Hydraulic valve repair kit and method of use
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United States of America Patent
Stats
-
Apr 20, 2004
Grant Date -
N/A
app pub date -
Aug 29, 2002
filing date -
Sep 14, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic spool valve repair kit comprising a cylindrical valve cap and a replacement spring retainer plate and a method of use of these components for increasing the service longevity of such a hydraulic spool valve within the valve body of an automatic transmission is disclosed. The present valve cap is a cylindrical steel construction having a longitudinal bore, which is radially disposed about a terminal end of the aluminum valve piston to provide a more durable contact surface and to substantially reduce mechanical wear between the dissimilar materials of the original components. The replacement spring retainer plate, which inadvertently contacts the valve piston under some operating conditions, is reconfigured to include resilient leg members for retention of the spring retainer plate within the valve body and also provides a stable spring seat for the compression spring that actuates the spool valve.
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