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1. US20080223319 - Cooling structure of construction machine

Office
United States of America
Application Number 11722548
Application Date 26.12.2005
Publication Number 20080223319
Publication Date 18.09.2008
Grant Number 7841314
Grant Date 30.11.2010
Publication Kind B2
IPC
F02B 77/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
77Component parts, details, or accessories, not otherwise provided for
04Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
F02B 77/13
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
77Component parts, details, or accessories, not otherwise provided for
11Thermal or acoustic insulation
13Acoustic insulation
CPC
E02F 9/0866
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
08Superstructures; Supports for superstructures
0858Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
0866Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
F01P 5/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
5Pumping cooling-air or liquid coolants
02Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
06Guiding or ducting air to, or from, ducted fans
F01P 11/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
11Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
10Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
F01P 11/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
11Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
12Filtering, cooling, or silencing cooling-air
Applicants Kobelco Construction Machinery Co., Ltd.
Inventors Nakashima Hajime
Taniuchi Tomoya
Kimura Yasumasa
Kinoshita Shinichi
Agents Oblon, Spivak, McClelland, Maier &; Neustadt, L.L.P.
Priority Data 2004377801 27.12.2004 JP
2004377802 27.12.2004 JP
Title
(EN) Cooling structure of construction machine
Abstract
(EN)

To improve soundproof performance on an air intake side of a cooling structure of a construction machine without enlarging an air intake chamber. An air intake chamber is provided on the air intake side of a heat exchanger in an engine room, and a first air intake port is formed in a top face of the air intake chamber. In the air intake chamber, a duct independently formed as a shield member is disposed so as to partition the air intake chamber into two chambers, and also such that the core surface of the heat exchanger is enclosed airtightly from the surrounding atmosphere. A second air intake port is formed in the duct; thereby, the air intake chamber is constituted in a doubled duct structure, and air sucked from the first air intake port is guided through an air intake passage to the core surface of the heat exchanger, the air intake passage being bent so as to be roughly L-shaped.