Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of operating a piezoelectric actuator










Image Number 5 for United States Patent #7576473.

A method of operating an injector having an injector valve needle and a piezoelectric actuator for controlling movement of the injector valve needle, the method comprising reducing the voltage across the actuator at a first rate (RT1) in order to initiate an initial injection, increasing the voltage across the actuator in order to terminate the injection, and once the initial injection has terminated and before a subsequent injection is initiated, reducing the voltage across the actuator at a second rate (RT2; RT3), which is lower than the first rate (RT1), so as to de-energise the actuator but without initiating an injection. The invention ensures the injector spends a significantly reduced period of its life with a high voltage across its actuator.








 
 
  Recently Added Patents
Polymeric structures comprising a siloxane
Multiple input multiple output transceiver
Compositions, organisms, systems, and methods for expressing a gene product in plants using SCBV expression control sequences operable in monocots and dicots
Method and apparatus for monitoring wireless communication in hearing assistance systems
Knife grip
Mirac proteins
Systems and methods for processing telephone calls
  Randomly Featured Patents
Kickboard
Focusable flashlight
Multiple tunable central cathodes on a paddle for increased medial-lateral and rostral-caudal flexibility via current steering
Clad textured metal substrate for forming epitaxial thin film thereon and method for manufacturing the same
Thermoplastic resin composition and method for producing the same
Method and system for determining computer software test coverage
Method of visually detecting antioxidant in an organic mixture
Aqueous solution of an alpha sulfonate surfactant comprising 1,3-bis (hydroxymethyl)-5, 5-dimethylimidazolidine-2, 4 dione
Method using handheld apparatus for delivery of particulate matter
Substituted triazolinones as crop protection agents