Construction machine
First Claim
1. A construction machine comprising:
- an upper rotating body mounted rotatably on a lower traveling body;
an engine and hydraulic device disposed in the upper rotating body;
heat exchanger disposed in the upper rotating body to cool said engine and said hydraulic device, said upper rotating body having a maintenance passage for maintenance of the engine and the hydraulic device, with an intake port and an exhaust port being formed in said maintenance passage; and
a cooling device disposed face to face with said intake port to send air to said heat exchanger.
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Accused Products
Abstract
In a construction machine comprising an engine, hydraulic device, and heat exchanger for cooling the engine and the hydraulic device, which are all disposed in an upper rotating body of the construction machine, there is formed a maintenance passage along which maintenance portions of the engine and the hydraulic device are disposed so as to cross the upper rotating body. Exhaust air from cooling fans for sending air to the heat exchanger is discharged to the exterior of the machine body through the passage. Thus, the passage is utilized as an exhaust air passage for the heat exchanger, whereby it is possible to provide a construction machine improved in cooling efficiency for the heat exchanger.
33 Citations
13 Claims
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1. A construction machine comprising:
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an upper rotating body mounted rotatably on a lower traveling body;
an engine and hydraulic device disposed in the upper rotating body;
heat exchanger disposed in the upper rotating body to cool said engine and said hydraulic device, said upper rotating body having a maintenance passage for maintenance of the engine and the hydraulic device, with an intake port and an exhaust port being formed in said maintenance passage; and
a cooling device disposed face to face with said intake port to send air to said heat exchanger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification