A dynamotor capable of operating as either a motor or a generator is used with both the armature portion and the field portion thereof capable of being rotated. In the case where a pulley operatively interlocked with the output shaft of the prime mover is mounted on the rotary shaft of the armature portion, the drive shaft of the compressor is mounted on the rotating field portion. Once the dynamotor is operated in motor mode, the rotational speed of the compressor is increased to the sum of the input rotational speed and the rotational speed of the dynamotor. The compressor is stopped by disconnecting a power feed circuit. When the input rotational speed is too high, the dynamotor is operated in generator mode. In this way, the rotational speed is reduced in accordance with the generated electric energy.

A hybrid compressor achieving simplification in the structure and capable of driving the compression unit with ease is provided. An electromagnetic clutch unit (40) is provided at a rotating shaft (11) projecting out on one side of a compression unit (10) and an electric motor unit (70) is provided at the rotating shaft (11) projecting out on the other side of the compression unit (10), so that an electromagnetic clutch unit (40) in the prior art can be utilized directly. At the same time, since the electric motor unit (70) is provided at the rotating shaft (11) projecting out the other side of the compression unit (10), the electromagnetic clutch unit and the electric motor unit are set at the same rotating shaft (11) and the compression unit (10) and the electric motor unit (70) are positioned next to each other to reduce the torsional torque generated at the rotating shaft (11).

Die Erfindung betrifft eine Pumpenantriebsanordnung mit einem Pumpenantriebselement (70), das durch eine erste oder eine zweite Antriebseinrichtung angetrieben ist.

Die Erfindung zeichnet sich dadurch aus, dass das Pumpenantriebselement (70) durch ein Kopplungselement (84) entweder über eine erste Freilaufeinrichtung (91) mit der ersten Antriebseinrichtung oder über eine zweite Freilaufeinrichtung (92) mit der zweiten Antriebseinrichtung drehfest verbindbar beziehungsweise verbunden ist.

A structure and method for holding an electric wire connected to the inside of an electric compressor incorporating a motor. The structure has a holding member for holding an electric wire present between a connection terminal section for connection to the outside and a built-in electric device. The structure and method can reliably eliminate possibility of adverse affection to an input electric wire caused by vibration, etc. while preventing a reduction in efficiency of assembly work and an increase in size of the compressor.

In a hybrid compressor, a compression mechanism includes a rotary shaft (16), which has a first end (16a) and a second end (16b). The first end (16a) of the rotary shaft (16) is coupled to a rotating body (25) that receives power from an external drive source (Eg). The second end (16b) of the rotary shaft (16) is coupled to an electric motor (30), which drives the rotary shaft. The rotary shaft (16) is coupled to a rotor of the electric motor (30) via a one-way clutch (33), which is capable of preventing power from being transmitted from the rotary shaft (16) to the rotor (32). The rotor (32) is supported by a motor shaft (31), which is separate from the rotary shaft (16). The second end (16b) of the rotary shaft (16) is coupled to an end of the motor shaft (31) using the one-way clutch (33) as a coupling.

A vehicle driving system includes a pulley shaft (2) synchronously rotating with a crankshaft of an engine (1), an auxiliary unit drive shaft driving an auxiliary unit (4), a planetary gear mechanism portion (13) having elements such as a sun gear, a pinion carrier and a ring gear. The pulley shaft and the auxiliary unit drive shaft are adapted for connection to any two of the elements of the planetary gear mechanism portion, respectively. The motor (12) connecting to the remaining element of the planetary gear mechanism portion. A lock-up clutch (21) connecting together the two or more elements of the planetary gear mechanism portion. A one-way clutch for restricting the rotation of the auxiliaryunit drive shaft in one direction, wherein the planetary gear mechanism portion, the motor, the lock-up clutch, and the auxiliary unit drive shaft are coaxially disposed in line.

In a hybrid compressor, a compression mechanism includes a rotary shaft (16), which has a first end (16a) and a second end (16b). The first end (16a) of the rotary shaft (16) is coupled to a rotating body (25) that receives power from an external drive source (Eg). The second end (16b) of the rotary shaft (16) is coupled to an electric motor (30), which drives the rotary shaft. The rotary shaft (16) is coupled to a rotor of the electric motor (30) via a one-way clutch (33), which is capable of preventing power from being transmitted from the rotary shaft (16) to the rotor (32). The rotor (32) is supported by a motor shaft (31), which is separate from the rotary shaft (16). The second end (16b) of the rotary shaft (16) is coupled to an end of the motor shaft (31) using the one-way clutch (33) as a coupling.

An air conditioner for a vehicle uses a hybrid compressor (4) including a first compression mechanism driven by a first drive source (2) and a second compression mechanism driven by a second drive source (5), and a single discharge port connected to the first and the second compression mechanisms. The operation of the hybrid compressor is controlled by a controller (15) in accordance with a control mode. The controller has a first operation mode in which the first compression mechanism alone is driven, a second operation mode in which the second compression mechanism alone is driven, a third operation mode in which the first and the second compression mechanisms are simultaneously driven, and a fourth operation mode in which the first and the second compression mechanisms are simultaneously stopped. Depending upon various conditions, the controller selects, as the control mode, one of the first, the second, the third, and the fourth operation modes.

A vehicle driving system includes a pulley shaft synchronously rotating with a crankshaft of an engine, an auxiliary unit drive shaft driving an auxiliary unit, a planetary gear mechanism portion having elements such as a sun gear, a pinion carrier and a ring gear. The pulley shaft and the auxiliary unit drive shaft are adapted for connection to any two of the elements, respectively. The motor connecting to the remaining element of the planetary gear mechanism portion. A lock-up clutch connecting together the two or more elements of the planetary gear mechanism portion. A one-way clutch for restricting the rotation of the auxiliaryunit drive shaft in one direction, wherein the planetary gear mechanism portion, the motor, the lock-up clutch, and the auxiliary unit drive shaft are coaxially disposed in line.

A dynamotor capable of operating as either a motor or a generator is used with both the armature portion and the field portion thereof capable of being rotated. In the case where a pulley operatively interlocked with the output shaft of the prime mover is mounted on the rotary shaft of the armature portion, the drive shaft of the compressor is mounted on the rotating field portion. Once the dynamotor is operated in motor mode, the rotational speed of the compressor is increased to the sum of the input rotational speed and the rotational speed of the dynamotor. The compressor is stopped by disconnecting a power feed circuit. When the input rotational speed is too high, the dynamotor is operated in generator mode. In this way, the rotational speed is reduced in accordance with the generated electric energy.