EP 1344925 A4 20100915 - RECIPROCATING INTERNAL COMBUSTION ENGINE AND ITS OPERATING METHOD

Title (en)

RECIPROCATING INTERNAL COMBUSTION ENGINE AND ITS OPERATING METHOD

Title (de)

HUBKOLBENBRENNKRAFTMASCHINE UND IHRE ARBEITSWEISE

Title (fr)

MOTEUR ALTERNATIF A COMBUSTION INTERNE ET SON PROCEDE D'EXPLOITATION

Publication

EP 1344925 A4 20100915 (EN)

Application

EP 01982859 A 20011120

Priority

JP 0110113 W 20011120
JP 2000388296 A 20001221
JP 2001195348 A 20010627

Abstract (en)

[origin: EP1344925A1] A method of operating a reciprocating internal combustion engine reduces friction power loss in an indicated power to increase net power and to reduce brake specific fuel consumption. A reciprocating internal combustion engine having an output characteristic to generate a maximum indicated power (PM) at a first set engine speed (N1) is provided with a power reducing unit (26). The power reducing unit (26) reduces the output power of the reciprocating internal combustion engine when the engine speed exceeds a second set engine speed lower than the first set engine speed (N2) lower than the first set engine speed (N1) so that the reciprocating internal combustion engine generates a necessary indicate power (PS) at the second set engine speed (N2). A high engine speed range in an engine speed range (R) in which the engine speed of the reciprocating internal combustion engine varies is lower than an engine speed (N3) at which an equivalent conventional reciprocating internal combustion engine generates a necessary indicated power (PS) (Maximum indicated power (Pm). Friction power loss (PL) in an indicated power of the reciprocating internal combustion engine is smaller than that in the same indicated power of the equivalent conventional reciprocating internal combustion engine. So that net power is increased and brake specific fuel consumption is reduced. <IMAGE>

IPC 8 full level

B60W 10/02 (2006.01); B60W 10/04 (2006.01); B60W 10/06 (2006.01); B60W 10/10 (2006.01); B60W 10/11 (2012.01); F02D 17/02 (2006.01); F02D 29/00 (2006.01); F02D 31/00 (2006.01); F02D 35/00 (2006.01); F02D 37/02 (2006.01); F02D 41/14 (2006.01); F02D 41/32 (2006.01); F02D 45/00 (2006.01); F02N 15/02 (2006.01); F02P 5/15 (2006.01); F16D 43/18 (2006.01)

CPC (source: EP KR)

F02D 31/009 (2013.01 - EP); F02D 35/0046 (2013.01 - EP); F02D 37/02 (2013.01 - EP); F02D 41/1497 (2013.01 - EP); F02D 45/00 (2013.01 - KR); F02D 2041/2048 (2013.01 - EP); F02D 2250/18 (2013.01 - EP)

Citation (search report)

[E] EP 1174610 A2 20020123 - HONDA MOTOR CO LTD [JP]
[X] US 5445121 A 19950829 - KAI MANABU [JP]
[X] US 6148777 A 20001121 - MOTOSE HITOSHI [JP], et al
[X] US 5559703 A 19960924 - IWATA TORU [JP], et al
[X] GB 2279111 A 19941221 - DELCO ELECTRONICS CORP [US], et al
See references of WO 02052140A1

Designated contracting state (EPC)

DE ES FR GB GR IT

DOCDB simple family (publication)

EP 1344925 A1 20030917; EP 1344925 A4 20100915; AR 032206 A1 20031029; BR 0108515 A 20030415; BR 0108515 B1 20090505; CN 100408835 C 20080806; CN 1404549 A 20030319; JP 2002250245 A 20020906; JP 3642418 B2 20050427; KR 100761188 B1 20070921; KR 20020081335 A 20021026; MY 134561 A 20071231; TR 200201967 T1 20030521; TW 536581 B 20030611; WO 02052140 A1 20020704

DOCDB simple family (application)

EP 01982859 A 20011120; AR P010105937 A 20011220; BR 0108515 A 20011120; CN 01805214 A 20011120; JP 0110113 W 20011120; JP 2001195348 A 20010627; KR 20027010788 A 20020819; MY PI20015683 A 20011213; TR 200201967 T 20011120; TW 90129711 A 20011130