The present invention discloses an implement, in particular an excavator or a machine for material handling, with an element movable via at least one working drive, wherein at least one energy recovery cylinder is provided for energy recovery from the movement of the movable element, which includes
The present invention discloses an implement, in particular an excavator or a machine for material handling, with an element movable via at least one working drive, wherein at least one energy recovery cylinder is provided for energy recovery from the movement of the movable element, which includes a chamber filled with gas. In accordance with the invention, a device for adjusting the temperature of the energy recovery cylinder is provided.
대표청구항▼
1. An implement for an excavator or material handling, and comprising an element (2) movable via at least one working drive,at least one energy recovery cylinder (3) provided for energy recovery from the movement of the movable element (2),a chamber (13) fillable with gas and located within the ener
1. An implement for an excavator or material handling, and comprising an element (2) movable via at least one working drive,at least one energy recovery cylinder (3) provided for energy recovery from the movement of the movable element (2),a chamber (13) fillable with gas and located within the energy recovery cylinder (3),a piston rod (11) arranged to extend into and retract out from the energy recovery cylinder (3) to change volume of the chamber (13) and define a portion of an outer surface of the chamber (13),a heat exchanger (30, 35, 38, 50, 51, 52) for adjusting the temperature of the energy recovery cylinder (3) and arranged upon and surrounding the energy recovery cylinder (3), wherein the heat exchanger has an outer tube (35) directly arranged on a jacket (10) of the cylinder (3), and with the cylinder jacket (10) forming a boundary wall of flow space (40) within the heat exchanger (30), wherein either the outer tube (35) or cylinder jacket (10) includes a spiral helix (36,37) defining a flow space (41) extending spirally around the energy recovery cylinder (3), andfriction elements (72) arranged to be applied to the piston rod (11), and an actuator (75) arranged for controlling the friction elements (72). 2. The implement according to claim 1, wherein the heat exchanger is actuated on the basis of at least one operating parameter of the implement. 3. The implement according to claim 1, wherein a temperature sensor is provided, the actuation of the heat exchanger is effected on the basis of a signal of the temperature sensor, and the temperature sensor advantageously determines the outside temperature and/or the temperature of the energy recovery cylinder and/or the temperature of the gas in the chamber filled with gas and/or the temperature of a cooling fluid. 4. The implement according to claim 3, further comprising an input (31) and output (32) to and from the flow space, a circuit (65) connected with the input and output (31, 32),an additional cooling device (60) and an additional heating device (80) coupled with the circuit (65), anda valve (85) arranged in the circuit (65) for alternately coupling the heat exchanger (30) with the cooling or heating device (60, 80). 5. The implement according to claim 1, wherein the heat exchanger is actuated via a controller such that the energy recovery cylinder is heated below a first threshold temperature and/or cooled above a second threshold temperature and/or no cooling and/or heating is effected within a temperature window. 6. The implement according to claim 1, wherein the heat exchanger is connected to a cooling circuit and through which a cooling fluid flows, and advantageously the cooling circuit includes a cooling unit for cooling the cooling fluid and/or a heating unit for heating the cooling fluid. 7. The implement according to claim 6, wherein the cooling circuit is connected to a cooling circuit of a component of the implement, wherein the component includes an internal combustion engine and/or a hydraulic system of the implement. 8. The implement according to claim 1, wherein the heat exchanger has a tube element (38) spirally-wound directly around the cylinder jacket (10) of the cylinder (3). 9. The implement according to claim 1, wherein the heat exchanger (30) further comprises an inner cylinder tube (45), wherein the outer and inner cylinder tubes (35, 45) are secured to the energy recovery cylinder (3) as a whole and defining a flow space (40) therebetween. 10. The implement according to claim 9, wherein the inner tube (45) includes a spiral helix (36, 37) defining the flow space (41) extending spirally between the outer and inner cylinder tubes (35, 45). 11. The implement according to claim 1, further comprising an input (31) and output (32) to and from the flow space, and additionally comprising a cooling circuit (65) connected with the input and output (31, 32),a pump (66) arranged for pumping cooling fluid through the cooling circuit (65), anda cooling unit (60) arranged within the cooling circuit (65) and comprising a further heat exchanger (61) and fan (62). 12. The implement according to claim 1, further comprising an input (31) and output (32) to and from the flow space, and additionally comprising a circuit (65) connected with the input and output (31, 32),a pump (66) arranged for pumping fluid through the circuit (65), anda heating element (70) arranged within the circuit (65). 13. The implement according to claim 12, additionally comprising a cooling unit (60) arranged within the circuit (65), said cooling unit (60) comprising a further heat exchanger (61) and a fan (62). 14. The implement according to claim 1, additionally comprising a circuit (65) connected with the heat exchanger (30, 35, 38, 50, 51, 52),a pump (66) arranged for pumping fluid through the circuit (65), anda separate heat exchanger (61) and fan (62) arranged within the circuit (65). 15. The implement according to claim 1, wherein said at least one working drive comprises two working hydraulic drive cylinders (1,1) mounted on opposite sides of the energy recovery cylinder (2) from one another,the working hydraulic cylinders (1, 1) and the energy recovery cylinder (2) are articulated to the movable element (2),the element (2) is articulated to a construction (4) about a swivel axis (5), andthe working hydraulic cylinders (1, 1) and the energy recovery cylinder (2) are articulated to the construction (4) opposite the movable element (2). 16. The implement according to claim 15, wherein the movable element (2) is an excavator shovel. 17. The implement of claim 1, wherein the frictional elements are applied to the cylinder rod (11), and thereby generates friction to heat the energy recovery cylinder (3). 18. The implement of claim 17, wherein the frictional elements (72) are positioned outside of a housing of the cylinder rod (10) and adjacent to the cylinder rod (11). 19. An implement for an excavator or material handling, and comprising an element (2) movable via at least one working drive,at least one energy recovery cylinder (3) provided for energy recovery from the movement of the movable element (2),a chamber (13) fillable with gas and located within the energy recovery cylinder (3),a piston rod (11) arranged to extend into and retract out from the energy recovery cylinder (3) to change volume of the chamber (13) and define a portion of an outer surface of the chamber (13),an electronic heating blanket arranged around the energy recovery cylinder, anda heat exchanger (30, 35, 38, 50, 51, 52) for adjusting the temperature of the energy recovery cylinder (3) and arranged upon and surrounding the energy recovery cylinder (3). 20. The implement according to claim 19, wherein the heat exchanger (30) has a tube element (38) spirally-wound directly around a cylinder tube (45) secured to the energy recovery cylinder (3). 21. The implement according to claim 19, wherein the heat exchanger has cooling ribs (50, 51, 52) directly arranged on either the cylinder jacket (10) of the energy recovery cylinder (3) or a tube (45) separately secured to the energy recovery cylinder (3). 22. The implement according to claim 21, wherein the ribs (50, 51, 52) extend radially around, longitudinally along or spirally around the energy recovery cylinder (3). 23. The implement of claim 19, wherein: the energy recovery cylinder includes a first longitudinal end and a second longitudinal end, the second longitudinal end is opposite the first longitudinal end, wherein the electronic heating blanket covers an entire area of the energy recovery cylinder from the first longitudinal end to the second longitudinal end.
Qu,YuZhi; Qu,ZhiPeng; Chao,Jason; Li,YuFu; Chen,Peng; Yan,JunHua; Yang,Hong Yuan; Wei,Qi Feng, Devices using a medium having a high heat transfer rate.
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McBride, Troy O.; Bollinger, Benjamin R.; Izenson, Michael; Chen, Weibo; Magari, Patrick; Cameron, Benjamin; Cook, Robert; Richter, Horst, Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression.
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