Air to oil intensifier
AssigneeBTM Corporation
InventorEdwin G. Sawdon
Life of this patent
Estimating the term…
Abstract
A pressure intensifier for generating a relatively large output force includes a piston driven in an advancing direction and a retracting direction. In one embodiment, two pistons are also driven to eliminate the need for a high pressure source. Another embodiment includes a biased piston for urging a ram in the advancing direction. A module for converting a single piston intensifier to a dual piston intensifier is also discussed.
Claims22
A pressure intensifier for supplying force, the pressure intensifier comprising:
- a housing;
- first, second and third pistons slidably positioned in said housing, said first and second pistons being drivingly coupled to a rod;
- wherein said third piston includes a first portion extending through said housing and a second portion in contact with a substantially incompressible fluid, wherein said substantially incompressible fluid is selectively confined within a cavity, wherein said rod includes a first end selectively moveable within said cavity and wherein said first and second pistons are drivable in a first direction by pressurized fluid to further insert said rod within said cavity and produce an amplified output force at said first portion of said third piston, wherein said first piston is drivable in a second direction opposite said first direction by pressurized fluid to retract said third piston.
A pressure intensifier for supplying force, the pressure intensifier comprising:
- a housing;
- first, second and third pistons slidably positioned in said housing, said first and second pistons being drivingly coupled to a rod;
- wherein said third piston includes a first portion extending through said housing and a second portion in contact with a substantially incompressible fluid, wherein said substantially incompressible fluid is selectively confined within a cavity, wherein said rod includes a first end selectively moveable within said cavity and wherein said first and second pistons are drivable in a first direction by pressurized fluid to further insert said rod within said cavity and produce an amplified output force at said first portion of said third piston, wherein said third piston includes a seat engagable by said rod.
A method for producing an amplified force comprising:
- supplying pressurized air via a single port to first and second spaced apart pistons slidably positioned in a housing;
- driving a portion of a rod coupled to said first and second pistons into a selectively sealed chamber containing a substantially incompressible fluid;
- sealing said chamber;
- forcing said rod into said sealed chamber to drive a ram at an amplified force;
- and
- retracting said ram by supplying pressurized air to said first piston.
A pressure intensifier for supplying force comprising:
- a housing selectively separable into a first segment and a second segment;
- a bulkhead interconnecting said first and second segments, wherein said bulkhead defines first and second cavities within said housing;
- a first piston slidably positioned within said first cavity;
- and
- a second piston slidably positioned with said second cavity;
- wherein said first and second pistons are coupled to a rod and wherein said rod is selectively drivable in a first direction into a third cavity containing a substantially incompressible fluid to supply an output force.
A pressure intensifier for supplying force comprising:
- a first housing having a first end and a second end;
- a first piston slidably positioned in said first housing;
- a first rod coupled to said first piston;
- an end cap coupled to said first end of said housing;
- and
- a module including a second housing, a second piston, a second rod and a bulkhead wherein said module is selectively insertable between said end cap and said first housing to increase the piston area available for supplying force, wherein said second rod is couplable to said first piston and said second piston, and wherein said bulkhead is adapted to couple said first housing to said second housing.
Dependencies are inferred from the claim text.