Fluid pump device for vehicle braking systems

A device for conveying a fluid, comprising:

• a piston arranged movably between a first end point and a second end point;
• a line system for conducting said fluid through said device;
• a closing element to selectively release flow of said fluid through said device, said closing element being movable between an open position releasing flow of said fluid and a closed position interrupting flow of said fluid;
• and
• a force generator to generate a force transmittable from said fluid to said closing element to move said closing element in the direction of said closed position when said piston is moving in the direction of said first end point, wherein said line system includes a through-line formed in said piston, said through-line being configured to conduct said fluid through said piston, and wherein said force generator includes a section in said through-line for receiving said closing element in said piston, and wherein said force generator further includes a bore extending into said section.

A device for conveying a fluid, comprising:

• a piston arranged movably between a first end point and a second end point;
• a line system for conducting said fluid through said device;
• a closing element to selectively release flow of said fluid through said device, said closing element being movable between an open position releasing flow of said fluid and a closed position interrupting flow of said fluid;
• a force generator to generate a force transmittable from said fluid to said closing element to move said closing element in the direction of said closed position when said piston is moving in the direction of said first end point, wherein said line system includes a through-line formed in said piston, said through-line being configured to conduct said fluid through said piston, and wherein said force generator includes a section in said through-line for receiving said closing element in said piston;
• and
• a restoring element to return said piston in the direction of said second end point, and wherein a recess is defined in said piston to receive said restoring element, and wherein said force generator further includes a bore extending between said recess and said section.

A method for conveying fluid, comprising:

• moving said fluid using a piston in a device for conveying said fluid, wherein said piston is arranged movable between a first end point and a second end point;
• conducting said fluid through said device using a line system;
• selectively releasing flow of said fluid through said device using a closing element, said closing element being movable between an open position releasing flow of said fluid and a closed position interrupting flow of said fluid;
• and
• generating a force transmittable from said fluid to said closing element to move said closing element in the direction of said closed position when said piston is moving in the direction of said first end point, wherein said closing element moves in the direction of said closed position only in response to said force.