摘要:
A compressor of scroll type or the like, in which, in order to change the discharge capacity automatically in accordance with the rpm (rotational speed) of a shaft (4) by simple means, the centrifugal force exerted on a movable scroll (9) orbiting with the rotation of the shaft (4) is used as a vibratory force to forcibly vibrate a spool (23) constituting a valve body supported on an elastic member (25), thereby opening and closing bypass holes (22) for establishing communication between a working chamber (V) and a suction chamber (15).
摘要:
A fluid machine for a gas compression refrigerating system comprises a first and a second working for performing a pump mode operation, in which working fluid of low pressure is sucked into and compressed by the working chambers. The fluid machine further comprises valve mechanism for selectively forming a motor mode passage in combination with a fluid passage change-over device, so that super heated working fluid of high pressure is introduced into at least one of the working chambers to perform a motor mode operation, in which the high pressure working fluid is expanded in the working chamber to obtain mechanical energy. The fluid machine according to the invention, therefore, performs the pump mode operation at one of the working chambers and at the same time the motor mode operation at the other working chamber.
摘要:
A switch valve structure of a fluid machine (10) having a pump mode to operate as a compressor and a motor mode to operate as an expander is disclosed. In pump mode, a communication path (106) between a working chamber (V) and a high-pressure chamber (104) is closed, while in motor mode, the communication path (106) is opened by a valve unit (107d). The valve unit (107d) is includes a spool portion (117) sliding in the direction substantially perpendicular to the surface to which the communication path (106) opens and a valve portion (127) arranged at the forward end of the spool portion (127) and sliding with the spool portion (117) thereby to open/close the communication path (106). A swivel mechanism (137) is interposed between the spool portion (117) and the valve portion (127) to tilt the sliding axis of the valve portion (127) at an arbitrary angle with respect to the sliding axis of the spool portion (117).
摘要:
A switch valve structure of a fluid machine (10) having a pump mode to operate as a compressor and a motor mode to operate as an expander is disclosed. In pump mode, a communication path (106) between a working chamber (V) and a high-pressure chamber (104) is closed, while in motor mode, the communication path (106) is opened by a valve unit (107d). The valve unit (107d) is includes a spool portion (117) sliding in the direction substantially perpendicular to the surface to which the communication path (106) opens and a valve portion (127) arranged at the forward end of the spool portion (127) and sliding with the spool portion (117) thereby to open/close the communication path (106). A swivel mechanism (137) is interposed between the spool portion (117) and the valve portion (127) to tilt the sliding axis of the valve portion (127) at an arbitrary angle with respect to the sliding axis of the spool portion (117).
摘要:
A scroll type compressor using a crank mechanism having enough freedom so that an amount of eccentricity of the movable scroll member becomes variable. An elastic body is inserted between the facing surfaces striking each other in the inside of the crank mechanism so as to prevent generation of a noise due to the collision of the parts when starting up or shutting down the compressor.
摘要:
A fluid machine for a gas compression refrigerating system comprises a first and a second working for performing a pump mode operation, in which working fluid of low pressure is sucked into and compressed by the working chambers. The fluid machine further comprises valve mechanism for selectively forming a motor mode passage in combination with a fluid passage change-over device, so that super heated working fluid of high pressure is introduced into at least one of the working chambers to perform a motor mode operation, in which the high pressure working fluid is expanded in the working chamber to obtain mechanical energy. The fluid machine according to the invention, therefore, performs the pump mode operation at one of the working chambers and at the same time the motor mode operation at the other working chamber.
摘要:
A variable capacity swash plate type compressor having compression chambers formed on one side of the plungers only, and control chambers for controlling the capacity of the compressor provided on the other side of the plungers. The capacity of the compressor is controlled by adjusting the pressure in the control chambers, whereby the inclination of the swash plate is changed because the force exerted on the plunger by the pressure in the control chamber, i.e., the force moving the swash plate, is changed. Therefore, since the volume of the compression chambers is relatively small, and a higher control pressure can be used, the response and the stability of the capacity control is improved.
摘要:
A scroll compressor wherein a cylinder is provided along the end plate of a stationary scroll member and a plurality of bypass holes which open in the end plate and can communicate with the space in the cylinder and a plurality of operating spaces formed between the spiral vanes of the stationary scroll member and a moving scroll member are successively opened by a plunger to communicate with the suction side, whereby the capacity may be changed smoothly. When reducing the capacity to close to 0 percent, another cylinder and plunger are used to bypass the discharge pressure to the suction side.
摘要:
A rotary machine sucking in working fluid through a suction port into a housing and discharging it through the discharge port, provided with a motor stator provided at an inside circumferential surface of the housing and having inside surfaces which include a step surface designed to enclose a housing interior cavity by the inside surfaces; first and second motor rotors arranged at the insides of the inside surfaces separated by the step surface of the motor stator; and first and second rotational units, the first and second rotational units coupled to the first and second motor rotors respectively, and the first and second rotational units supported at the housing adjoiningly and eccentrically to each other.
摘要:
A swash plate type compressor having pistons, each defining on opposite sides compression chambers 38 and 39. The cross sectional area of the operating chamber 39 located adjacent the driving source is larger than the cross sectional area of the operating chamber 38 located away from the driving source in such a manner that the axial force F0 generated in a rotating shaft 5 due to the difference between the pressure at the swash plate chamber and the atmospheric pressure is substantially canceled by the axial forces F1 and F2 generated in the rotating shaft due to the refrigerant pressure acting on the piston 8 in the operating chambers 38 and 39.