EP 1776514 A1 20070425 - GAS EXCHANGE CONTROL MECHANISM FOR AN OPPOSED-PISTON ENGINE
Title (en)
GAS EXCHANGE CONTROL MECHANISM FOR AN OPPOSED-PISTON ENGINE
Title (de)
GASWECHSELSTEUERUNG FÜR GEGENKOLBENMOTOREN
Title (fr)
COMMANDE DE RENOUVELLEMENT DES GAZ POUR MOTEUR A PISTONS OPPOSES
Publication
Application
Priority
- EP 2005007250 W 20050705
- DE 102004032452 A 20040705
Abstract (en)
[origin: WO2006002982A1] The invention relates to a gas exchange control mechanism for an opposed-piston engine and allows to open and close annular inlet and outlet slots provided in the cylinder irrespective of the position of the pistons. For this purpose, the opposed pistons (7 and 8) shown in Fig. 2 at the internal dead center including the combustion chamber (17) are guided completely or partially during stroke in sliding sleeves (9 and 10) during operation of the engine so as to reciprocate mechanically, electrically, pneumatically or hydraulically in a linear manner. Said sliding sleeves are adapted to open and close the gas guide channels (13 and 14) located in the housing receiving the sliding sleeves. As shown here, the piston rings never travel across the gap of the sliding sleeve, or only when the slots are closed, depending on the position of the gas exchange channels in the area of the internal or external dead centers. The inventive arrangement avoids the problems known for piston port-controlled engines, e.g. oil being stripped off into the slots and piston rings bursting open.
IPC 8 full level
F01L 5/06 (2006.01); F02B 75/28 (2006.01)
CPC (source: EP US)
F01L 5/06 (2013.01 - EP US); F01L 7/04 (2013.01 - EP US); F02B 75/282 (2013.01 - EP US); F01L 1/30 (2013.01 - EP US)
Citation (search report)
See references of WO 2006002982A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 102004032452 A1 20060126; DE 202005021624 U1 20081218; EP 1776514 A1 20070425; JP 2008505282 A 20080221; US 2008115771 A1 20080522; US 7669560 B2 20100302; WO 2006002982 A1 20060112
DOCDB simple family (application)
DE 102004032452 A 20040705; DE 202005021624 U 20050705; EP 05755971 A 20050705; EP 2005007250 W 20050705; JP 2007519701 A 20050705; US 63056605 A 20050705