Abstract: A hydropneumatic suspension unit for a vehicle that includes an outer sleeve which defines a first chamber, and a damping piston which is arranged for sliding displacement in the first chamber. The first chamber contains gas mainly for providing spring action and liquid mainly for providing damping action. The gas is in direct contact with the liquid.

Abstract: A hydropneumatic suspension unit for a vehicle that includes an outer sleeve which defines a first chamber, and a damping piston which is arranged for sliding displacement in the first chamber. The first chamber contains gas mainly for providing spring action and liquid mainly for providing damping action. The gas is in direct contact with the liquid.

Abstract: A hydropneumatic suspension unit for a vehicle that includes an outer sleeve which defines a first chamber, and a damping piston which is arranged for sliding displacement in the first chamber. The first chamber contains gas mainly for providing spring action and liquid mainly for providing damping action. The gas is in direct contact with the liquid.

Abstract: A hydropneumatic suspension unit for a vehicle that includes an outer sleeve which defines a first chamber, and a damping piston which is arranged for sliding displacement in the first chamber. The first chamber contains gas mainly for providing spring action and liquid mainly for providing damping action. The gas is in direct contact with the liquid.

Abstract: A flanged connection and a method of fixing a gas-filled spring in a machine tool. The flanged connection includes an upper flange half and a lower flange half that can be joined together, each having a through-opening intended to receive the gas-filled spring, and a locking ring intended to secure the gas-filled spring by insertion into a groove of complementary design around the gas-filled spring and fixing between the flange halves. The locking ring is supplemented by a fixing element designed to apply a clamping force around the gas-filled spring when joining the flange halves together.

Abstract: A gas spring for a pressing tool. A cylindrical chamber is divided by a piston into a first space and a second space. The piston is attached to a piston rod, which is axially moveable in the cylindrical chamber. The gas spring is designed with an opposing force to counteract a movement that is produced by forces acting axially on the piston rod in that the first space and the second space are pressurized with a gas. Passages connect the first space and the second space and permit a flow of gas between the first space and the second space. The passages occupy an area that is greater than 5% of the area of the piston in order to reduce the amount of heat generated in the gas spring. The area of the piston is the difference between the cross-sectional areas of the cylindrical chamber and the piston rod.

Abstract: The present invention relates to an arrangement in an energy-accumulating piston-cylinder device (1, 2) having a piston (2) and a cylindrical casing (1). The invention is characterized by an openable safety valve (1) arranged in the piston (2) and/or a discharge duct (11) together with an element (8; 17) arranged on the cylindrical casing (1) or the safety valve (10) and in the cylinder chamber, which element is designed, in the event of the piston (2) being inserted into the cylinder chamber by more than a predetermined distance, to act upon the safety valve/the discharge duct (10, 11) in order to expose the said duct (11), permitting a discharge of the pressure in the cylinder chamber.

Abstract: A gas spring for a pressing tool. A cylindrical chamber is divided by a piston into a first space and a second space. The piston is attached to a piston rod, which is axially moveable in the cylindrical chamber. The gas spring is designed with an opposing force to counteract a movement that is produced by forces acting axially on the piston rod in that the first space and the second space are pressurized with a gas. Passages connect the first space and the second space and permit a flow of gas between the first space and the second space. The passages occupy an area that is greater than 5% of the area of the piston in order to reduce the amount of heat generated in the gas spring. The area of the piston is the difference between the cross-sectional areas of the cylindrical chamber and the piston rod.

Abstract: A flanged connection and a method of fixing a gas-filled spring in a machine tool. The flanged connection includes an upper flange half and a lower flange half that can be joined together, each having a through-opening intended to receive the gas-filled spring, and a locking ring intended to secure the gas-filled spring by insertion into a groove of complementary design around the gas-filled spring and fixing between the flange halves. The locking ring is supplemented by a fixing element designed to apply a clamping force around the gas-filled spring when joining the flange halves together.

Abstract: The present invention relates to an arrangement in an energy-accumulating piston-cylinder device (1, 2) having a piston (2) and a cylindrical casing (1). The invention is characterised by an openable safety valve (10) arranged in the piston (2) and/or a discharge duct (11) together with an element (8; 17) arranged on the cylindrical casing (1) or the safety valve (10) and in the cylinder chamber, which element is designed, in the event of the piston (2) being inserted into the cylinder chamber by more than a predetermined distance, to act upon the safety valve/the discharge duct (10, 11) in order to expose the said duct (11), permitting a discharge of the pressure in the cylinder chamber.