초록 ▼

A lined tubular system and method provides for the manipulation and control of annular fluids in channels (18) between the tubular (10) and the liner (17). This structure allows for profiling of the exterior wall of a liner such that one or more continuous channels are provided along the length of t

A lined tubular system and method provides for the manipulation and control of annular fluids in channels (18) between the tubular (10) and the liner (17). This structure allows for profiling of the exterior wall of a liner such that one or more continuous channels are provided along the length of the lined tubular system. The system may also include one or more non-crushable members or tubes between the liner's exterior surface and host tubular's interior surface. Rounded, granular particles or spacers in the annulus between the liner and host may provide an alternative path for fluid flow. The particles or spacers may be uniformly or randomly distributed in the annulus.

대표청구항 ▼

A lined tubular system and method provides for the manipulation and control of annular fluids in channels (18) between the tubular (10) and the liner (17). This structure allows for profiling of the exterior wall of a liner such that one or more continuous channels are provided along the length of t

A lined tubular system and method provides for the manipulation and control of annular fluids in channels (18) between the tubular (10) and the liner (17). This structure allows for profiling of the exterior wall of a liner such that one or more continuous channels are provided along the length of the lined tubular system. The system may also include one or more non-crushable members or tubes between the liner's exterior surface and host tubular's interior surface. Rounded, granular particles or spacers in the annulus between the liner and host may provide an alternative path for fluid flow. The particles or spacers may be uniformly or randomly distributed in the annulus. d pintle and having a skirt surrounding said bearing, said skirt having a free edge formed to slidably retain said shield on said bearing; and c) a spring disposed between said bearing and said splash shield for urging said bearing against said valve body during operation of said valve. 2. A subassembly module in accordance with claim 1 wherein said bearing has a circumferential flange having a first axial face for sealably mating with said valve body, means for receiving said formed free edge of said skirt, and means for receiving said spring. 3. A subassembly module in accordance with claim 1 wherein said splash shield has an inwardly- and axially-extending radial flange surrounding said axial opening. 4. A subassembly module in accordance with claim 3 wherein said radial flange extends axially towards said valve body when said valve is fully assembled. 5. A subassembly module in accordance with claim 3 wherein said radial flange extends axially away from said valve body when said valve is fully assembled. 6. A subassembly module in accordance with claim 1 wherein said free edge of said skirt is turned radially inwards to engage said bearing. 7. An exhaust gas recirculation valve for use in an internal combustion engine, said valve having a valve body and a valve pintle extending from said valve body, comprising a bearing module having a bearing mountable on said valve body for receiving and guiding said pintle, a bearing splash shield having an axial opening for receiving said pintle and having a skirt surrounding a portion of said bearing and having a free edge formed to be slidably retained on said bearing, and a spring disposed between said bearing and said splash shield for urging said bearing against said valve body during operation of said valve. 8. An internal combustion engine, comprising: a) an intake manifold having a first port therein; b) an exhaust manifold having a second port therein; and c) an exhaust gas recirculation valve connected between said first and second ports, said valve having a valve body and a valve pintle extending from said valve body, comprising a bearing module having a bearing mountable on said valve body for receiving and guiding said pintle, a bearing splash shield having an axial opening for receiving said pintle and having a skirt surrounding a portion of said bearing and having a free edge formed to be slidably retained on said bearing, and a spring disposed between said bearing and said splash shield for urging said bearing against said valve body during operation of said valve.