| 摘要 |
<p>A piezoelectric actuator (20) for use in a fuel injector, the actuator (20) comprising a stack (24) of one or more piezoelectric elements for receipt within an accumulator chamber (12) of the injector, distribution electrode means (26a, 26b) for generating an electric field within the stack (24), an electrical connector arrangement (30) including a body member (36) defining an external boundary and including a base portion (36a) and a stem portion (36b) projecting from the base portion (36a). The base portion (36a) defines a base end face (31) for abutment with an adjacent end face of the stack (24) and terminal means for connection with an external power supply. The terminal means includes at least one terminal member (38a, 38b) disposed internal to the external boundary of the body member (36) and the at least one terminal (38a, 38b) member is connectable with an external power supply so as enable voltage supply to the distribution electrode means (26a, 26b). The base portion (36a) of the body member (36) defines a sealing surface for abutment with an internal surface (44) defined by the accumulator chamber (12).</p> |
