Abstract: An energy cell generates pressurized fluid for use as an energy source when a phase change material (PCM) changes from solid to liquid phase. The energy cell includes housing means holding the PCM, insulating means between the housing means and the PCM, heat exchanging means encompassed by the PCM, multiple pipe means, and multiple disc means, each provided with multiple aperture means and each encompassing a part of the pipe, and a centrally located bladder means with open end parts fixed to the energy cell, and which is flexible between the end parts. Each pipe means includes a heat transfer media. The PCM encompasses the pipe means and the disc means and is able to pass through the aperture means. The bladder means includes a hydraulic fluid flowing in and out through the open end parts of the bladder means and is affected by the PCM.

Abstract: The present invention relates to a pressure transducer for transforming a pressure of a fluid from one pressure level to another, comprising at least one pair of hydraulic rotating machines that are mutually mechanically interconnected in such a way that a first machine in a first pair of said at least one pair can run a second machine in the same first pair. Said first pair of machines is mounted in a first substantially closed room and each one of said first and second machines is in hydraulic connection with said first room. The present invention also relates to a hydraulic system for transferring hydraulic energy.

Abstract: An apparatus for degassing oil comprising:—a room (30) for receiving oil comprising a first chamber (30a) and a second chamber (30b) connected to the first chamber;—an inlet (31) feeding oil into the first chamber;—an outlet (32) for feeding oil out of the first chamber;—a suction arrangement (40) connected to the outlet (32) for sucking out oil from the room;—a non-return valve (33) connected to the second chamber; and—a regulating device comprising a float (51) and a valve member (52) activated by the float for regulating the feeding of oil into the room. The float has a lower section (51) located in the first chamber and an upper section (51 b) extending into the second chamber. The upper section delimits a flow passage (63) extending between the first chamber and the second chamber. The valve member is arranged to open the inlet when the float assumes a lower position in the room and close the inlet when the float assumes an upper position in the room.

Abstract: A unit (1) for accumulating and degassing oil in an oil system comprising a reservoir (2) provided with a first chamber (3) in which the oil is subjected to atmospheric pressure and in which the oil volume is allowed to vary, a second chamber (4) which is intended to be at least nearly completely filled with oil and in which the oil is kept separated from direct contact with surrounding air, and a flow passage (7) between the chambers. A air-tight flexible member (11) is arranged in the first oil accumulation chamber in order to keep the oil therein separated from direct contact with surrounding air. The unit also comprises an apparatus (20) for degassing oil, which is connected to the reservoir and comprises an entrance (21a) for feeding oil into the apparatus (20), an exit (22a) for oil connected to the reservoir, and a degassing room.

Abstract: The present invention relates to an energy cell (10) operable to generate a pressurized fluid for use as an energy source when a phase change material (PCM) changes from solid phase to liquid phase. The energy cell (10) comprises a housing means (12) holding the phase change material (PCM), and an insulating means (14) arranged between the housing means (12), and the phase change material (PCM). The energy cell (10) also comprises a heat exchanging means (16) encompassed by the phase change material (PCM) and comprising a number of pipe means (400), and a number of disc means (402, 404), each provided with a number of aperture means (500) and each encompassing a part of the pipe The energy cell (10) also comprises a centrally located, bladder means (410) which at its end parts are fixed to the energy eel! (10) and are open, and between the end parts being flexible. Each pipe means (400) comprises a heat transfer media.

Abstract: A unit (1) for accumulating and degassing oil in an oil system comprising a reservoir (2) provided with a first chamber (3) in which the oil is subjected to atmospheric pressure and in which the oil volume is allowed to vary, a second chamber (4) which is intended to be at least nearly completely filled with oil and in which the oil is kept separated from direct contact with surrounding air, and a flow passage (7) between the chambers. A air-tight flexible member (11) is arranged in the first oil accumulation chamber in order to keep the oil therein separated from direct contact with surrounding air. The unit also comprises an apparatus (20) for degassing oil, which is connected to the reservoir and comprises an entrance (21a) for feeding oil into the apparatus (20), an exit (22a) for oil connected to the reservoir, and a degassing room.

Abstract: An apparatus for degassing oil comprising:—a room (30) for receiving oil comprising a first chamber (30a) and a second chamber (30b) connected to the first chamber;—an inlet (31) feeding oil into the first chamber;—an outlet (32) for feeding oil out of the first chamber;—a suction arrangement (40) connected to the outlet (32) for sucking out oil from the room;—a non-return valve (33) connected to the second chamber; and—a regulating device comprising a float (51) and a valve member (52) activated by the float for regulating the feeding of oil into the room. The float has a lower section (51) located in the first chamber and an upper section (51 b) extending into the second chamber. The upper section delimits a flow passage (63) extending between the first chamber and the second chamber. The valve member is arranged to open the inlet when the float assumes a lower position in the room and close the inlet when the float assumes an upper position in the room.