EP 2148012 A1 20100127 - Noise silencer for construction equipment
Title (en)
Noise silencer for construction equipment
Title (de)
Schalldämpfer für Baumaschinen
Title (fr)
Silencieux pour équipement de construction
Publication
Application
Priority
KR 20080071088 A 20080722
Abstract (en)
A noise silencer for construction equipment is used to minimize outward propagation of noises generated from an engine room (11). The noise silencer is mounted in air intake (18) and/or discharge openings (19) of an engine room, and includes a frame (12) mounted in the one of the air intake and discharge openings of the engine room, and noise damping members (15) fixed to the frame at uniform intervals, and each including a first member (13), which is disposed inside the engine room in a horizontal direction such that cooling air introduced from outside to inside of the engine room by operation of a cooling fan (20) smoothly flows, and a second member (14), which is integrally formed with the first member and is disposed outside the engine room so as to be inclined upwardly at a predetermined inclination.
IPC 8 full level
CPC (source: EP KR US)
E02F 9/00 (2013.01 - EP KR US); E02F 9/0866 (2013.01 - EP US); F01P 5/02 (2013.01 - KR); F01P 11/10 (2013.01 - EP US); F01P 11/12 (2013.01 - EP US)
Citation (search report)
- [XY] JP 2008037343 A 20080221 - CATERPILLAR MITSUBISHI LTD
- [Y] EP 1635049 A1 20060315 - KOBELCO CONSTR MACHINERY LTD [JP]
- [Y] US 3923114 A 19751202 - SUZUKI YASUO
- [Y] JP H11247228 A 19990914 - HITACHI CONSTRUCTION MACHINERY
- [Y] US 3762489 A 19731002 - PROKSCH F, et al
- [Y] JP 2000016094 A 20000118 - HITACHI CONSTRUCTION MACHINERY
- [Y] JP 2007055534 A 20070308 - KOMATSU MFG CO LTD
- [A] JP H09195771 A 19970729 - SUMITOMO CONSTR MACH
- [A] JP H0960521 A 19970304 - KANZAKI KOKYUKOKI MFG CO LTD
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 MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2148012 A1 20100127; CN 101644180 A 20100210; JP 2010024824 A 20100204; KR 20100010203 A 20100201; US 2010018798 A1 20100128
DOCDB simple family (application)
EP 09008928 A 20090708; CN 200910164758 A 20090722; JP 2009168691 A 20090717; KR 20080071088 A 20080722; US 50431709 A 20090716