Hydraulic cylinder with boosting function
AssigneePascal Engineering Corporation
InventorIchiro Kitaura
Life of this patent
Estimating the term…
Abstract
A fluid pressure cylinder with pressure intensifying function, has an oil-filled hydraulic pressure cylinder which is filled with oil and tightly sealed. A gas-filled gas spring is charged with gas and tightly sealed. By means of gas spring, oil in oil chamber of hydraulic pressure cylinder is pressurized to a pressure level higher than the gas pressure in gas actuating chamber of gas spring. This results in a strong pushing force being generated via output piston of hydraulic pressure cylinder.
Claims9
A fluid pressure cylinder with pressure intensifying function comprising:
- a cylinder body;
- a liquid chamber within said cylinder body, said liquid chamber filled with liquid;
- an output piston which receives liquid pressure from said liquid chamber;
- a gas spring having a gas actuating chamber, filled with compressed gas, and a pressure-receiving means, which receives gas pressure of said gas actuating chamber;
- said gas spring pressurizes said liquid in said liquid chamber to a pressure higher than said gas pressure;
- a check valve inserted into said cylinder body and connecting said gas actuating chamber to an exterior of said cylinder body;
- a partitioning means internal to said cylinder body, separating said liquid chamber and said gas actuating chamber;
- said partitioning means being secured to the cylinder body by a threaded fit;
- a passage hole in said partitioning means;
- and
- an output rod part of the pressure-receiving means is inserted in said passage hole such that it slides freely.
A fluid pressure cylinder with pressure intensifying function, comprising:
- a cylinder body;
- a liquid chamber within said cylinder body, said liquid chamber filled with liquid;
- an output piston which receives liquid pressure from said liquid chamber;
- a gas spring having a gas actuating chamber, filled with compressed gas, and a pressure-receiving means, which receives gas pressure of said gas actuating chamber, said gas spring pressurizes said liquid in said liquid chamber to a pressure higher than said gas pressure;
- a partitioning means internal to said cylinder body, separating said liquid chamber and said gas actuating chamber;
- a passage hole in said partitioning means;
- and
- an output rod part of the pressure-receiving means;
- said output rod part being inserted in said passage hole such that it slides freely.
Dependencies are inferred from the claim text.