Air-conditioning system for vehicles

US5050486A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Klaus Arold · Sindelfingen, DE
• Heinz Koukal · Sindelfingen, DE
• Gernot Karioth · Sindelfingen, DE
• Hans Trube · Herrenberg, DE

Key dates

• Filing date: Aug 2, 1990
• Grant date: Sep 24, 1991
• Expiry date: Aug 2, 2010

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60H2001/00164
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In an air-conditioning system for vehicles, with a blower, evaporator, heat exchanger and air distributor box with air-outflow ports for at least one middle nozzle and for side nozzles, the air distributor box is connected directly by means of its inlet cross-section to the evaporator. The heat exchanger is arranged aproximately centrally in the air distributor box so as to subdivide the latter into a front and a rear space portion. An air-guide connection piece extends from the front space portion which leads to the middle nozzle and which is connected to the front space portion via a cold-air scoop flap and is in communication with the rear space portion via two bypass channels, in each of which a temperature control flap is arranged. Air-outflow ports for the side nozzles are arranged in the bypass channels. Thus, in the "maximum cooling" mode, cold air passes directly from the front space portion of the air distributor box into the middle and side nozzles and improves the cooling of the passenger space.