초록 ▼

A solenoid controlled proportional flow valve comprises an operating solenoid having an axially extending coil, and a valve body having an axially extending cavity with a fluid inlet passage, a fluid outlet passage and a valve seat surrounding one of the passages on one end wall of the cavity. A val

A solenoid controlled proportional flow valve comprises an operating solenoid having an axially extending coil, and a valve body having an axially extending cavity with a fluid inlet passage, a fluid outlet passage and a valve seat surrounding one of the passages on one end wall of the cavity. A valve plunger is axially movable within the cavity for movement of one end wall thereof toward and away from the valve seat. Biasing means is interposed between the opposite ends of the cavity and plunger, the biasing means including a generally conical abutment having a rounded free end preloaded in contact with a resilient deformable elastomeric spring having a diameter at all times greater than the portion of said conical abutment member in contact therewith. The biasing means normally maintains the valve plunger in contact with the valve seat, and the solenoid moves the plunger away from the valve seat in proportion to the flow of current therethrough. A connector permits the valve (as well as other valves of variant design) to be connected to a printed circuit board, with all pneumatic and electrical connections to the valve on the side of the board remote from the valve.

대표청구항 ▼

A solenoid controlled proportional flow valve, comprising an operating solenoid having an axially extending coil, a valve body having an axially extending cavity with a fluid inlet passage, a fluid outlet passage and a valve seat surrounding one of said passages on one end wall of said cavity, a val

A solenoid controlled proportional flow valve, comprising an operating solenoid having an axially extending coil, a valve body having an axially extending cavity with a fluid inlet passage, a fluid outlet passage and a valve seat surrounding one of said passages on one end wall of said cavity, a valve plunger axially movable within said cavity for movement of one end wall thereof toward and away from said valve seat, biasing means interposed between the opposite ends of said cavity and plunger, said biasing means including an abutment preloaded in contact with a resilient deformable elastomeric spring having a dimension at all times greater than the portion of said abutment in contact therewith, said biasing means normally maintaining said valve plunger in contact with said valve seat and said solenoid moving said plunger away from said valve seat in proportion to the flow of current therethrough.