Global Patent Index - EP 1144809 A3

EP 1144809 A3 2002-11-13 - IMPROVEMENTS IN ROTARY VALVES

Title (en)

IMPROVEMENTS IN ROTARY VALVES

Title (de)

ROTIERENDES VENTIL

Title (fr)

AMELIORATIONS RELATIVES A DES VALVES ROTATIVES

Publication

EP 1144809 A3 (EN)

Application

EP 99949104 A

Priority

  • GB 9903033 W
  • GB 9820923 A

Abstract (en)

[origin: WO0019066A2] There is disclosed an improved rotary valve (5), and to an internal combustion engine including such a valve (5). In internal combustion engines use of poppet valves has predominated due to an inability of rotary valves to perform reliably without excessive oil consumption. However, the invention provides an improved valve (5) for use with an internal combustion engine (10) comprising at least one cylinder (15) having a reciprocable piston (50), the valve (5) comprising a valve seat (20) having at least one inlet (80) and/or at least one outlet (90), a rotatable valve member (60) mountable within the valve seat (20) at a compression end of one of the at least one cylinders (15) and having at least one orifice (70) extending therethrough between the valve seat (20) and an interior of the cylinder (15), wherein there is provided a seal member(s), (25a, 25b, 25c) between the valve member (60) and the at least one inlet (80) and/or the at least one outlet (90).

IPC 1-7 (main, further and additional classification)

F01L 7/02

IPC 8 full level (invention and additional information)

F01L 7/02 (2006.01); F01L 7/16 (2006.01)

CPC (invention and additional information)

F01L 7/16 (2013.01); F01L 7/028 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0019066 A2 20000406; WO 0019066 A3 20020711; AU 6210399 A 20000417; EP 1144809 A2 20011017; EP 1144809 A3 20021113; GB 0107797 D0 20010516; GB 2362925 A 20011205; GB 9820923 D0 19981118

INPADOC legal status


2003-06-25 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20021006

2002-11-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-11-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI

2002-11-13 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7F 01L 7/02 A

2002-05-08 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020326

2001-10-17 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010404

2001-10-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-10-17 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI

2001-10-17 [XX] MISCELLANEOUS:

- Free text: DERZEIT SIND DIE WIPO-PUBLIKATIONSDATEN A3 NICHT VERFUEGBAR.