Construction machine
AssigneeHitachi Construction Machinery Tierra Co., Ltd.
InventorsAkito TSUKAGUCHI, Daisuke YAMAMOTO, Daisuke YAMAMOTO
Life of this patent
Estimating the term…
Abstract
A hydraulic excavator (1) includes a cooling fan (8A), a heat exchanger (21) to which cooling air from the cooling fan (8A) is supplied, an air conditioner unit (24) provided inside a cab (10), and an outside air introducing duct (25) for introducing outside air to the air conditioner unit (24). An outside air inlet port (25B) of the outside air introducing duct (25) opens toward the upstream side of the flow of the cooling air inside a heat exchanger chamber (23) into which the cooling air to be supplied to the heat exchanger (21) flows.
Claims3
A construction machine comprising:
- a cooling fan that generates cooling air;
- a heat exchanger that cools fluid by the cooling air supplied from the cooling fan;
- an exterior cover that covers the cooling fan and the heat exchanger to form a heat exchanger chamber and is provided with a vent through which the cooling air is communicated with a vehicle body outside;
- a cab that forms an operator's room;
- an air conditioner unit that supplies conditioned air into the cab;
- and
- a duct that is provided with an outside air inlet port and introduces outside air taken in from the outside air inlet port to the air conditioner unit, characterized in that:
- the outside air inlet port is provided inside the heat exchanger chamber and is located to open toward an upstream side of the flow of the cooling air.
Dependencies are inferred from the claim text.