Method and apparatus providing auxiliary cabin cooling
US8919140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2012 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jul 11, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/00378
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A cooling system for a machine having an engine and an operator cabin includes a primary air conditioning unit, an auxiliary air conditioning unit, an electrical powering unit configured to electrically power the auxiliary air conditioning unit, a sensor configured to generate a signal indicative of a temperature within the operator cabin, and a controller in communication with the primary air conditioning unit, the auxiliary air conditioning unit, and the sensor. The controller selectively activates the primary air conditioning unit and the auxiliary air conditioning unit.When the primary air conditioning unit is activated, a timer is started to determine the elapsed time during which the temperature within the operator's cabin exceeds the acceptable range of desired temperature, and the auxiliary unit is activated when the elapsed time exceeds a threshold time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.