High pressure valve for use as injection valve in diesel engine, has valve close unit leaving passage closing position for permitting fluid circulation between inlet and outlet, when deformation unit deforms body region

摘要

The valve has a valve close unit (20) integrated to body (2). The unit closes a passage between a fluid inlet (E) and a fluid outlet (S), to prevent fluid circulation inside the body. The unit leaves passage closing position for permitting fluid circulation between the inlet and the outlet, when a deformation unit e.g. jackscrew, deforms a region (R) of the body in a controlled and elastic manner. Independent claims are also included for the following: (A) a method of controlling a passage for fluid under pressure (B) a method of assembling a valve (C) a method of disassembling a valve.