| Patent Number |
Title Of Patent |
Date Issued |
| 7478671 |
Heating apparatus for cabin of construction equipment |
January 20, 2009 |
| A heating apparatus for a cabin of a construction equipment in which hot air ejected from an oil cooler is used for heating in the winter while it is ejected out in the summer, to maximize cooling or heating efficiency of the cabin of the construction equipment. The heating apparatus for |
| 7478531 |
Hydraulic circuit for heavy construction equipment |
January 20, 2009 |
| A hydraulic circuit for heavy construction equipment to reduce a speed of a swing apparatus while a working apparatus such as a boom is concurrently operated has a work control valve which controls a working apparatus cylinder; a confluence valve which combines a hydraulic fluid of t |
| 7461625 |
Lubricant recovering apparatus for heavy construction equipment |
December 9, 2008 |
| A lubricant recovering apparatus is disclosed, which can process lubricant collected in a drain pipeline due to an oil slobbering phenomenon occurring in a diesel engine. The lubricant recovering apparatus includes a tail pipe connected to an engine of the heavy construction equipment |
