Heatable washer system which is intended for a motor vehicle

• US 6,247,653 B1
• Filed: 08/30/1999
• Issued: 06/19/2001
• Est. Priority Date: 09/04/1998
• Status: Expired due to Fees

• Current Assignee: Mannesmann VDO AG (Continental AG)
• Original Assignee: Mannesmann VDO AG (Continental AG)
• Inventors: Seyfarth, Lutz, Sieber, Roland
• Primary Examiner(s): Morris, Lesley D.
• Application Number:
  US09/385,327
• Time in Patent Office: 659 Days
• Field of Search: 239/284.1, 239/284.2
• US Class Current: 239/284.1
• CPC Class Codes: B60S 1/487 the liquid being heated nozzles provided with heating means B60S1/52
• CPC Class Codes: B60S 1/488 electrically
• CPC Class Codes: F01P 2060/00 Cooling circuits using auxiliaries
• CPC Class Codes: F01P 3/20 Cooling circuits not specific to a single part of engine or machine F01P3/22 takes precedence

Abstract

In a washer system (9) which is intended for a motor vehicle, a delivery unit (1) is used to supply a washer nozzle (11) which is connected by a pipe element (10). To protect against damage at low ambient temperatures, a heating element (5) is arranged on a housing (7) of a pump chamber (3) of the delivery unit (1) and thus makes it possible for the washer fluid situated in the pump chamber (3) to be heated rapidly and in a specific manner.

Claims

1. A heatable washer system which is intended for a motor vehicle and comprises a heating element and a delivery unit for washer fluid, wherein the delivery unit is heated by means of the heating element, the delivery unit has a pump chamber which is encircled by the heating element, and the heating element is heated electrically.

2. The washer system as claimed in claim 1, wherein the heating element comprises a resistance heating wire.

3. The washer system as claimed in claim 1, wherein the heating element is arranged on the periphery of the delivery unit.

4. A heatable washer system which is intended for a motor vehicle and comprises a heating element and a delivery unit for washer fluid, wherein the delivery unit is heated by means of the heating element, the delivery unit has a pump chamber which is encircled by the heating element, and the delivery unit has a housing which has a groove receiving the heating element.

5. A heatable washer system which is intended for a motor vehicle and comprises a heating element and a delivery unit for washer fluid, wherein the delivery unit is heated by means of the heating element, the delivery unit has a pump chamber which is encircled by the heating element, and the heating element is fixed on the delivery unit by a clip connection.

6. A heatable washer system which is intended for a motor vehicle and comprises a heating element and a delivery unit for washer fluid, wherein the delivery unit is heated by means of the heating element, the delivery unit has a pump chamber which is encircled by the heating element, and the delivery unit includes a connected pipe element, and the heating element serves also to heat the connected pipe element.