereof as narrow as possible.
  • the bore 13 serves for the accommodation of the distributor device.
  • the bore 13 extends with a slot 14 into the suction channel 12 itself.
  • the distributor device is shown as accommodated within a part cast integral with the housing, it is, of course, understood that the present invention is not limited thereto since the dis tributor device in accordance with the present invention r i "3,193,053 r may also be suitably accommodated in a suction line threadably connected to the engine.
  • a tubular piece 15 serves as distributordevice which is introduced into the bore 13 and which itself is also provided with a slot 16 in which is clamped or wedged awick 17.
  • the wick 17, on theone hand, extends approximately over the entire width of the suction channel 12 into the suction channel itself whereas the other part of.
  • wick 17 is suitably secured at the tubular member 15, for example, by spot welding.
  • the tubular piece is' provided along the circumference thereof with a bore 18 which is operatively connected or in communicationthrough a housing bore 19 and through a line 20, illustrated in part only schematically, with a supply installation generally designated by reference numeral 21 that will be described more fully hereinafter.
  • the lubricating .oil is conducted through line 20 from the supply installation 21 to the distributor device and is supplied into the inside of the tubular piece 15.
  • the wick 17 thereby becomes saturated with'the lubricant.
  • the air or mixturepassing the wick'17 within the suction channel 12 continuously draws small oil paroil tofsaid distributor means innan accurately'predeterticles out of the wick 17.
  • the small oil particles precipitate on the bearing surface 22 on the inside of the lionsing 10 where they .form an oil film;
  • the supply installation consisting of a, single pump generally designated by reference numeral 21 servesfor the exact metering of the oil quantity intended for the distributor device.
  • the control shaft 23 rotates with'the rotor of the rotary piston engine and serves to actuate the pump nozzles 24.
  • a crossbore 25 is arranged within the control shaft 23 which bore 25 is provided inthe center section 26 thereof with a smaller'diameterfand in bothlateral end sections 27 thereof with larger diameters.
  • a needle-shaped plunger or piston 28 is disposed within the center section 26 which plunger 28 is somewhat longer mined metered amount and substantially independently of the pressure in sa'id circulatory means for a given rotation- 211 speed of the rotary piston engine, said distributor means including a slotted tubular memberarranged within'a wall portion of'said suction channel means and extending ,atleastover a portion of the channel width, wick means within the slot of said slotted tubular member, said wick 'means'extending, on' the one hand, into the inside of said tubular member and, on the other, through a slot provided within said j channel wall portioninto said sucthannthe bore section 26.
  • the plunger 28 is movable v I tion channel means for distributing the lubricating oil
  • the plunger 28 has supplied with the upperpor-v tion thereof, as viewed in FIGURES land 2, a predetermined lubricating oil volume through the bore 30 and the line 20 into the distributor device. .,As the shaft 23 continues to rotate, the plunger 28 carries out the same tion channel itself.
  • wick "means within the slotof said slotted tubular member said'wick means extending, on the one hand, into the inside of said tubular inember and, onthe other, through a slot provided within said channel wall portion into said suction channel-itself, said wick means being made of metal fabric,'being clamped within the slot provided 'within said tubular member and' being secured operationunder the pressure prevailing in line'3 2, i.e.,.
  • the plunger 28 is always displaced in the upward direction as viewed in'FIGURES 1 'and,.2 by the pressure force applied to the'lower end thereof.
  • a quantity. of lubricating oil j is supplied the magnitude ofwhich corresponds to twice the stroke volume of the plunger 28; I a p
  • the stroke of the plunger 28 can 'be determined beforehand by acorresponding position of the cross pins 29.
  • a housing accommodating said shaft 'means-which' isprovide'dwith' two mutually'oppositely 'disposed' apertures at times. substantially in alignment 'with said transversebore means, one of said apertures serving; as connection with the oil circulatory means and sure within the oil circulatory system is of nojsignificance ,7
  • distributor means within said suction channel means for distributing the lubricating oil
  • supply means operatively connected with said distributor means for removing the lubricating oil from said oil circulatory means and for forcibly supplying the lubricating oil to said distributor means in dependence on the rotational speed of the rotary piston engine in an accurately metered manner and substantially independently of the pressure in said circulatory means
  • said supply means including a rotating shaft operatively connected with the rotor of the rotary piston engine to rotate in unison therewith, said shaft being provided with transverse bore means accommodating therein plunger means adapted to move in said transverse bore means within predetermined limits, a housing accommodating said shaft and provided with two mutually oppositely disposed apertures at times in substantial alignment with said transverse bore means, one of said apertures serving as connection with the oil circulatory means and the other being operatively connected with said distributor means.
  • said supply means including a rotating shaft operatively connected with the rotor of the rotary piston engine to rotate in unison therewith, said shaft being provided with transverse bore means accommodating therein needle-shaped plunger means adapted to move in said transverse bore means within predetermined limits, a housing accommodating said shaft and provided with two mutually oppositely disposed apertures at times in substantial alignment with said transverse bore means, one of said apertures serving as connection with the oil circulatory means and the other being operatively connected with said distributor means, said transverse bore means having a center section of relatively smaller diameter in which is accommodated said plunger means, said transverse bore means having also outer sec tions of relatively larger diameter, and said needle-shaped plunger means extending with the end sections thereof into said outer sections of
  • tributor means within said suction channel means for distributing the lubricating oil
  • supply means operatively connected with said distributormeans for removing the lubricating oil from said oil circulatory meanas and for forcibly supplying the lubircating oil to said distributor means in dependence on the rotational speed of, the rotary piston engine in an-accurately metered manner'and substantially independently of the pressure in said circulatory means
  • said supply means including saidcontrol shaftmeans operatively connected with the rotor of the rotary piston engine to rotate in unison therewith,,said control shaft means being provided with transverse bore means accommodating therein plunger means adapted to move in. said transverse bore means within predetermined limits, a housing accommodating said shaft and provided with two mutually oppositely disposed apertures at times in substantial alignment with said transverse bore means,
  • control shaft means serving as drive shaft for and accommodation of:
  • supply means operatively connected with said-distributor means for supplying the lubricant to said distributor means from said oil circulatory means including means consisting of a single engine speed responsive pumphav- I tional-s eed of the rotary'pisto'n engine and substantially independent of the pressure of the lubricant'within said circulatory means and means for selectively varying the volumetric'quantity of lubricant supplied at a given rotational speed of the rotarypiston engine regardless of'the pressure in said circulatory means by varying the stroke of said reciprocating member.
US173033A 1961-02-25 1962-02-13 Lubricating system for engines Expired - Lifetime US3193053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED35498A DE1201604B (de) 1961-02-25 1961-02-25 Schmiervorrichtung fuer Rotationskolben-Brennkraftmaschinen

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Publication Number Publication Date
US3193053A true US3193053A (en) 1965-07-06

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US173033A Expired - Lifetime US3193053A (en) 1961-02-25 1962-02-13 Lubricating system for engines

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US (1) US3193053A (de)
DE (1) DE1201604B (de)
GB (1) GB940826A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388901A (en) * 1980-07-07 1983-06-21 Toyo Kogyo Co. Ltd. Lubricating oil supply system for a supercharged rotary piston engine
US20170362974A1 (en) * 2016-06-17 2017-12-21 Pratt & Whitney Canada Corp. Rotary internal combustion engine with seal lubrication

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1451878A1 (de) * 1964-09-30 1969-05-29 Yanmar Diesel Engine Co Rotationskolben-Brennkraftmaschine
US3489246A (en) * 1968-01-03 1970-01-13 Barger Mfg Co Inc Automatic lubricator for air starters

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US734258A (en) * 1902-07-08 1903-07-21 Wilbur J H Fetters Glass-shearing device.
DE384269C (de) * 1922-08-25 1923-11-08 Hermann Frehrs Vorrichtung zum Abfuellen dickfluessiger Massen
GB308356A (en) * 1928-03-22 1930-06-19 Louis Camille Volf Apparatus for delivery of oil or the like
US1917605A (en) * 1932-07-27 1933-07-11 Portis P Shaw Lubricating device
US2738861A (en) * 1952-07-09 1956-03-20 Krauss Maffei Ag Engine cylinder lubricating means
US2878895A (en) * 1957-04-12 1959-03-24 Master Pneumatic Inc Air line lubricator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB401126A (en) * 1931-12-16 1933-11-09 Tecalemit Ltd Improvements in apparatus for adding oil to liquid or gaseous fuel
DE594406C (de) * 1932-06-12 1934-03-16 Schweizerische Lokomotiv Drehkolbenmaschine mit Schieberkolben
DE949855C (de) * 1948-10-28 1956-09-27 Herbert J Venediger Dr Ing Zweitaktbrennkraftmaschine mit Regelung der Schmierstoffzufuhr

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US734258A (en) * 1902-07-08 1903-07-21 Wilbur J H Fetters Glass-shearing device.
DE384269C (de) * 1922-08-25 1923-11-08 Hermann Frehrs Vorrichtung zum Abfuellen dickfluessiger Massen
GB308356A (en) * 1928-03-22 1930-06-19 Louis Camille Volf Apparatus for delivery of oil or the like
US1917605A (en) * 1932-07-27 1933-07-11 Portis P Shaw Lubricating device
US2738861A (en) * 1952-07-09 1956-03-20 Krauss Maffei Ag Engine cylinder lubricating means
US2878895A (en) * 1957-04-12 1959-03-24 Master Pneumatic Inc Air line lubricator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388901A (en) * 1980-07-07 1983-06-21 Toyo Kogyo Co. Ltd. Lubricating oil supply system for a supercharged rotary piston engine
US20170362974A1 (en) * 2016-06-17 2017-12-21 Pratt & Whitney Canada Corp. Rotary internal combustion engine with seal lubrication
US10570789B2 (en) * 2016-06-17 2020-02-25 Pratt & Whitney Canada Corp. Rotary internal combustion engine with seal lubrication

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Publication number Publication date
GB940826A (en) 1963-11-06
DE1201604B (de) 1965-09-23

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