Driving arrangement (11) for a pump, compressor or similar, adapted to provide alternating pressure in at least two chambers (27a, 27b, 27′, 27″), such as chambers of a pump or compressor, as result of a reciprocating movement of a bar element (23). The bar element is connected to two movable pressu
Driving arrangement (11) for a pump, compressor or similar, adapted to provide alternating pressure in at least two chambers (27a, 27b, 27′, 27″), such as chambers of a pump or compressor, as result of a reciprocating movement of a bar element (23). The bar element is connected to two movable pressure chamber faces being pistons (21a, 21b) or plungers having fluid connection to said chambers, which bar element (23) is reciprocally supported in a housing (19). The driving arrangement further comprises an electric motor (31) which is adapted to provide the reciprocating movement of the bar element (23). The bar element extends through the rotor (31b) of the electric motor (31). The electric motor is an electric rotary motor. The invention also relates to a pump assembly with a plurality of such driving arrangements.
대표청구항▼
1. A driving arrangement for a pump or compressor or similar, that provides alternating pressure in at least two chambers of the pump or the compressor or similar, as a result of a reciprocating movement of a bar element, the bar element at its respective ends is connected to a movable pressure cham
1. A driving arrangement for a pump or compressor or similar, that provides alternating pressure in at least two chambers of the pump or the compressor or similar, as a result of a reciprocating movement of a bar element, the bar element at its respective ends is connected to a movable pressure chamber face, the movable pressure chamber face is a piston or plunger, the bar element is reciprocally supported in a housing and wherein the driving arrangement further comprises an electric motor that provides the reciprocating movement of the bar element; wherein the electric motor is an electric permanent magnet rotary motor;wherein the bar element extends through the rotor of the electric motor and a rotational to linear transformation means is functionally connected between the bar element and the rotor of the motor in such way that rotation of the rotor results in linear movement of the bar element;wherein a linear guide is functionally connected between the bar element and the housing in such way as to prevent rotation of the bar element with respect to the housing;wherein the driving arrangement further comprises a release mechanism having a first clutch part connected to the linear guide and a second clutch part connected to the housing; andwherein at excessive rotational force between the first and second clutch parts the rotational connection between the first and second clutch parts will slip letting the bar element rotate along with the rotor of the motor and halting its linear movement. 2. The driving arrangement according to claim 1, wherein the driving arrangement may be ready for use immediately after an actuation of the release mechanism. 3. The driving arrangement according to claim 1, wherein functional features of the release mechanism are based on magnets or friction. 4. The driving arrangement according to claim 1, wherein the driving arrangement comprises spring means that dampen excessive longitudinal movements of the bar element. 5. The driving arrangement according to claim 4, wherein the spring means is arranged on one axial side of the electric motor and dampens excessive longitudinal movements of the bar element, as the spring means is compressed in a first direction by a first sleeve at excessive movement of the bar element in a first direction, and in a second direction by a second sleeve at excessive movement of the bar element in a second direction. 6. A pump assembly comprising: two driving arrangements, wherein each driving arrangement is separately connected to two pumps or compressors;wherein the two driving arrangements are controlled on a basis of an actual behavior of another of the driving arrangements to maintain a constant sum of respective instantaneous speeds of the two driving arrangements;wherein each of the two driving arrangements provides alternating pressure in chambers of said separately connected two pumps or compressors as result of a reciprocating movement of a respective bar element in each driving arrangement;wherein the bar elements are reciprocally supported in a housing of the two driving arrangements and wherein each driving arrangement further comprises an electric motor that provides the reciprocating movement of the bar element;wherein the electric motor is an electric permanent magnet rotary motor;wherein the bar elements extend through the rotor of the respective electric motor and a rotational to linear transformation means is functionally connected between the bar element and the rotor of the motor in such way that rotation of the rotor results in linear movement of the bar element;wherein the bar elements are each connected to a pair of pistons or plungers, which pistons or plungers provide said alternating pressure; andwherein the two pumps or compressors are of a type adapted for pumping or compressing a fluid when driven by said alternating pressure. 7. The pump assembly according to claim 6, wherein the bar elements of the two driving arrangements are run with a phase difference of 90 degrees in a constant reciprocating movement. 8. The pump assembly according to claim 7, wherein acceleration of the bar elements and the electric motor, respectively, when moving between two end points of a reciprocating moving path of respective bar elements, always has an absolute value larger than zero. 9. The pump assembly according to claim 8, wherein the acceleration of the bar elements and the electric motor, respectively, when moving between the two end points of the reciprocating moving path of the respective bar elements exhibit a constant absolute acceleration value. 10. A driving arrangement for a pump or compressor or similar, that provides alternating pressure in at least two chambers, such as chambers of the pump or the compressor, as a result of a reciprocating movement of a bar element, wherein the bar element at respective ends is connected to a movable pressure chamber face being formed as a piston, wherein the bar element is reciprocally supported in a housing, and wherein the driving arrangement further comprises an electric motor that provides the reciprocating movement of the bar element; wherein the electric motor is an electric rotary motor;wherein the bar element extends through the rotor of the electric motor and that a rotational to linear transformation means is functionally connected between the bar element and the rotor of the motor, in such way that rotation of the rotor results in linear movement of the bar element;wherein the rotor of the electric motor and the rotational to linear transformation means are arranged in a fluid chamber which is confined by at least said housing and said pistons and that the fluid chamber is filled with a liquid; andwherein the liquid is flowed past the rotor of the motor when the bar element reciprocates. 11. The driving arrangement according to claim 10, wherein the fluid chamber is pressurized to a higher pressure than a pressure on opposite sides of the pistons. 12. A pump assembly comprising: two driving arrangements, wherein each driving arrangement is separately connected to two pumps or compressors;wherein each of the two driving arrangements provides alternating pressure in chambers of said separately connected two pumps or compressors as result of a reciprocating movement of a respective bar element in each driving arrangement;wherein the bar elements are reciprocally supported in a housing of the two driving arrangements and wherein each driving arrangement further comprises an electric motor that provides the reciprocating movement of the bar element, and wherein the bar elements of the two driving arrangements are run with a phase difference of 90 degrees in a constant reciprocating movement;wherein the electric motor is an electric permanent magnet rotary motor;wherein the two driving arrangements generate electric energy by use of their electric motor, at retardation of a movement of the electric rotary motor, the generated energy is transferred to the electric motor of the other driving arrangement in the pump assembly during an acceleration phase of another driving arrangement, or fed back to a power source;wherein the bar elements extend through the rotor of the respective electric motor and a rotational to linear transformation means is functionally connected between the bar element and the rotor of the motor in such way that rotation of the rotor results in linear movement of the bar element;wherein the bar elements are each connected to a pair of pistons or plungers, which pistons or plungers provide said alternating pressure; andwherein the two pumps or compressors are of a type adapted for pumping or compressing a fluid when driven by said alternating pressure. 13. The pump assembly according to claim 12, wherein acceleration of the bar elements and the electric motor, respectively, when moving between two end points of a reciprocating moving path of respective bar elements, always has an absolute value larger than zero. 14. The pump assembly according to claim 13, wherein the acceleration of the bar elements and the electric motor, respectively, when moving between the two end points of the reciprocating moving path of the respective bar elements exhibit a constant acceleration value. 15. The pump assembly according to claim 12, wherein the two driving arrangements are controlled on a basis of an actual behavior of another of the driving arrangements to maintain a constant sum of respective instantaneous speeds of the two driving arrangements.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.