Milwaukee, WI, United States
Milwaukee, WI, United States

Eaton Corporation Plc is an American multinational power management company headquartered in Ireland providing solutions to its customers to manage electrical, hydraulic and mechanical power efficiently, safely and sustainably. Eaton acquired Cooper Industries in November 2012. The 2013 revenue of the combined companies was $22.0 billion. Eaton has approximately 101,000 employees and sells products to customers in more than 175 countries. Wikipedia.


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Patent
Eaton Corporation | Date: 2017-03-22

An anti-rotation guide for a lifter in an overhead valve valvetrain. The anti-rotation guide includes a plug having two lobes connected through a neck region. A first lobe of the plug is held within a bore in the lifter. The bore forms an opening at the edge of the lifter through which the neck of the plug emerges. The bore in the lifter accommodates a first lobe of the plug that is wider than the opening in the edge of the lifter, whereby the plug is shaped to prevent its slipping from the lifter through the opening. The lifter reciprocates in a first bore in the cylinder head. The second lobe of the plug extends outward from the lifter into a second bore formed in the cylinder head and adjoining the first bore. The second lobe reciprocates in the second bore and limits rotation of the lifter.


Patent
Eaton Corporation | Date: 2017-03-22

A system includes a three phase AC or brushless DC motor, an inverter and a controller. The inverter is electrically coupled to the motor. The controller is -electrically coupled to the inverter. The controller is configured to control the inverter to deliver a three phase pulse width modulated voltage to the AC motor, wherein the three phase pulse width modulation comprises a repeating two-cycle pattern.


Patent
Eaton Corporation | Date: 2017-03-29

A hydraulic lash adjuster (HLA) and an arrangement for a valve train assembly comprising an HLA are presented. A valve train component comprises a first body that defines a first bore. The HLA comprises a second body that defines a second bore and a plunger. In use, a first end of the plunger is mounted within the first bore, and a second end of the plunger is mounted within the second bore for reciprocal sliding movement with respect to the second body. The second body and the plunger define a first chamber for containing a hydraulic fluid and the plunger defines a second chamber for supplying hydraulic fluid to the first chamber through a valve located between the first and second chambers in response to movement of the plunger increasing the volume of the first chamber. In use, all of the second body is located outside of the first body.


Patent
Eaton Corporation | Date: 2017-01-11

A UPS circuit, comprising a rectification phase leg (PL1) for rectification, which is used for converting a received alternating current into a direct current; inversion phase legs (PL21, PL22, PL23) for inversion, which are used for inverting the direct current output by the rectification phase leg into an alternating current; a failure detection device (D) which is used for detecting whether an inversion phase leg has failed; a redundant inversion phase leg (PL2a), with an input end thereof being connected to an output end of the rectification phase leg; and a control device which is used for receiving a signal sent by the failure detection device and is also used for enabling the redundant inversion phase leg to replace the inversion phase leg which has failed when a failure occurs.


Patent
Eaton Corporation | Date: 2017-02-08

A valve train assembly (1), comprises: a valve bridge assembly, the valve bridge assembly comprising: a valve bridge (27); a first cavity (45) formed towards a first end portion of the valve bridge (27) and a hydraulic lash adjuster (HLA) (47) disposed within the first cavity (45) for engaging a first valve stem (29a). The valve train assembly (1) further comprises: a pivotally mounted first rocker arm (5, 7) for engaging the valve bridge (27) and pivoting in response to a rotating first cam to cause a first valve lift event in an engine cycle. The first rocker arm (5, 7) comprises: a rocker arm cavity formed within an end portion thereof and a control capsule (112) disposed within the rocker arm cavity, wherein the control capsule (112) is configurable in an ON configuration and an OFF configuration, wherein, in the ON configuration pivoting of the first rocker arm (5, 7) causes the first valve lift event and, in the OFF configuration, the control capsule (112) prevents the pivoting of the first rocker arm (5, 7) from causing the first valve lift event.


Patent
Eaton Corporation | Date: 2017-01-04

A method of operating an engine exhaust brake system, the method comprises:closing a valve (37) in an exhaust manifold (39) to generate back pressure in the exhaust manifold (39); causing a hydraulic lash adjuster (13) to extend in order to remove lash introduced into a valve train assembly (1) as a result of an exhaust valve (7) opening in response to the back pressure in the exhaust manifold (39); and opening a pressure relief valve (80) in the hydraulic lash adjuster (13) to drain hydraulic fluid from the hydraulic lash adjuster (13) to enable the hydraulic lash adjuster (13) to retract to enable the exhaust valve (7) to close.


Patent
Eaton Corporation | Date: 2017-02-08

A valve bridge assembly for a valve train assembly (1), the valve bridge assembly comprises: a valve bridge (27); a first cavity (45) formed towards a first end portion of the valve bridge (27) and a hydraulic lash adjuster (HLA) (47) disposed within the first cavity (45) for engaging a first valve stem (29a). The HLA (47) comprises a first contact surface (47a) for engaging the first valve stem (29a) and the first contact surface (47a) is curved.


Patent
Eaton Corporation | Date: 2017-03-22

An internal combustion engine includes a cylinder head, a poppet valve having a seat within the cylinder head, a cam shaft on which is mounted an eccentrically shaped cam, and a rocker arm assembly comprising a rocker arm, a cam follower, and an electromagnetically actuated lash adjuster. The lash adjuster provides a continuously variable length fulcrum for the rocker arm. The actuator may be a piezoelectric stepper motor. The lash adjuster may be operative to vary a rate of internal exhaust gas recirculation and without requiring crank angle data.


An energy conserving hydraulic system for a mobile work machine includes a prime mover, a drivetrain, a baseline hydraulic system, a power-take-off, a transformer, a work implement, and an accumulator. The drivetrain may include an automated manual transmission (AMT) that is rotationally coupled to the prime mover and the power-take-off. The baseline hydraulic system is powered by the prime mover and includes a first hydraulic circuit. The transformer is hydraulically coupled to second and third hydraulic circuits. The work implement is actuated by an actuator that is adapted to be simultaneously hydraulically coupled to the first and the second hydraulic circuits. The power-take-off is adapted to exchange shaft power with the transmission. A clutch selectively rotationally couples the transmission and the power-take-off. The accumulator is hydraulically coupled to the second hydraulic circuit. The second hydraulic circuit is hydraulically coupled to a first rotating group of the hydraulic transformer, and a third hydraulic circuit is hydraulically coupled to a second rotating group of the hydraulic transformer.


Patent
Eaton Corporation | Date: 2017-03-22

A linear actuator assembly (200,200,200) is for an electrical switching apparatus (100,100,100), such as a multi-pole circuit breaker. The circuit breaker includes a plurality of pole units (102,104,106;102,104,106,102,104,106) each having separable contacts (110). The linear actuator assembly (200,200,200) includes a base unit (202,202,202) comprising a housing (204,204,204), and a plurality of linear actuators (302,304,306;302,304,306;302,304,306). Each linear actuator (302,304,306;302,304,306;302,304,306) is mounted within the housing (204,204,204) in alignment with a corresponding one of the pole units (102,104,106;102,104,106;102,104,106). Each linear actuator (302,304,306;302,304,306;302,304,306) actuates the separable contacts (110) of the corresponding one of the pole units (102,104,106;102,104,106;102,104,106). A controller (402) is adapted to control actuation of the linear actuators (302,304,306;302,304,306;302,304,306).

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