摘要:
A device recovers energy in working machines with at least one power drive actuated to move a load mass back and forth and with an energy storage system (16) absorbing the energy released in the movement of the load mass in one direction and making it available for a subsequent movement in the other direction. The energy storage system includes an accumulator cylinder (16) mechanically coupled to the load mass and storing pneumatic pressure energy for movement in one direction. For movement in the other direction, the accumulator cylinder acts as an auxiliary working cylinder supporting the power drive and converting the stored pressure energy into driving force.
摘要:
A device for recovering energy in working machines, with at least one power drive, which can be actuated to move a load mass back and forth, and with an energy storage system (16) which absorbs the energy released in the movement of the load mass in one direction and which makes it available for a subsequent movement in the other direction, is characterized in that there is an energy storage system in the form of an accumulator cylinder (16) which, mechanically coupled to the load mass, stores pneumatic pressure energy for movement in one direction, and, for movement in the other direction, acts as an auxiliary working cylinder which supports the power drive and which converts the stored pressure energy into driving force.
摘要:
A pressure vessel, provided preferably for use in bladder accumulators (27), has a multipart vessel body (1) composed of a tubular central part (3) that at at least one of its two ends, has a termination region (5, 7). A cover part (9) at least partially forms the termination region (5, 7) and engages at the edge over the central part (3), at least in the region of its end (13, 15), so as to form a fixed connection.
摘要:
A hydrostatic hybrid drive system for road vehicles includes a pump/motor unit (1) connected to the powertrain of the vehicle, controlled by a control unit (5) in a pump or motor operation, and connected to a high-pressure hydraulic accumulator via a first working line (7). The first working line can be closed by a control valve (45) and connected to a low-pressure hydraulic accumulator via a second working line (9). The high-pressure hydraulic accumulator and low-pressure hydraulic accumulator are formed by a double-piston accumulator (11), in which a high-pressure side and a low-pressure side having respective accumulator pistons (15, 17) are formed in an accumulator housing (13). The fluid chambers (23, 25) of the high-pressure side and the low-pressure side are separated by a central housing part (21) through which the common piston rod for both accumulator pistons (15, 17) extends. The control unit (5) of the pump/motor unit (1) having a control area can be supplied from the first working line (7) via a line connection (59) provided on the first working line (7) between the pump/motor unit (1) and the control valve (45).
摘要:
The invention relates to a dual piston accumulator which is provided, in particular, in a hydrostatic hybrid-drive system for vehicles to replace a high pressure hydro accumulator and a low pressure hydro accumulator, wherein, inside a single accumulator housing (2) which extends in the axial direction in a single piece over a high pressure part (4) and a low pressure part (6), an accumulator piston (8, 10) defines a high pressure-sided fluid chamber (16) and a low pressure-sided fluid chamber (18), both of which border an intermediate piece (12) separating the high pressure side (4) from the low pressure side (6) through which the common piston nod (14) extends for both accumulator pistons (8, 10). Said accumulator is characterised in that the wall width of the housing (2) corresponding to the high pressure pan (4) is greater than the opposite induced wall width which corresponds to the low pressure pan (6).
摘要:
A pressure vessel which is provided preferably for use in bladder accumulators (27), having a multi-part vessel body (1) composed of a tubular central part (3) which, at at least one of its two ends, has a termination region (5, 7), is characterized in that a cover part (9) which at least partially forms the respective termination region (5, 7) engages at the edge over the central part (3), at least in the region of the respectively assignable end (13, 15) thereof, so as to form a fixed connection.
摘要:
A dual piston accumulator, in particular for a hydrostatic hybrid drive system for vehicles, replaces a high pressure hydro accumulator and a low pressure hydro accumulator. Inside a single accumulator housing (2) extending in the axial direction in a single piece over a high pressure part (4) and a low pressure part (6), an accumulator piston (8, 10) defines a high pressure-sided fluid chamber (16) and a low pressure-sided fluid chamber (18). Both chambers border an intermediate piece (12) separating the high pressure side (4) from the low pressure side (6). A common piston rod (14) extends through the intermediate piece for both accumulator pistons (8, 10). The wall width of the housing (2) corresponding to the high pressure part (4) is greater than the opposite reduced wall width corresponding to the low pressure part (6).
摘要:
The invention relates to an hydrostatic hybrid drive system for road vehicles, said system comprising a pump/motor unit (1) which is or can be connected to the powertrain of the vehicle, can be controlled by means of a control unit (5) in a pump or motor operation and can be connected to a high-pressure hydraulic accumulator via a first working line (7) that can be closed by means of a control valve (45) and to a low-pressure hydraulic accumulator via a second working line (9). The high-pressure hydraulic accumulator and low-pressure hydraulic accumulator are formed by a double-piston accumulator (11), in which a high-pressure side and a low-pressure side having respective accumulator pistons (15, 17) are formed in an accumulator housing (13), wherein the fluid chambers (23 and 25) of the high-pressure side and the low-pressure side are separated by a central housing part (21) through which the common piston rod for both accumulator pistons (15, 17)extends. The invention is characterised in that the control unit (5) of the pump/motor unit (1) having a control area can be supplied from the first working line (7) via a line connection (59) which is provided on the first working line (7) between the pump/motor unit (1) and the control valve (45).
摘要:
A pressure vessel for receiving at least one fluid medium has a first shell (1) and a second shell (3) at least partially encompassing the first shell (1). The first shell (1) has, at least at one of its ends, a collar portion (5) having a securing element (15) that forms an opening (13) for supplying and discharging the medium. A support element (19) in the form of a split ring surrounds the opening (13), is provided inside the container and has a contact surface (39) adapted to the curved shape of the first shell (1) inner side attached to the collar portion (5). The contact surface is able to be pressed onto the first shell inner side attached to the collar portion (5). The contact surface is able to be pressed onto the first shell (1) using a pressing device (43, 45).
摘要:
The invention relates to a method for thermally initiated triggering of an aerosol fire extinguisher having a strike pin (6) acted upon by an inner spring (7) and locked in the stand-by state, and after thermal initiation, the lock is removed and the strike pin (6), driven by the force of the inner spring (7), strikes against a mechanical firing cap (1), whereby an initial firing material is released in the firing cap (1), igniting a booster charge (2), the hot conversion gas thereof igniting a pyrotechnic extinguisher charge in the aerosol fire extinguisher. In order that an absolutely reliable initiation takes place under the same conditions throughout the entire service life of the aerosol fire extinguisher, it is proposed that only immediately after the thermal initiation, when the firing pin (6) is still locked, the inner spring (7) is brought to the necessary tension for triggering the firing cap (1), and only after reaching said tension is the lock of the firing pin (6) automatically released.