Patent ID: 9733028
Date: 2017-08-15
CPC Classifications: F16K,F28F,Y10T

Claim:
1. A valve assembly disposed in a housing, the valve assembly having a primary inlet, a bypass inlet, and an outlet, the valve assembly comprising: an outer portion; a hollow shaft disposed within the outer portion and translatable from a first position to a second position; a memory metal alloy (MMA) spring coupled to the shaft and the outer portion, the MMA spring being configured to expand and move the shaft from the first position to the second position in response to a temperature of a fluid flow at the bypass inlet or the outlet; a valve head coupled to the shaft and adapted to be biased within the outer portion, the valve head being configured to close the bypass inlet in the first position and to allow fluid to enter the bypass inlet in the second position, and configured to transfer fluid from the bypass inlet into the hollow shaft so that the fluid can exit the valve via the outlet, wherein the valve head includes a plurality of valve head holes circumferentially disposed around the hollow shaft and formed axially through the valve head.