US 11,915,866 B2
Enhanced safety coil for SOGAV
Gregory J. Brodsack, Loveland, CO (US); Timothy J. Farrow, Fort Collins, CO (US); Richard J. Way, Fort Collins, CO (US); Roger M. Kifer, Fort Collins, CO (US); Michael W. Hamernik, Johnstown, CO (US); and Christopher Dan Harrison, Fort Collins, CO (US)
Assigned to Woodward, Inc., Fort Collins, CO (US)
Filed by Gregory J. Brodsack, Loveland, CO (US); Timothy J. Farrow, Fort Collins, CO (US); Richard J. Way, Fort Collins, CO (US); Roger M. Kifer, Fort Collins, CO (US); Michael W. Hamernik, Johnstown, CO (US); and Christopher Dan Harrison, Fort Collins, CO (US)
Filed on Jul. 29, 2021, as Appl. No. 17/388,476.
Prior Publication US 2023/0031739 A1, Feb. 2, 2023
Int. Cl. H01F 5/02 (2006.01); H01F 7/08 (2006.01); H01F 7/128 (2006.01); F16K 31/06 (2006.01)
CPC H01F 7/081 (2013.01) [H01F 7/128 (2013.01); F16K 31/0675 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An enhanced safety coil for use in a solenoid operated gas admission valve (SOGAV), comprising:
a plastic encapsulation body having at least one body de-stress feature;
a coil wound on the plastic encapsulation body;
a sleeve forming an outermost side protective wall configured to accommodate the plastic encapsulation body and coil therewithin;
potting provided between the plastic encapsulation body and the sleeve to seal the coil therein; and
wherein the at least one body de-stress feature is configured to reduce at least one of a formation or a propagation of a crack through the potting to the coil.