초록 ▼

An in line fluid pressure regulating and pressure relief device having a regulator body with an axial bore therethrough with an inlet chamber conectable to a source of fluid under pressure and an outlet chamber connect able to a device requiring fluid under substantially constant pressure. A fluid p

An in line fluid pressure regulating and pressure relief device having a regulator body with an axial bore therethrough with an inlet chamber conectable to a source of fluid under pressure and an outlet chamber connect able to a device requiring fluid under substantially constant pressure. A fluid pressure regulator located in the regulator body maintains fluid pressure at the outlet chamber at a constant predetermined level. A bleed piston located in the axial bore between the inlet chamber and to the pressure regulating means loses contact with said pressure regulating piston when the pressurized fluid source is removed from the regulator or drops below a certain level relieving substantially all pressure in said exit chamber and any attached device passively rendering the device inoperable.

대표청구항 ▼

[ What is claimed is:] [1.] An in line fluid pressure regulating and release apparatus comprising:a regulator body having an axial bore therethrough; an inlet chamber communicating with a first end of said axial bore said inlet chamber connectable to a means for generating pressurized fluid;an outle

[ What is claimed is:] [1.] An in line fluid pressure regulating and release apparatus comprising:a regulator body having an axial bore therethrough; an inlet chamber communicating with a first end of said axial bore said inlet chamber connectable to a means for generating pressurized fluid;an outlet chamber communicating with a second end of said axial bore, said outlet chamber connectable to a device requiring said pressurized fluid at a substantially constant pressure;a fluid pressure regulation means having an inlet end for receiving said pressurized fluid and communicating said pressurized fluid therethrough to said outlet chamber at a substantially constant pressure, said fluid pressure regulating means located in said axial bore adjacent to said outlet chamber,a fluid pressure relief means slidably located in said axial bore between said inlet chamber and said fluid pressure regulation means;said fluid pressure relief means having a biased position wherein said fluid pressure relief means is biased toward said fluid pressure regulation means when fluid pressure communicated to said fluid pressure relief means from said inlet chamber exceeds fluid pressure communicated to said fluid pressure relief means from said outlet chamber;a cooperative releasable seal formed between said pressure relief means and said pressure regulation means, said cooperative releasable seal capable of formation only when said pressure relief means is in said biased position, said cooperative releasable seal being required to maintain the flow of said pressurized fluid through said fluid pressure regulation means to said outlet chamber at said substantially constant pressure, and,said fluid pressure relief means having bleed position incapable of forming said cooperative releasable seal when fluid pressure communicated thereto from said outlet chamber exceeds fluid pressure from said inlet chamber whereby fluid pressure from said inlet chamber will flow to said outlet chamber at a substantially constant pressure when fluid pressure in said inlet chamber is higher than said outlet chamber and fluid pressure in said outlet chamber and any device connected thereto is passively vented through said inlet chamber when said pressure generating means is removed therefrom.