ES350278A1 - Crankshafts - Google Patents
CrankshaftsInfo
- Publication number
- ES350278A1 ES350278A1 ES350278A ES350278A ES350278A1 ES 350278 A1 ES350278 A1 ES 350278A1 ES 350278 A ES350278 A ES 350278A ES 350278 A ES350278 A ES 350278A ES 350278 A1 ES350278 A1 ES 350278A1
- Authority
- ES
- Spain
- Prior art keywords
- bores
- crankpin
- angled
- crossing
- main journals
- 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
Links
Classifications
-
- 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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
-
- 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
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/14—Features relating to 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Oil supply ducts 4, 5, 9, between the main journals 3 and crankpins 1 of a crank-shaft for internal combustion engines having cylinders arranged in a V with two connecting rods carried on each crankpin 1, are positioned for minimum stress concentration at the crankpin faces, and to facilitate drilling. As shown, crossing bores 5, drilled from bevelled faces 6 on opposing crankwebs 2, link diametrical bores 4, in the main journals 3, with outlet bores 9 to the crankpin surfaces, the bores 9 each consisting of two bores angled to each other (Fig. 3) to intersect the lower of the crossing bores 5 and form surface outlets 8 on the crankpin centre line of Fig. 1. The crossing bores 5 may, as shown, intersect such that the connecting rods can be lubricated from one main bearing only in an emergency, alternatively, the bores 5 may cross without communicating. In Figs. 4 to 6 (not shown) the outlet bores (21), (Fig. 6) in the crankpin 1 are formed diametrically, the admission bores (22), (Fig. 5) in the main journals each consisting of two bores angled to each other whereby the linking bores (20) are further from the transition (23) of the crankwebs 2 and crankpin 1 to lower stress concentration at this point. Alternatively, both the admission bores 4 in the main journals 3 and outlet bores 9 in the crankpin 1 may each be formed as two bores angled to each other for greater strength, or may each be formed diametrically for simplicity.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH187967A CH470601A (en) | 1967-02-08 | 1967-02-08 | Crankshaft of a piston internal combustion engine with V-arrangement of the cylinder rows |
Publications (1)
Publication Number | Publication Date |
---|---|
ES350278A1 true ES350278A1 (en) | 1969-05-01 |
Family
ID=4220713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES350278A Expired ES350278A1 (en) | 1967-02-08 | 1968-02-08 | Crankshafts |
Country Status (6)
Country | Link |
---|---|
CH (1) | CH470601A (en) |
DE (1) | DE1576411B1 (en) |
ES (1) | ES350278A1 (en) |
FR (1) | FR1552691A (en) |
GB (1) | GB1155803A (en) |
NL (1) | NL6702717A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2157916C3 (en) * | 1971-11-23 | 1982-03-04 | Klöckner-Humboldt-Deutz AG, 5000 Köln | crankshaft |
DE102008036174A1 (en) * | 2008-08-02 | 2009-11-12 | Audi Ag | Lubricating oil supply for crankshaft of internal combustion engine, has branch borehole guiding from bearing surface of bearing pin to blind hole, and longitudinal axes of inclined borehole and branch borehole enclosing angle |
US11313409B1 (en) | 2019-12-19 | 2022-04-26 | Brunswick Corporation | Crankshaft and cranktrain for internal combustion engine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE905441C (en) * | 1951-11-29 | 1954-03-01 | Motoren Werke Mannheim Ag | Lubricating oil supply for connecting rod bearings of piston engines |
DE1025674B (en) * | 1954-12-04 | 1958-03-06 | Motoren Werke Mannheim Ag | Piston cooling in internal combustion engines |
US3069926A (en) * | 1959-11-30 | 1962-12-25 | Gen Motors Corp | Connecting rod and crankshaft connection for internal combustion engine |
GB950215A (en) * | 1961-07-07 | 1964-02-19 | Humber Ltd | Improvements in crankshafts |
FR1310621A (en) * | 1961-10-17 | 1962-11-30 | Simca Automobiles Sa | Crankshaft for internal combustion engine |
-
1967
- 1967-02-08 CH CH187967A patent/CH470601A/en not_active IP Right Cessation
- 1967-02-10 DE DE19671576411 patent/DE1576411B1/en active Pending
- 1967-02-22 NL NL6702717A patent/NL6702717A/xx unknown
-
1968
- 1968-01-31 GB GB5031/68A patent/GB1155803A/en not_active Expired
- 1968-02-05 FR FR1552691D patent/FR1552691A/fr not_active Expired
- 1968-02-08 ES ES350278A patent/ES350278A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1576411B1 (en) | 1970-04-16 |
CH470601A (en) | 1969-03-31 |
GB1155803A (en) | 1969-06-25 |
NL6702717A (en) | 1968-08-09 |
FR1552691A (en) | 1969-01-03 |
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