Construction machine
US9290906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2012 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Apr 21, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2610/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
To provide a construct ion machine in which the temperature of a battery and aqueous urea within an aqueous urea tank can be prevented from rising and high stability can be secured in the vehicle body.A small turning type hydraulic excavator (1) including: a counterweight (6) disposed at the rear of a turning upperstructure (3) provided with a front work machine (4) in the front thereof; an engine (5a) disposed within an engine room (5) in front of the counterweight (6); a heat exchanger (15) exchanging heat with the engine (5a); a fan (16) introducing outside air from an intake port (5b) formed in the exterior of the engine room (5) into the engine room (5) to cool the heat exchanger (15); a tail pipe (20) disposed on the exterior of the engine room (5); an aqueous urea tank (12) storing aqueous urea that purifies the exhaust gas discharged from the engine (5a); and batteries (13a, 13b) supplying electric power to the engine (5a), wherein: both the aqueous urea tank (12) and the batteries (13a, 13b) are disposed on an upstream side of the heat exchanger (15) in a flow direction of the outside air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.