JPS57107453A - Counterweight for crankshaft in internal combustion engine - Google Patents
Counterweight for crankshaft in internal combustion engineInfo
- Publication number
- JPS57107453A JPS57107453A JP18124280A JP18124280A JPS57107453A JP S57107453 A JPS57107453 A JP S57107453A JP 18124280 A JP18124280 A JP 18124280A JP 18124280 A JP18124280 A JP 18124280A JP S57107453 A JPS57107453 A JP S57107453A
- Authority
- JP
- Japan
- Prior art keywords
- counterweights
- group
- directions
- combustion engine
- internal combustion
- 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.)
- Pending
Links
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
- 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
- F16C3/20—Shape of crankshafts or eccentric-shafts having regard to balancing
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
- F16F15/283—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same for engine crankshafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
PURPOSE: To prevent load applied to main jounal bearing from being excessively increased by counterweights for a crankshafts in a V type 12-cylinder internal combustion engine, by arranging the counterweights in such specific directions that inertia force exerted to each journal bearing becomes minimum.
CONSTITUTION: Counterweights 1F, 6R, 3R, 4F are positioned in the directions of 180° with respect to rotary members B1, B6, B2, B4, respectively, and the phases of each pair of the counterweights in each group are shifted by a crank angle of α=60°±15° relative to each other. Further, the counterweights 1F, 1R in the first group and the counterweights 6F, 6R in the second group are positioned in the same directions, respectively, and the counterweights 3F, 3R in the second group and the counterweights 4F, 4R are positioned in the same directions, respectively. The counterweights 1F, 1R, 6F, 6R in the first and fourth groups and the counterweights 3F, 3R, 4F, 4R in the second and third groups are positioned in the opposite directions, respectively.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18124280A JPS57107453A (en) | 1980-12-23 | 1980-12-23 | Counterweight for crankshaft in internal combustion engine |
GB8137989A GB2092235A (en) | 1980-12-23 | 1981-12-16 | Counterbalanced Crankshaft |
DE19813151091 DE3151091A1 (en) | 1980-12-23 | 1981-12-23 | "ARRANGEMENTS OF A CRANKSHAFT" |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18124280A JPS57107453A (en) | 1980-12-23 | 1980-12-23 | Counterweight for crankshaft in internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57107453A true JPS57107453A (en) | 1982-07-03 |
Family
ID=16097273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18124280A Pending JPS57107453A (en) | 1980-12-23 | 1980-12-23 | Counterweight for crankshaft in internal combustion engine |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS57107453A (en) |
DE (1) | DE3151091A1 (en) |
GB (1) | GB2092235A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4833940A (en) * | 1987-02-06 | 1989-05-30 | Toyota Jidosha Kabushiki Kaisha | Crankshaft for a 90 degree V-type eight-cylinder internal combustion engine |
CN104791367A (en) * | 2015-04-28 | 2015-07-22 | 重庆科克发动机技术有限公司 | Crankshaft of 16-cylinder V-type engine and dynamic balance calibration method of crankshaft |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS604645A (en) * | 1983-06-20 | 1985-01-11 | Nissan Motor Co Ltd | Crank shaft of v-type 6-cylinder internal-combustion engine |
US8757027B2 (en) * | 2010-09-01 | 2014-06-24 | Ford Global Technologies, Llc | Reduced mass crankshaft |
US9273604B2 (en) | 2013-02-08 | 2016-03-01 | Electro-Motive Diesel, Inc. | Crankshaft |
EP3268624B1 (en) * | 2015-03-11 | 2021-08-11 | Promescon GmbH | Crankschaft for an in-line combustion engine and in-line combustion engine |
-
1980
- 1980-12-23 JP JP18124280A patent/JPS57107453A/en active Pending
-
1981
- 1981-12-16 GB GB8137989A patent/GB2092235A/en not_active Withdrawn
- 1981-12-23 DE DE19813151091 patent/DE3151091A1/en not_active Ceased
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4833940A (en) * | 1987-02-06 | 1989-05-30 | Toyota Jidosha Kabushiki Kaisha | Crankshaft for a 90 degree V-type eight-cylinder internal combustion engine |
CN104791367A (en) * | 2015-04-28 | 2015-07-22 | 重庆科克发动机技术有限公司 | Crankshaft of 16-cylinder V-type engine and dynamic balance calibration method of crankshaft |
Also Published As
Publication number | Publication date |
---|---|
GB2092235A (en) | 1982-08-11 |
DE3151091A1 (en) | 1982-06-24 |
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