Title:
停止位置を制御したハイドロニューマチックシリンダー
Document Type and Number:
Japanese Patent JP2010540863
Kind Code:
A
Abstract:
A cylinder having a hollow cylindrical body with an axially moveable rod disposed therein that is moveable between a rest position and a stop position. The cylindrical body and rod are configured so as to create a main chamber located between a lower surface of the rod and a base of the cylindrical body. And to also create an auxiliary chamber that is connectable to the main chamber via a flow channel in the rod. In one implementation the main chamber is adapted to contain a gaseous fluid and an oily fluid mixture when the rod is in the rest position so that the fluid exerts a first force on the lower surface of the rod to urge the rod toward the rest position. When the rod is in the stop position the main chamber predominately contains only the oily fluid. The auxiliary chamber is in flow communication with the main chamber via the flow channel when the rod is not in the stop position, the first auxiliary chamber, main chamber and flow channel configured to cause at least the gaseous fluid to be located in the main chamber to pass through the flow channel to the auxiliary chamber when the rod is moved in a direction towards the stop position so that at least the gaseous fluid exerts a second force on a surface of the rod, opposite the lower surface of the rod, that acts against the first force. A closure element coupled to a portion of the body base is also provided and adapted to close the flow channel in the rod when the rod is in the stop position.
Inventors:
Valor Valor, Antonio
Gabi Kago Hair Score Benito, Alberto
Gabi Kago Hair Score Benito, Alberto
Application Number:
JP2010527364A
Publication Date:
December 24, 2010
Filing Date:
October 06, 2008
Export Citation:
Assignee:
Nitrogas, Sociedad Anonyma Unipersonal
International Classes:
F16J10/02; B21D24/02; F15B15/14; F15B15/22
Attorney, Agent or Firm:
Hatta International Patent Corporation