An electric coolant pump may include a valve device controlled at a discharge side by pressure. The valve device may include a coolant inlet, a first coolant outlet, and a second coolant outlet. The valve device may be configured to at least one of open and close at least one of the first coolant outlet and the second coolant outlet based on a selected operating point and a pressure in a coolant.

A pump for recirculating the cooling liquid of combustion engines, in particular of vehicles, with a hybrid control system that includes an electromagnetic friction coupling and electric motor. The pump is capable of recirculating cooling liquids to produce a variation in the speed of the rotation of the impeller depending on the requirements of the engine.

Systems and methods for simultaneously performing engine coolant stagnation and exhaust gas recirculation (EGR) cooler cooling in an engine include providing a coolant circuit configured to flow coolant through both a block of the engine and an EGR cooler of a cooled EGR (CEGR) system of the engine, a main pump on the coolant circuit that is driven by an electric motor or a crankshaft of the engine to pump coolant through a block of the engine, and a secondary pump on the coolant circuit that, when energized, is configured to pump coolant through the coolant circuit, and, during a cold start of the engine, de-energizing the electric motor or disconnecting the main pump from the engine crankshaft to stagnate coolant in the engine block and energizing the secondary pump to flow coolant through the EGR cooler of the CEGR system.

A water pump of an engine cooling system includes a thermal valve that divides an outlet space of a pump housing of an outlet port, through which the engine coolant pumped into the internal space of a pump housing is discharged, into a front end discharge region and a rear end discharge region. The thermal valve also forms a dual flow path through which the engine coolant is discharged to the front end discharge region and the rear end discharge region according to the increase of the coolant temperature. The cooling of a cylinder block and a cylinder head of an engine are thus separately adjusted.

Pump for recirculating a cooling liquid of a vehicle, comprising: a pump body (11) and an impeller (1) mounted on a driven shaft (2), coaxial with each other a first device (100) for transmitting to the driven shaft (2) the movement generated by the shaft of the combustion engine of the vehicle and comprising movement receiving means suitable for connection (103) with said shaft of the combustion engine; a friction coupling (120) of the electromagnetic type, connected to said movement receiving means (121); a second device (200) for generating a movement for the driven shaft (2) independently of the first movement transmission device (100) and comprising an electric motor (250) with stator (251) and rotor (253); connection means (3,4,4a) rotationally integral with the driven shaft (2); whereinthe rotor (253) of the electric motor (250) is rotationally integral with the means for connection to the driven shaft (2); the electromagnetic friction coupling (120) is arranged so as to connect/disconnect the first device (10) for transmission of the movement to the means (3,4,4a) for connection to the driven shaft; andsaid electric motor (250) is arranged in a position axially on the outside of the electromagnetic friction coupling (120) and on the opposite side to the latter with respect to the impeller (1).

A surgical stapler including an anvil, a staple cartridge, and a buttress material removably retained to the anvil and/or staple cartridge. In various embodiments, the staple cartridge can include at least one staple removably stored therein which can, when deployed, or fired, therefrom, contact the buttress material and remove the buttress material from the anvil and/or staple cartridge. In at least one embodiment, the anvil can include at least one lip and/or groove configured to removably retain the buttress material to the anvil until deformable members extending from the surgical staple are bent by the anvil and are directed toward and contact the buttress material.

A motor vehicle may include an internal combustion engine, a radiator, a heat exchanger, a coolant pump, and a valve device arranged separately therefrom, which is controlled at an intake side by pressure. The valve device may include at least one first coolant inlet, at least one second coolant inlet, and a coolant outlet connected to an inlet of the coolant pump. The valve device may be configured to, based on a selected operating point of the coolant pump and a pressure in a coolant, at least one of open and close at least one of the at least one first coolant inlet and the at least one second coolant inlet. The at least one first coolant inlet and a coolant outlet of the coolant pump may be connected to the internal combustion engine, and the at least one second coolant inlet may be connected to the radiator.

An internal combustion engine including a cooling liquid circuit, which is connected to a cylinder head and an engine block of the internal combustion engine and which includes a cooling liquid pump. The cooling liquid pump includes a drive shaft and is capable of conveying cooling liquid in the cooling liquid circuit. Further, the internal combustion engine includes a Visco clutch. The Visco clutch is arranged for the drive by the internal combustion engine. The Visco clutch includes a clutch fluid for torque transmission. At the output side, the Visco clutch is connected to the drive shaft of the cooling liquid pump. The drive shaft of the cooling liquid pump include at least one heat pipe. The heat pipe is in heat exchange with the clutch fluid as a heat source and the cooling liquid as a heat sink.

A water pump (1) according to the present invention comprises an electromagnetic clutch (60) that switches between a transmission state where a pump pulley (20) and an armature (83) of an armature assy (80) are made to frictionally engage to transmit drive force of the pump pulley (20) to a pump shaft (30) and a cutoff state where frictional engagement of the pump pulley (20) and the armature (83) of the armature assy (80) is released to cut off transmission of drive force from the pump pulley (20) to the pump shaft (30), and a flange member (120) provided on the armature assy (80) to rotate integrally with the pump shaft (30) and is configured such that when in the cutoff state, by magnetic attractive force between a permanent magnet (111) of the pump pulley (20) and a permanent magnet (131) of the flange member (120), the flange member (120) is rotated together with the rotation of the pump pulley (20).

A surgical stapler including an anvil, a staple cartridge, and a buttress material removably retained to the anvil and/or staple cartridge. In various embodiments, the staple cartridge can include at least one staple removably stored therein which can, when deployed, or fired, therefrom, contact the buttress material and remove the buttress material from the anvil and/or staple cartridge. In at least one embodiment, the anvil can include at least one lip and/or groove configured to removably retain the buttress material to the anvil until deformable members extending from the surgical staple are bent by the anvil and are directed toward and contact the buttress material.