| 摘要 |
<p>The pressure sensitive valve is designed to relieve oil pressure accumulatio n in the 3rd/4th clutch assembly on a Hydramatic 4L60/E automatic transmission . Pressure relief is accomplished by a compression spring (37) and a valve member (28), located in the valve housing (27) . When unwanted pressure has accumulated in the 3rd/4th clutch circuit (whilst the transmission is in 1st or 2nd gear) the predetermined tension of the compression spring holds the valve member off its seat (29), thus allowing unwanted oil pressure to flow through the interior space of the housing (33) and exhaust through the orifi ce (35). When full oil pressure is applied in the 3rd/4th clutch circuit the compression spring (37) collapses and allows the valve member (28) to seal o n the valve seat (29) of the housing. Thus blocking the fluid flow and allowin g full oil pressure to apply the 3rd/4th clutch assembly.</p> |
