摘要:
A displacement detection device for a variable displacement compressor in which a swash plate which is connected to a piston through shoes in a housing slides relative to the shoes and rotates synchronously with a drive shaft with a wobbling motion in an axial direction of the drive shaft as the drive shaft is rotated, and an inclination angle of the swash plate is controlled thereby changing a stroke of the piston, includes a detection object provided in a first portion of an outer periphery of the swash plate where an imaginary plane passing through a point of intersection between a line connecting top and bottom dead center positions of the swash plate and an axial line of the drive shaft in perpendicular relation to the line intersects with the outer periphery of the swash plate and a detector provided in the housing so as to face the detection object.
摘要:
A compressor includes swash plate (22), which is tiltably supported by a drive shaft (6). The displacement of the compressor changes in accordance with the inclination angle of the swash plate (22). The minimum inclination angle (θmin) of the swash plate (22) is less than three to five degrees relative to a plane perpendicular to the axis of the drive shaft (6). The swash plate (22) can be moved from its minimum inclination to increase its angle, despite the small minimum inclination angle, due to a return spring (27), which urges the swash plate (22) to increase the inclination angle. The return spring (27) positively moves the swash plate (22) in a direction increasing the inclination angle.
摘要:
A hybrid compressor selectively driven by an engine (3) and an electric motor (4). The hybrid compressor includes a variable displacement compression mechanism (1). When the compression mechanism (1) is driven by the motor (4), the cooling capacity of a refrigeration circuit that includes the hybrid compressor is adjusted by controlling the inclination of the swash plate (19) and the motor speed. In the control procedure, the inclination angle of the swash plate (19) and the motor speed are controlled so that the compression mechanism (1) and the motor (4) are most efficiently operated to achieve the required cooling capacity. Therefore, the hybrid compressor is constantly operated with maximum efficiency.
摘要:
The invention is directed to a swashplate angle sensor (10) for a variable displacement hydraulic unit (1). The hydraulic unit (1) comprising a housing (2), within which a swashplate (3) with a rod shaped feedback-link (12) fixedly attached to the swashplate (3) is arranged pivotable around a swashplate axis (7). The angle sensor (10) comprising a magnet (16) mounted rotatable on a magnet carrier (13), and a sensor (15) for sensing the orientation of the magnet (16). The magnet carrier (13) is located in a control block (14) attached to the housing (2) and is located parallel to the feedback-link (12). The magnet carrier (13) is rotatable around a sensor axis (18) being parallel to the swashplate axis (7). A linkage spring (11) provides a connection between the feedback-link (12) and the magnet carrier (13) such that a pivoting of the swashplate (3) with the feedback-link (12) causes a rotation of the magnet carrier (13).
摘要:
The invention relates to a hydraulic assembly comprising a variable electric motor and a hydrostatic variable displacement pump which can be coupled thereto and the pivoting angle of which can be adjusted by means of a hydromechanical adjustment device, the pivoting angle being detectible by means of a pivoting angle sensor and a working pressure of the variable displacement pump being detectible by means of a pressure sensor. A speed of the electric motor can be varied depending on the pivoting angle sensor and the pressure sensor.