Thermal bypass valve

US10317918B2 · kind B2 · utility

Assignees

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US
• Dynalloy, Inc. · US

Inventors

• Xiujie Gao · Troy, US
• Kevin B. Rober · Big Rapids, US
• Marco A. Lopes · Rochester Hills, US
• Nancy L. Johnson · Northville, US
• Anthony L. Smith · Troy, US
• Nicholas W. Pinto, IV · Shelby Charter Township, US
• Richard J. Skurkis · Lake Orion, US
• Tyler P. Ownby · Tecate Mission Road, US

Key dates

• Filing date: May 5, 2017
• Grant date: Jun 11, 2019
• Expiry date: Jul 26, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D23/1333
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A thermal bypass valve includes a housing defining a bore along a longitudinal axis and having two inlet ports and two outlet ports; a cap disposed within the bore; a shuttle disposed within the bore and reversibly translatable towards and away from the cap along the longitudinal axis between a first fill position, a cooling position, and a bypass position; and an actuator configured for translating the shuttle along the longitudinal axis between the cooling position and the bypass position. The actuator is formed from a shape memory alloy and is transitionable between a first state and a second state in response to a temperature of the fluid.