EP 3748145 A1 20201209 - VARIABLE COMPRESSION RATIO (VCR) ENGINE
Title (en)
VARIABLE COMPRESSION RATIO (VCR) ENGINE
Title (de)
MOTOR MIT VARIABLEM VERDICHTUNGSVERHÄLTNIS (VCR)
Title (fr)
MOTEUR À TAUX DE COMPRESSION VARIABLE (VCR)
Publication
Application
Priority
EP 19178942 A 20190607
Abstract (en)
The invention relates to a variable compression ratio (VCR) engine and a method for driving a variable compression ratio (VCR) engine. The variable compression ratio (VCR) engine (1), comprises at least one cylinder (2) with a piston (3) movably arranged within the cylinder (2), adapted to perform a predefined piston stroke within the cylinder (2), and a setting unit (4) for setting a preset compression ratio by setting a preset clearance position (11). The VCR-engine (1) further comprises a control unit (5) for setting at least one temporal clearance (15) position different from the preset clearance position (11) and for inducing at least one piston movement with the temporal clearance position (15).
IPC 8 full level
F02B 75/04 (2006.01); F02B 77/04 (2006.01); F02D 15/00 (2006.01)
CPC (source: CN EP KR)
F02B 25/04 (2013.01 - KR); F02B 61/04 (2013.01 - CN); F02B 75/02 (2013.01 - CN); F02B 75/04 (2013.01 - EP KR); F02B 75/044 (2013.01 - CN); F02B 75/048 (2013.01 - CN); F02B 75/18 (2013.01 - CN); F02B 77/04 (2013.01 - EP); F02D 15/02 (2013.01 - CN EP KR); F02D 29/02 (2013.01 - CN); F02B 2075/025 (2013.01 - CN); F02B 2075/1808 (2013.01 - CN); F02D 2700/03 (2013.01 - KR)
Citation (applicant)
- EP 2677141 A1 20131225 - WAERTSILAE NSD SCHWEIZ AG [CH]
- JP S61197731 A 19860902 - NAGAI SUSUMU, et al
- EP 2687707 A2 20140122 - WAERTSILAE NSD SCHWEIZ AG [CH]
- EP 2801713 A1 20141112 - WÄRTSILÄ SCHWEIZ AG [CH]
Citation (search report)
- [X] DE 102014220424 A1 20160414 - BOSCH GMBH ROBERT [DE]
- [X] US 2018058314 A1 20180301 - OKAMOTO NAOKI [JP], et al
- [X] US 2018187594 A1 20180705 - OKAMOTO KAZUHIKO [JP], et al
- [A] GB 288790 A 19280419 - NAPIER & SON LTD, et al
- [A] EP 3296597 A1 20180321 - IHI CORP [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3748145 A1 20201209; EP 3748145 B1 20231206; CN 112049725 A 20201208; CN 112049725 B 20240503; DK 3748145 T3 20240129; JP 2020200826 A 20201217; KR 20200141004 A 20201217
DOCDB simple family (application)
EP 19178942 A 20190607; CN 202010268116 A 20200408; DK 19178942 T 20190607; JP 2020059258 A 20200330; KR 20200062376 A 20200525