The hydraulic temperature compensator (5) has at least one longitudinally expandable hydraulic chamber (10, 11) and a gas-filled chamber (12), which is at least partially surrounded by the hydraulic chamber (10, 11), wherein the hydraulic chamber (10, 11) ...

The invention relates to a fluid injector (10; 200) for injecting fuel into a combustion engine (115), the fluid injector (10; 200) comprising: a valve (25), a tubular valve body (15) and an orifice disc (30), wherein the valve (25) comprises valve seat (6...

A fuel injector comprises an injector body (12), a fuel inlet (16), an injecting valve (26) for selectively emitting fuel at a spray tip (20), an axially extendable actuator (30) associated with said valve group (26) for actuation thereof and a lash compen...

The piezoelectric actuator (18a) is accommodated in a perforated sleeve (30a) inside a housing (12a). A baseplate (22a) in contact with the actuator carries an actuating rod (24a). There are two contact pins (26a) at the top extending through bores (28a) i...

A temperature compensated actuator device comprises a piezoelectric stack having first and second ends along a central axis and having a first thermal expansion coefficient; and a compensator arranged on one end of the piezoelectric stack. The compensator ...

The assembly has a piezoelectric unit (11) coupled to a spring (12) by a coupling unit (13). Thermally induced expansion of the unit (11) is translated into a compensating movement of the rigid coupling unit and buffered by the spring. A collar has a coil ...