The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2012
Filed:
Jul. 02, 2008
Juha Alajoki, Espoo, FI;
Pekka Hautala, Espoo, FI;
Jyrki Kajaste, Nummela, FI;
Jukka Kiijärvi, Kylmälä, FI;
Petri Kuosmanen, Espoo, FI;
Markus Niemi, Vantaa, FI;
Juha Alajoki, Espoo, FI;
Pekka Hautala, Espoo, FI;
Jyrki Kajaste, Nummela, FI;
Jukka Kiijärvi, Kylmälä, FI;
Petri Kuosmanen, Espoo, FI;
Markus Niemi, Vantaa, FI;
Wärtsilä Finland Oy, Vaasa, FI;
Abstract
A hydraulic actuator () comprising a body (), in which a control arm () and a lift means () provided with a piston surface () are arranged, which lift means is arranged to follow the reference movement of the control arm (), and an inlet port () and an outlet port () for hydraulic medium. The body () encloses a pressure chamber () delimited by the piston surface () of the lift means (), and the movement of the control arm () provides a flow connection between the inlet port () and the pressure chamber () in order to move the lift means (), and the movement of the control arm () in the opposite direction provides a flow connection between the pressure chamber () and the outlet port () in order to move the lift means () in the opposite direction.