Control device for the coolant flow in a cooling circuit of an internal combustion engine

US10359138B2 · kind B2 · utility

Assignee

• BorgWarner Ludwigsburg GmbH · DE

Inventors

• Bernd Bareis · Mutlangen, DE
• Markus Auer · Graz, AT
• Christian Herrmann · Hergensweiler, DE
• Nicolai Halder · Stuttgart, DE

Key dates

• Filing date: May 1, 2017
• Grant date: Jul 23, 2019
• Expiry date: Jan 12, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01P2007/143
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

This disclosure pertains to a control device for the coolant flow in a cooling circuit of an internal combustion engine with the following characteristics: a housing with an inlet opening, an outlet opening and a movable control element for varying the flow-through cross section of the channel; an annular seal arrangement comprising a sealing frame and a sealing ring is seated between a sealing surface of the housing and a sealing surface of the control element. According to this disclosure, it is proposed that the sealing ring rests against a plane sealing surface of the housing in a sealing fashion and meets this plane sealing surface along a contact line that encloses a first surface area. Depending on the flow direction through the seal arrangement, the sealing ring features a surface section that has a defined circumference referred to the length of the contact line between the sealing ring and the housing. The sealing surface of the sealing frame is perpendicularly projected into a plane of projection and thereby has an inner and/or outer boundary line, which respectively encloses a second or third surface area that has a certain relation to the first surface area.