GB2456941A - Crankshaft with variable stroke and oil seal - Google Patents

Crankshaft with variable stroke and oil seal Download PDF

Info

Publication number
GB2456941A
GB2456941A GB0907293A GB0907293A GB2456941A GB 2456941 A GB2456941 A GB 2456941A GB 0907293 A GB0907293 A GB 0907293A GB 0907293 A GB0907293 A GB 0907293A GB 2456941 A GB2456941 A GB 2456941A
Authority
GB
United Kingdom
Prior art keywords
oil
present
fastener
bearing cap
seal
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.)
Granted
Application number
GB0907293A
Other versions
GB2456941B (en
GB0907293D0 (en
Inventor
Edward Charles Mendler
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
Application filed by Individual filed Critical Individual
Publication of GB0907293D0 publication Critical patent/GB0907293D0/en
Publication of GB2456941A publication Critical patent/GB2456941A/en
Application granted granted Critical
Publication of GB2456941B publication Critical patent/GB2456941B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/047—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of variable crankshaft position

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Sealing Of Bearings (AREA)

Abstract

According to the present invention, a variable compression ratio machine having main bearings mounted in an eccentric carrier or support includes an oil seal located primarily in a main bearing cap for minimizing leakage of pressurized main bearing oil. The seal is located generally in a first main bearing fastener socket or fastener access cutout in order to minimize structurally compromising the bearing cap, and a portion of the fastener socket preferably is used as an oil passageway as well as for wrench access to the fastener. The oil seal and oil circuit of the present invention enable the size of the eccentric support to be minimized while also providing highly effective oil sealing. In more detail, a significant advantage of the present invention is that highly effective oil sealing is attained without compromising the size or structural integrity of the bearing cap. A second significant advantage of the present invention is that it can be manufactured and assembled at low cost. The oil sealing system of the present invention is robust and highly reliable.
GB0907293A 2006-10-03 2007-09-25 Oil Circuit Expired - Fee Related GB2456941B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84931406P 2006-10-03 2006-10-03
PCT/US2007/020640 WO2008042154A2 (en) 2006-10-03 2007-09-25 Crankshadft with variable stroke and oil seal

Publications (3)

Publication Number Publication Date
GB0907293D0 GB0907293D0 (en) 2009-06-10
GB2456941A true GB2456941A (en) 2009-08-05
GB2456941B GB2456941B (en) 2011-07-06

Family

ID=39268960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0907293A Expired - Fee Related GB2456941B (en) 2006-10-03 2007-09-25 Oil Circuit

Country Status (3)

Country Link
US (1) US20100006057A1 (en)
GB (1) GB2456941B (en)
WO (1) WO2008042154A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5331588B2 (en) * 2009-06-19 2013-10-30 本田技研工業株式会社 Crankcase for internal combustion engine
US8851030B2 (en) * 2012-03-23 2014-10-07 Michael von Mayenburg Combustion engine with stepwise variable compression ratio (SVCR)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247430B1 (en) * 1997-10-31 2001-06-19 Fev Motorentechnik Gmbh & Co. Kommandgesellschaft Compression ratio setting device for an internal-combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897804A (en) * 1958-01-15 1959-08-04 Cooper Bessemer Corp Means to vary the compression ratio of an internal combustion engine during operation
US6443107B1 (en) * 1999-05-27 2002-09-03 Edward Charles Mendler Rigid crankshaft cradle and actuator
DE10051271B4 (en) * 2000-10-16 2015-07-16 Fev Gmbh In their compression ratio adjustable piston internal combustion engine with integrated Verstellaktuator
US6637348B1 (en) * 2002-07-02 2003-10-28 Siemens Sgp Verkehrstechnik Gmbh Level-adjustable main spring and actively biased emergency spring with fail-safe behavior
US7370613B2 (en) * 2004-11-30 2008-05-13 Caterpillar Inc. Eccentric crank variable compression ratio mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247430B1 (en) * 1997-10-31 2001-06-19 Fev Motorentechnik Gmbh & Co. Kommandgesellschaft Compression ratio setting device for an internal-combustion engine

Also Published As

Publication number Publication date
GB2456941B (en) 2011-07-06
WO2008042154A3 (en) 2008-08-07
US20100006057A1 (en) 2010-01-14
GB0907293D0 (en) 2009-06-10
WO2008042154A2 (en) 2008-04-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20120925