Vehicle cab ventilating system

US5860856A · kind A · utility

Assignee

• Deere & Company · US

Inventors

• Michael Teich · Mannheim, DE
• Juergen Wagner · Nittendorf, DE

Key dates

• Filing date: Jul 1, 1997
• Grant date: Jan 19, 1999
• Expiry date: Jul 1, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60H3/0616
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A ventilating system for a vehicle cab includes a blower which draws fresh air from the exterior of the cab into the interior of the cab. A filter housing is inserted generally transverse to the direction of air flow through a service opening in the ventilating system into the channel through which the fresh air flows. The filter housing encloses a fresh air filter. The blower also draws recirculating air from the interior of the cab through a recirculating air intake opening and blows it back through a recirculating air filter into the cab through an outlet opening. The recirculating air filter is also mounted in the filter housing. A filter insert includes a filter housing which contains the fresh air filter and the recirculating air filter, which are adjacent each other on either side of a separating wall, fresh air and recirculating air are separately filtered.