发明名称 Valve with operation parameter set at assembly and pump using same
摘要 <p>A valve (32,40) is assembled by telescoping a first body component (50,71) relative to a second body component (51,72) until reaching a relative position that corresponds to a predetermined valve operation parameter, such as a valve opening pressure. The first body component (50,71) is then fixed with respect to the second body component (51, 72) at the relative position, such as by laser welding. The present invention finds potential application as a cartridge valve for a pump (11), such as a pressure relief valve (32) and/or pressure reduction valve (40). The relative positioning control over the body components (50,51,71,72) de-sensitizes valve operation from variations in valve components, such as variations attributable to geometrical tolerances. <IMAGE></p>
申请公布号 EP1380780(A3) 申请公布日期 2004.02.04
申请号 EP20030011802 申请日期 2003.05.26
申请人 CATERPILLAR INC. 发明人 DAVIS, WILLIAM M.;MICHELS, RYAN P.;O'CONNOR, CASEY C.
分类号 F04B49/24;F16K17/04;(IPC1-7):F16K17/04 主分类号 F04B49/24
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