EP 2222941 A1 20100901 - SEAL FOR A ROTARY VALVE FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
SEAL FOR A ROTARY VALVE FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
DICHTUNG FÜR EINEN DREHSCHIEBER FÜR EINEN VERBRENNUNGSMOTOR
Title (fr)
JOINT D'ÉTANCHÉITÉ POUR UNE VANNE ROTATIVE POUR UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- GB 2008050929 W 20081010
- GB 0720009 A 20071012
Abstract (en)
[origin: GB2453593A] A gas seal between a port (10, 12, fig.1) of a rotary valve (7) and a port 8 in a combustion chamber 6 of a rotary valve engine comprises gas channel means, eg a circular groove 15, which is supplied with gas under pressure to form a turbo valve 26 surrounding the port 8. Compression means creates a pressure in the gas channel means greater than a pressure in the combustion chamber 6 during a compression stroke and a power stroke of the engine. The pressurised air may be supplied to the groove 15 by a crankshaft-driven compressor or by crankcase compression charging an air storage chamber (21, fig.6). The air is forced tangentially, eg by a turbo valve injector 25, into the groove 15 where it circulates at high speed and at a pressure higher than that in the combustion chamber 6. The rotary valve rotor may be water-cooled.
IPC 8 full level
CPC (source: EP GB US)
F01L 7/021 (2013.01 - EP US); F01L 7/024 (2013.01 - EP US); F01L 7/16 (2013.01 - EP GB US); F01L 2820/01 (2013.01 - EP US); F01N 3/32 (2013.01 - EP US); F02B 21/02 (2013.01 - EP US); F02B 2075/027 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
GB 0720009 D0 20071121; GB 2453593 A 20090415; AU 2008309310 A1 20090416; CN 101896695 A 20101124; EP 2222941 A1 20100901; JP 2011501012 A 20110106; KR 20100080558 A 20100708; MX 2010003996 A 20100914; TW 200928077 A 20090701; US 2010236514 A1 20100923; WO 2009047566 A1 20090416
DOCDB simple family (application)
GB 0720009 A 20071012; AU 2008309310 A 20081010; CN 200880120674 A 20081010; EP 08806745 A 20081010; GB 2008050929 W 20081010; JP 2010528487 A 20081010; KR 20107010500 A 20081010; MX 2010003996 A 20081010; TW 97138693 A 20081008; US 68266808 A 20081010