US 12,487,014 B1
Bulbless thermostatic expansion valve containing a thermal separation slot
Eric R. Coyle, Chesterfield, MO (US)
Assigned to Parker-Hannifin Corporation, Cleveland, OH (US)
Filed by Parker-Hannifin Corporation, Cleveland, OH (US)
Filed on Mar. 11, 2024, as Appl. No. 18/601,184.
Claims priority of provisional application 63/490,850, filed on Mar. 17, 2023.
Int. Cl. F25B 41/335 (2021.01)
CPC F25B 41/335 (2021.01) [F25B 2700/1933 (2013.01); F25B 2700/21151 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A bulbless thermostatic expansion valve comprising:
a valve body having an inlet and an outlet, and a suction line that is fluidly isolated from the inlet and the outlet;
a valve member movable relative to the valve body for controlling flow of an operating fluid through the valve body from the inlet to the outlet; and
a power element mounted to the valve body adjacent to the suction line and that senses temperature and pressure of the suction line;
wherein the valve body has a thermal separation slot that is positioned between the inlet and the suction line on an inlet side of the valve body to provide thermal separation of the power element relative to the inlet.