WO2008078202A3 - Improved internal combustion engine with bearing cap dampening - Google Patents

Improved internal combustion engine with bearing cap dampening Download PDF

Info

Publication number
WO2008078202A3
WO2008078202A3 PCT/IB2007/004467 IB2007004467W WO2008078202A3 WO 2008078202 A3 WO2008078202 A3 WO 2008078202A3 IB 2007004467 W IB2007004467 W IB 2007004467W WO 2008078202 A3 WO2008078202 A3 WO 2008078202A3
Authority
WO
WIPO (PCT)
Prior art keywords
bearing cap
dampening
internal combustion
combustion engine
bearing
Prior art date
Application number
PCT/IB2007/004467
Other languages
French (fr)
Other versions
WO2008078202A2 (en
Inventor
Amaury Sicre
Frederic Pichot
Original Assignee
Renault Trucks
Amaury Sicre
Frederic Pichot
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 Renault Trucks, Amaury Sicre, Frederic Pichot filed Critical Renault Trucks
Priority to US12/520,557 priority Critical patent/US8281762B2/en
Priority to EP07872077A priority patent/EP2100021B1/en
Priority to JP2009543546A priority patent/JP5279723B2/en
Publication of WO2008078202A2 publication Critical patent/WO2008078202A2/en
Publication of WO2008078202A3 publication Critical patent/WO2008078202A3/en
Priority to US13/495,097 priority patent/US8499737B2/en

Links

Classifications

    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

The invention relates to an internal combustion engine having an engine block comprising a crankshaft which is mounted on the engine block by at least a first and a second main bearings (14), wherein said main bearings comprise each a first bearing portion and a second bearing portion, said second bearing portion (18) being part of a bearing cap (20), characterized in that at least the first bearing cap (20) is connected to the engine block or to the second bearing cap by at least one dampening structure (36, 60, 62 66), said structure comprising a first support portion (38) fixed on said bearing cap (20), a second support portion (40) fixed on said engine block or on an adjacent bearing cap, and a dampening portion (58) comprising an elastomeric material which connects the two support portions.
PCT/IB2007/004467 2006-12-27 2007-12-27 Improved internal combustion engine with bearing cap dampening WO2008078202A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/520,557 US8281762B2 (en) 2006-12-27 2007-12-27 Internal combustion engine with bearing cap dampening
EP07872077A EP2100021B1 (en) 2006-12-27 2007-12-27 Improved internal combustion engine with bearing cap dampening
JP2009543546A JP5279723B2 (en) 2006-12-27 2007-12-27 Improved internal combustion engine with bearing cap damping
US13/495,097 US8499737B2 (en) 2006-12-27 2012-06-13 Internal combustion engine with bearing cap dampening

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/IB2006/004195 WO2008078145A1 (en) 2006-12-27 2006-12-27 Internal combustion engine with bearing cap dampening
IBPCT/IB2006/004195 2006-12-27

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/520,557 A-371-Of-International US8281762B2 (en) 2006-12-27 2007-12-27 Internal combustion engine with bearing cap dampening
US13/495,097 Division US8499737B2 (en) 2006-12-27 2012-06-13 Internal combustion engine with bearing cap dampening

Publications (2)

Publication Number Publication Date
WO2008078202A2 WO2008078202A2 (en) 2008-07-03
WO2008078202A3 true WO2008078202A3 (en) 2008-10-16

Family

ID=38440210

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/IB2006/004195 WO2008078145A1 (en) 2006-12-27 2006-12-27 Internal combustion engine with bearing cap dampening
PCT/IB2007/004467 WO2008078202A2 (en) 2006-12-27 2007-12-27 Improved internal combustion engine with bearing cap dampening

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/004195 WO2008078145A1 (en) 2006-12-27 2006-12-27 Internal combustion engine with bearing cap dampening

Country Status (4)

Country Link
US (2) US8281762B2 (en)
EP (1) EP2100021B1 (en)
JP (1) JP5279723B2 (en)
WO (2) WO2008078145A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008078145A1 (en) * 2006-12-27 2008-07-03 Renault Trucks Internal combustion engine with bearing cap dampening
GB2485542B (en) * 2010-11-16 2013-11-06 Jaguar Cars Composite Cylinder Block of an I.C. Engine
GB2512893B (en) 2013-04-10 2016-04-20 Ford Global Tech Llc An engine bearing block assembly
JP6874669B2 (en) * 2017-12-15 2021-05-19 トヨタ自動車株式会社 Crank cap assembly and internal combustion engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2011998A (en) * 1977-11-22 1979-07-18 List H Internal combustion engines
JPS5582835A (en) * 1978-12-18 1980-06-21 Hino Motors Ltd Vibration preventive device for cylinder block
EP0056347A2 (en) * 1981-01-12 1982-07-21 Nissan Motor Co., Ltd. Low noise level internal combustion engine
EP0056588A2 (en) * 1981-01-19 1982-07-28 Nissan Motor Co., Ltd. Internal combustion engine with bearing beam structure
GB2105784A (en) * 1981-08-12 1983-03-30 List Hans Low-noise-level internal combustion engines
JPH05195870A (en) * 1992-01-22 1993-08-03 Mazda Motor Corp Block construction for engine
FR2711186A1 (en) * 1993-10-11 1995-04-21 Renault Vehicules Ind Internal combustion engine with cushioned skirts and large bowl.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1101782A (en) * 1978-05-22 1981-05-26 Leslie J. Hollo Safety devices for mechanically operated apparatus such as a punch press
JPS6029657Y2 (en) * 1980-09-17 1985-09-06 日産自動車株式会社 Low noise automotive engine
JPS57102540A (en) 1980-12-16 1982-06-25 Mazda Motor Corp Vibration-preventing structure for cylinder block
US5107809A (en) * 1991-05-28 1992-04-28 Kia Motors Corporation Engine block and bearing assembly
US5370087A (en) * 1993-09-28 1994-12-06 The United States Of America As Represented By The Secretary Of The Navy Low vibration polymeric composite engine
US6044818A (en) * 1998-08-26 2000-04-04 Almarv Llc Vibration dampener for internal combustion engines
KR100412841B1 (en) * 2001-07-23 2003-12-31 현대자동차주식회사 a ladder frame of engine
JP2004169596A (en) 2002-11-19 2004-06-17 Toyota Motor Corp Bearing structure of crank shaft
US6745740B1 (en) * 2003-02-13 2004-06-08 Decuir Engine Technologies, Llc Vibration dampening arrangement for internal combustion engines
WO2008078145A1 (en) * 2006-12-27 2008-07-03 Renault Trucks Internal combustion engine with bearing cap dampening

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2011998A (en) * 1977-11-22 1979-07-18 List H Internal combustion engines
JPS5582835A (en) * 1978-12-18 1980-06-21 Hino Motors Ltd Vibration preventive device for cylinder block
EP0056347A2 (en) * 1981-01-12 1982-07-21 Nissan Motor Co., Ltd. Low noise level internal combustion engine
EP0056588A2 (en) * 1981-01-19 1982-07-28 Nissan Motor Co., Ltd. Internal combustion engine with bearing beam structure
GB2105784A (en) * 1981-08-12 1983-03-30 List Hans Low-noise-level internal combustion engines
JPH05195870A (en) * 1992-01-22 1993-08-03 Mazda Motor Corp Block construction for engine
FR2711186A1 (en) * 1993-10-11 1995-04-21 Renault Vehicules Ind Internal combustion engine with cushioned skirts and large bowl.

Also Published As

Publication number Publication date
US20100059014A1 (en) 2010-03-11
WO2008078145A1 (en) 2008-07-03
US8281762B2 (en) 2012-10-09
EP2100021A2 (en) 2009-09-16
EP2100021B1 (en) 2012-08-22
JP2010514979A (en) 2010-05-06
JP5279723B2 (en) 2013-09-04
WO2008078202A2 (en) 2008-07-03
US20120247417A1 (en) 2012-10-04
US8499737B2 (en) 2013-08-06

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