초록 ▼

An expansion/check valve assembly is provided that includes a reverse flow rate adjustment device that allows for adjustment of the flow rate of a fluid flowing reversely through an open check valve port. The adjustment device includes a flow rate control member within the valve body and an adjustme

An expansion/check valve assembly is provided that includes a reverse flow rate adjustment device that allows for adjustment of the flow rate of a fluid flowing reversely through an open check valve port. The adjustment device includes a flow rate control member within the valve body and an adjustment member accessible outside of the valve body. The flow rate control member is operably coupled to the adjustment member and the adjustment member preferably includes a visual indicator viewable outside of the valve body to indicate the position of the flow rate control member. When installed in a refrigeration system at the inlet of the evaporator, the reverse flow rate adjustment device can be adjusted to control defrost conditions.

대표청구항 ▼

1. A valve assembly comprising:a valve body defining a forward flow path between an inlet and an outlet and through an expansion port and defining a reverse flow path between the outlet and the inlet and through a check valve port; an expansion valve device that opens and closes the expansion port t

1. A valve assembly comprising:a valve body defining a forward flow path between an inlet and an outlet and through an expansion port and defining a reverse flow path between the outlet and the inlet and through a check valve port; an expansion valve device that opens and closes the expansion port to control flow rate through the forward flow path; a check valve device that closes the check valve port to close the reverse flow path and that opens the check valve port to open the reverse flow path; and a reverse flow rate adjustment device that controls flow rate through the reverse flow path when the check valve port is opened.