IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0679369
(2009-02-17)
|
등록번호 |
US-8550198
(2013-10-08)
|
우선권정보 |
JP-2008-41633 (2008-02-22) |
국제출원번호 |
PCT/JP2009/052675
(2009-02-17)
|
§371/§102 date |
20100322
(20100322)
|
국제공개번호 |
WO2009/104592
(2009-08-27)
|
발명자
/ 주소 |
- Isaka, Wataru
- Tanaka, Nozomu
|
출원인 / 주소 |
- Hitachi Construction Machinery Co., Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
9 |
초록
▼
In a heat exchanger cover (17) covering upper sides of heat exchanger (13), an inlet port (21) is provided on a left side which is an upstream side of cooling air, and one exhaust port (22) for exhausting the cooling air which has passed through the heat exchanger (13) is provided on a right side op
In a heat exchanger cover (17) covering upper sides of heat exchanger (13), an inlet port (21) is provided on a left side which is an upstream side of cooling air, and one exhaust port (22) for exhausting the cooling air which has passed through the heat exchanger (13) is provided on a right side opposite to this inlet port (21). An engine cover (15) is provided with another exhaust port (23) at a position opposing the one exhaust port (22) in a left-right direction. The cooling air which has passed through the heat exchanger (13) can be exhausted horizontally from the exhaust port (22) provided in the heat exchanger cover (17) toward the exhaust port (23) provided in the engine cover (15).
대표청구항
▼
1. A construction machine comprising: a vehicle frame which serves as a support structure and on a front side of which a working mechanism is mounted;a counterweight disposed on a rear side of said vehicle frame;an engine mounted on said vehicle frame by being located on a front side of said counter
1. A construction machine comprising: a vehicle frame which serves as a support structure and on a front side of which a working mechanism is mounted;a counterweight disposed on a rear side of said vehicle frame;an engine mounted on said vehicle frame by being located on a front side of said counterweight;a muffler device to discharge exhaust gases from said engine;a hydraulic pump disposed on one side, in a left-right direction, of said engine and driven by said engine, said muffler being located above said hydraulic pump;a cooling fan for said engine and located on an opposite side, in the left-right direction, to said hydraulic pump and being operable to suck cooling air from the outside of the construction machine;a heat exchanger disposed in face-to-face relation to said cooling fan by being located upstream of said cooling fan in a flowing direction of the cooling air; andan exterior cover disposed on said vehicle frame to cover mounted equipment including said engine, said hydraulic pump, said muffler device and said heat exchanger,wherein:said exterior cover includes an engine cover disposed over said engine in an un-openable state, a heat exchanger cover which is positioned over said heat exchanger and which heat exchanger cover is openable to expose said heat exchanger and further which is in juxtaposition with said engine cover in the left-right direction, which heat exchanger cover has an upper surface protruding upwardly from a peripheral portion of said heat exchanger cover above an upper surface of said engine cover, and a side cover disposed in face-to-face relation to said heat exchanger and being located on a side of said vehicle frame,said heat exchanger cover having a heat exchanger cover air inlet port located on a side of said peripheral portion of said heat exchanger cover to suck outside air as cooling air, and one heat exchanger cover exhaust port located on a side of said heat exchanger cover remote from said heat exchanger cover inlet port to allow the cooling air which has passed through said heat exchanger to be exhausted in a horizontal direction above said engine cover,an engine cover exhaust port for exhausting the cooling air disposed on said engine cover at a position further away from said engine in a left-right direction than said heat exchanger cover exhaust port, and wherein said engine cover exhaust port is disposed above said hydraulic pump, said heat exchanger cover exhaust port and said engine cover exhaust port being arranged in juxtaposition with each other in the left-right direction,a fire wall positioned between said engine and said hydraulic pump, said fire wall being disposed within said exterior cover, anda flow guide plate on said fire wall and having an inclined plate to guide the cooling air diagonally upward toward said engine cover exhaust port, to make the cooling air, which has passed around said engine and which is exhausted from said engine cover exhaust port, flow in a direction away from said heat exchanger cover inlet port, said flow guide plate being disposed above, and covering, said muffler device. 2. A construction machine according to claim 1, wherein said heat exchanger cover has a vertical surface which extends substantially vertically downward from said protruding upper surface toward an upper surface of said engine cover, and said one exhaust port is disposed in said vertical surface. 3. A construction machine according to claim 1, wherein said counterweight is constituted by a central weight portion having a large height dimension and left and right lateral weight portions which are curved and extended toward the front side from said central weight portion in the left-right direction, and the rear side of said heat exchanger cover is disposed on an upper surface side of said central weight portion. 4. A construction machine according to claim 1, further comprising an automotive lower traveling structure, an upper revolving structure which is swingably mounted on said lower traveling structure, and said working mechanism which is liftably mounted at a central portion in the left-right direction on a front side of said upper revolving structure, said vehicle frame is a revolving frame which constitutes said upper revolving structure and on a front side of which said working mechanism is mounted, said revolving frame being disposed with a cab located laterally of said working mechanism and having an operator's seat in which an operator is seated, said engine being located on the front side of said counterweight and being disposed transversely on said revolving frame in such a manner as to extend in the left-right direction, and said heat exchanger being disposed on a rear side of said cab between said engine and said side cover.
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