Engine cooling air passage for construction equipment
US6745860B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2001 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Jan 10, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2001/005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine cooling air passage for construction equipment, which is capable of reducing noise released from a cooling air exhaust port with back pressure of cooling air remaining low and making an engine room compact, is provided. To this end, in the engine cooling passage, a fan air diversion passage (53) of a predetermined length, which has a fan air diversion opening (53a) located near an outer periphery portion of a cooling fan (16) and taking in a cooling air blown by the cooling fan (16), at one end side, and an opening (53b) located near a lateral end portion of a counterweight (61) and discharging the cooling air taken in to an outside, at the other end side, is formed either in a front portion of or in front of the counterweight (61).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.