摘要:
The present invention relates to an electromagnetic actuator which reduces power consumption at the time of continuous operation with maintaining controllability. The electromagnetic actuator includes therein a permanent magnet (4) and a switching electromagnet coil (6) which switches a route along which this magnetic flux passes, and is constructed so that, in the case of performing the continuous operation, the magnetic flux of the permanent magnet (4) may pass along a route, which includes an armature (3), by exciting the switching electromagnet coil (6).
摘要:
A transmission employs a drum type gear selector having circumferential pads (45) employing driving pad geometry, which allows a pad to be in full contact with the drum. Each pad has its centre of gravity "Cg" on the left side of pivot point (53) so that the pad s centrifugal force "Cf" keeps the pad out of contact with the drum when it rotates in neutral. A spring (54) has one end hooked into a slot (55) of pad (45) and its other end is anchored at point (56), and also resting on the hydraulic spring at Point (S2). The spring (54) arrangement and its shape allow spring (54) to act in two major directions required for proper operation of pad (45). One action is to pull pad (45) about its pivot point (54) to a neutral position (45A) by rotating pad (45) about pivot (53) for distance "H1" moving Point (P1) into Point (P2). At the same time when the pad is pulled to position (45A), the hydraulic spring (49) is rotated about its pivot Point (S1) to position (47A). These two movements place the pad (45) in its rest position with clearance gaps "G1" and "G2" at rear and front of the pad respectively. It has to be noted that centrifugal force "Cf" is a major force, which keeps the pads in a neutral position when gears are in free operating mode.
摘要:
A negative pressure pump (10) has: a casing (20) into which a drive shaft (100) is inserted; a pump portion (30) that produces negative pressure as a result of the rotation of the drive shaft being transmitted to a driven shaft (40); a drive-side clutch plate (46) that rotates integrally with the drive shaft, is movable in an axial direction of the drive shaft, and is magnetic; a driven-side clutch plate (48) that rotates integrally with the driven shaft and transmits the rotation of the drive shaft to the driven shaft as a result of the drive-side clutch plate becoming engaged with it; a coil spring (56) that presses the drive-side clutch plate against the driven-side clutch plate; an electromagnet (52) that produces a magnetic force counter to a pressing force and pulls the drive-side clutch plate away from the driven-side clutch plate; and a jutting wall portion (38) that is disposed in the casing and receives the driven-side clutch plate on which the pressing force acts and a jutting wall portion (28) that supports one end portion of the coil spring.
摘要:
Dispositif d'embrayage (400) de véhicule automobile comportant au moins un premier élément de couplage (401) solidaire d'un arbre d'embrayage (260) lui-même lié au moteur d'entraînement du véhicule par l'intermédiaire d'un volant moteur (100) et un second élément de couplage (404) lié à l'arbre d'entrée (510) de la boîte de vitesses, caractérisé en ce que les moyens de couplage sont coniques et sont séparés du volant moteur (100).
摘要:
A rotary power tool (10) comprising a housing, a motor (18) supported by the housing, an output member (142) that selectively receives torque from the motor (18), causing the output member (142) to rotate, an electromagnetic clutch mechanism (118) switchable between a first state, in which torque is transferred from the motor (18) to the output member (142), and a second state in which the output member (142) does not receive torque from the motor (18), and a braking member for braking the output member (142) when the electromagnetic clutch mechanism (118) is switched from the first state to the second state, wherein the electromagnetic clutch mechanism (118) is switched from the first state to the second state when a condition is detected.
摘要:
The invention refers to a switchable mechanical automotive coolant pump (10) comprising a pump rotor (60) including a pump wheel (18) for pumping the coolant liquid, a pulley wheel (40) arranged to be mechanically driven by an automotive engine, and an electromagnetic friction clutch arrangement with a dry friction clutch (50) for connecting or disconnecting the pulley wheel (40) and the pump rotor (60), and an electromagnet (30) switching the friction clutch (50) between an engaged and a disengaged state. The friction clutch (50) comprises a pulley-sided conical friction surface (52) and a corresponding rotor-sided conical friction surface (54). The conical design of the friction clutch 50 allows a compact coolant pump design.
摘要:
The invention relates to an electromagnetic clutch (4) which is used to connect a steam engine (2) to a combustion engine (3) and which comprises a first shaft (8) that can be driven by the steam engine (2), and a second shaft (9) that can be driven by the combustion engine (3), an idler gear (23) being connected to the first shaft (8) and a clutch bell (26) being connected to the second shaft (9). A freewheel (27) is provided between the idler gear (23) and the clutch bell (26) and is used to transmit a rotational movement from the idler gear (23), which is connected to the first shaft (8), onto the clutch bell (26) and allows the clutch bell (26) to freewheel in relation to the idler gear (23). An electromagnetic actuation force can furthermore generate a frictional force between the idler gear (23) and the clutch bell (26) to carry along the steam engine (2).