摘要:
A rotating fluid machine is provided with a rotor chamber, a rotor accommodated in the rotor chamber, and vanes guided by vane grooves formed in the rotor. A U-shaped vane seal is held by a seal holding groove formed in the end face of each of the vanes. The opposite ends of the vane seal are fitted into slits in seal ancillary members which are fitted into engaging holes formed in the end faces of each of the vanes. The seal ancillary members are pressed by springs toward the inner circumferential face of the rotor chamber. The pressure of a gaseous phase working medium introduced into the bottom parts of the seal holding grooves is restrained from leaking out of the ends of the vane seal by the seal ancillary members. Thus, sealing performance can be secured by pressing the vane seal against the inner circumferential face of the rotor chamber.
摘要:
A rotary fluid machine is provided that includes a rotor rotatably housed within a casing, a hollow rotating shaft (113) that rotates integrally with the rotor, and a fixed shaft (102) that is relatively rotatably fitted into the inner periphery of the rotating shaft (113); in which the rotating shaft (113) is formed by shrink-fitting an outer sleeve (21) made of metal around the outer periphery of an inner sleeve (85) made of ceramic, etc. having a lower coefficient of thermal expansion than that of metal, and the fixed shaft (102) is formed by shrink-fitting an outer sleeve (88) made of metal around the outer periphery of an inner sleeve (87) made of ceramic, etc. having a lower coefficient of thermal expansion than that of metal. Since thermal expansion of the outer sleeves (21, 88) fitted around the outer peripheries of the inner sleeves (85, 87) is suppressed due to residual tensile stress of the outer sleeves (21, 88), intimate contact between the outer sleeves (21, 88) and the inner sleeves (85, 87) can be maintained.
摘要:
Pistons (41) are slidably received in a plurality of cylinders (39) disposed radially in a rotor (31), and a plurality of vanes (42) cooperating with the pistons (41) are disposed radially in the rotor (31), so that a vane chamber (54) is defined between a pair of the adjacent vanes (42). The radial movements of each of the pistons (41) and each of the vanes (42) are substantially stopped, so that the volumes of each of the cylinders (39) and each of the vane chambers (54) are not changed, for a period from the end of an exhaust stroke at which a gas-phase working medium is discharged from the cylinder (39) and the vane chamber (54) to the start of an intake stroke at which the supplying of the gas-phase working medium is started. Thus, it is possible to prevent the generation of a water hammer phenomenon due to a liquid-phase working medium confined in the cylinder (39) and the vane chamber (54).
摘要:
A rotating fluid machine has first energy converting means including cylinders and pistons, and second energy converting means including vanes emerging from and submerging into a rotor in the radial direction. A gaseous phase working medium having leaked out of the higher pressure first energy converting means to a reservoir is effectively utilized instead of being discarded wastefully by feeding the leaked gaseous phase working medium to the lower pressure second energy converting means via a one-way valve and a junction chamber. Moreover, when the pressure in the reservoir is lower than that in the junction chamber, the one-way valve obstructs the gaseous phase working medium from flowing back, thereby preventing the efficiency of the second energy converting means from deteriorating.
摘要:
A rotary fluid machine is provided that includes a rotor chamber (14) formed in a casing, a rotor (41) rotatably housed within the rotor chamber (14), a plurality of vane channels (49) formed radially in the rotor (41), a plurality of vanes (48) slidably supported in the respective vane channels (49), vane chambers (75) defined between adjacent vanes (48), and an intake port (90) and an exhaust port (91) for supplying and discharging a gas-phase working medium to and from the vane chambers (75). A labyrinth (43g) provided on the outer peripheral face of the rotor (41) prevents the gas-phase working medium from leaking in a region in which there is a large difference in pressure between adjacent vane chambers (75) that are in between the trailing edge of the exhaust port (91) and the leading edge of the intake port (90).
摘要:
A rotary fluid machine is provided that includes a rotor rotatably housed within a casing, a hollow rotating shaft (113) that rotates integrally with the rotor, and a fixed shaft (102) that is relatively rotatably fitted into the inner periphery of the rotating shaft (113); wherein the fixed shaft (102) is floatingly supported in the casing via a fixed shaft support spring (95) having an alignment action. When rotational runout of the rotor is transmitted to the fixed shaft (102) via the rotating shaft (113), the alignment action of the fixed shaft support spring (95) suppresses the rotational runout of the rotor, and any increase in the frictional resistance in a sliding section between the rotating shaft (113) and the fixed shaft (102) and the occurrence of abnormal wear can be prevented effectively, and the leakage of steam from a rotary valve (V) provided on the sliding surfaces of the rotating shaft (113) and the fixed shaft (102) can be reduced.
摘要:
A rotary fluid machine is provided that includes a rotor chamber (14), a rotor (41), vanes (48) guided by vane channels formed in the rotor (41), and pistons (47) slidably fitted in cylinders (44) provided in the rotor (41). Rollers (71) provided on support shafts (48d) of the vane (48) are rollably engaged with annular channels (74) of a casing (11) so as to interconvert reciprocation of the pistons (47) and rotational movement of the rotor (41). By capturing water of a hydrostatic bearing, which supports the vane (48) in the vane channel in a floating state, by a U-shaped lubricating water guide channel (43g) formed on the end face of a rotor segment (43) and discharging it into the annular channels (74), the water is prevented from flowing into the rotor chamber (14) and decreasing the temperature of steam, thereby preventing the output of the rotary fluid machine from being degraded.
摘要:
A rotary fluid machine is provided that includes a rotor chamber (14), a rotor (41), vanes (48) guided by vane channels formed in the rotor (41), and pistons (47) slidably fitted in cylinders (44) provided in the rotor (41). Rollers (71) provided on support shafts (48d) of the vane (48) are rollably engaged with annular channels (74) of a casing (11) so as to interconvert reciprocation of the pistons (47) and rotational movement of the rotor (41). By capturing water of a hydrostatic bearing, which supports the vane (48) in the vane channel in a floating state, by a U-shaped lubricating water guide channel (43g) formed on the end face of a rotor segment (43) and discharging it into the annular channels (74), the water is prevented from flowing into the rotor chamber (14) and decreasing the temperature of steam, thereby preventing the output of the rotary fluid machine from being degraded.
摘要:
A rotary fluid machine is provided that includes a rotor chamber (14), a rotor (41) housed within the rotor chamber (14), vanes (48) guided by vane channels formed in the rotor (41), and pistons (47) slidably fitted in cylinders (44) provided in the rotor (41). High temperature water of a hydrostatic bearing supporting the vane (48) in the vane channel in a floating state is retained by a plurality of pockets (48f) recessed in the surface of the vane (48), and the high temperature water retained by the pockets (48f) is supplied to the rotor chamber (14) during an expansion stroke as a result of radially outward movement of the vane (48) accompanying rotation of the rotor (41). The high temperature water supplied to the rotor chamber (14) is gasified into steam, and the pressure energy thereof improves the performance of the rotary fluid machine.
摘要:
A detector (11) of the present invention detects cessation of input to an input form by a user. A generator (12), when input is started again by the user after the user ceased input, acquires an input status of input to the form by the user that was outputted from a monitor that monitors the input status of the input of the information by the user, estimates a cause for input being ceased by the user based on the input status, and then, based on the estimated cause, generates a new input form for which input conditions have been relaxed.