摘要:
The present invention manufactures a steel sheet for a rotor core for an IPM motor, wherein the steel sheet has a magnetic flux density B 8000 of 1.65 T or more as measured when magnetic field strength is 8000 A/m, and a residual magnetic flux density Br of 0.5 T or more as measured at that time, and optionally, a coercivity Hc of 100 A/m or more as measured after magnetization reaches 8000 A/m. By using the steel sheet manufactured according to the present invention for a rotor core of an IPM motor, it is possible to increase further an output torque in a high-speed rotational range and raise further the maximum rotational speed.
摘要:
A power generator for use in a bore, the power generator comprising at least one drivable member; and at least one generation apparatus; the generation apparatus comprising at least one generator magnet for producing a magnetic field; and at least one electrically conductive member located or locatable within the magnetic field; wherein the drivable member is drivable by fluid flowing in the bore so as to produce relative motion of the at least one magnet and the at least one electrically conductive member in order to induce a current in the at least one electrically conductive member.
摘要:
Die vorliegende Erfindung betrifft eine programmierbare Elektronikbaugruppe, umfassend eine Leiterplatte (1) mit elektrischen Leiterbahnen (1a) und auf den Leiterbahnen (1 a) kontaktierte Elektronikbauteile (5) einschließlich eines programmierbaren Elektronikbauteils (4), insbesondere eines Sensor-Bauteils wie einen Encoder oder einen Bewegungssensor, sowie mit den Leiterbahnen (1 a) verbundene elektrische Kontaktflächen (17) zum Kontaktieren von Kontaktierstiften einer externen Programmiereinheit. Die Leiterplatte (1) weist einen die Elektronikbauteile (4, 5) aufweisenden Montageabschnitt (6) sowie einen von diesem wegführenden Anschlussabschnitt (7) auf und an dem Montageabschnitt (6) ist ein Fortsatz (8) der Leiterplatte (1) ausgebildet, der die elektrischen Kontaktflächen (17) zum Anschluss der Kontaktierstifte (36) aufweist, und der über einen Materialschwächungsbereich (12) mit dem Montageabschnitt (6) verbunden ist.
摘要:
The invention relates to an electric machine such as for example, an electric generator comprising a lock system (3) which enables a monitoring device (27) to be housed in the machine (1) such that the generator is not required to be purged.
摘要:
The present invention manufactures a steel sheet for a rotor core for an IPM motor, wherein the steel sheet has a magnetic flux density B 8000 of 1.65 T or more as measured when magnetic field strength is 8000 A/m, and a residual magnetic flux density Br of 0.5 T or more as measured at that time, and optionally, a coercivity Hc of 100 A/m or more as measured after magnetization reaches 8000 A/m. By using the steel sheet manufactured according to the present invention for a rotor core of an IPM motor, it is possible to increase further an output torque in a high-speed rotational range and raise further the maximum rotational speed.
摘要:
A valve body 118 in a passage 116 of a housing 110 connected to a through hole 14 in a sealed machine casing 12 can allow an inspection apparatus 106 into an interior of the casing 12 when open, and prevents fluid flow through the passage 116 when closed. Seals can engage the inspection apparatus to prevent fluid flow through the passage 116 during inspection or inspection apparatus movement. A guide conduit 200 in the casing 12 can include branches and can guide the inspection apparatus 106 to multiple inspection sites. Guide marks can identify the branches to assist with navigation within the casing 12.
摘要:
The invention relates to a method for monitoring the state of a bearing (13) guiding an electric motor (1) on a shaft (2), comprising the steps of: determining (S100) a first measure m1 for a first distance a 1 between a reference point on a housing (12) of the electric motor (1) and a reference point on a rotor (10) of the electric motor (1) in the axial direction of the shaft (2) at a first point in time t 1 at which the electric motor (1) has a negative torque; determining (S200) a second measure m 2 for a second distance a 2 between the reference point on the housing (12) and the reference point on the rotor (10) in the axial direction of the shaft (2) at a second point in time t 2 at which the electric motor (1) has a positive torque; comparing (S300) the difference m 1 -m 2 between the first measure m 1 and the second measure m 2 with a threshold value m s ; and recognising (S400) a critical state of the bearing (13) depending on the result of comparing the difference m 1 -m 2 with the threshold value m s .