-
公开(公告)号：US20240102482A1
公开(公告)日：2024-03-28
申请号：US17769086
申请日：2020-09-02
申请人： NIDEC GPM GmbH
IPC分类号： F04D29/16 , F04D29/041 , F04D29/62
CPC分类号： F04D29/167 , F04D29/0413 , F04D29/622 , F04D7/02
摘要： A coolant pump that includes: a rotating slide ring, which is arranged on the pump impeller towards an axial end of the entry opening; a static slide ring, which is arranged on the pump housing around the mouth of the inlet opposite the rotating slide ring; the rotating slide ring has a sliding surface and the static slide ring has a sliding surface, the sliding surfaces are facing one another and form a sliding bearing that receives a force directed axially away from the pump impeller to the pump housing; and a microstructure for creating a hydrodynamic lubricating film between the sliding surfaces is formed on at least one of the sliding surfaces facing one another, the microstructure includes cavities that collect liquid coolant on the at least one sliding surface.
-
公开(公告)号：US11306723B2
公开(公告)日：2022-04-19
申请号：US16961676
申请日：2018-11-21
申请人： NIDEC GPM GMBH
发明人： Franz Pawellek
IPC分类号： F04D13/06 , F04D29/04 , F01P5/10 , F01P5/12 , F04D13/12 , F04D29/043 , F04D29/046 , F04D29/06 , F04D29/10
摘要： An electrical coolant pump, preferably for use as an additional water pump in a vehicle, is characterised in that a radial bearing of the shaft, which is arranged between the pump impeller and the rotor, is provided by means of a radial sintered sliding bearing having a defined porosity lubricated by coolant, and a shaft seal is arranged between the radial sliding bearing and the motor chamber, wherein at least one coolant flow channel with a predetermined depth is provided in the sintered sliding bearing in an axial direction extending from the end of the sintered sliding bearing on the side of the pump chamber.
-
公开(公告)号：US11125244B2
公开(公告)日：2021-09-21
申请号：US16642313
申请日：2018-07-10
申请人： NIDEC GPM GmbH
发明人： Franz Pawellek , Conrad Nickel , Jens Hoffmann , Robin Büsch , Paul Ludwig , Jakob Schnitzer , Silvio Werner
IPC分类号： F04D29/10 , F04D13/06 , F04D29/046 , F04D29/06 , F04D29/42 , F04D29/22 , F01P5/10 , F01P3/20
摘要： An electric coolant pump is used as an auxiliary water pump in a vehicle. The pump includes radial mounting of the shaft (4) is provided by means of a coolant-lubricated radial sliding bearing (41) arranged between the pump impeller (2) and the rotor (32). A dry-running electric motor (3) with a radially inner stator (31) and a radially outer rotor (32) is accommodated in a motor chamber (13) separated from the pump chamber (10). A shaft seal (5) is between the radial sliding bearing (41) and the motor chamber (13). The rotor (32) is bell-shaped with an inner surface facing the shaft seal (5) and being fixed to the shaft seal (5) to axially overlap with the shaft (4). The motor chamber (13) has an opening to the atmosphere, which is closed by a liquid-tight pressure equalization membrane (6) that is permeable to vapor.
-
公开(公告)号：US11092159B2
公开(公告)日：2021-08-17
申请号：US16765260
申请日：2018-10-25
申请人： NIDEC GPM GmbH
发明人： Franz Pawellek , Conrad Nickel , Jens Hoffmann , Robin Büsch , Silvio Werner , Jakob Schnitzer , Paul Ludwig
IPC分类号： F04D13/06 , F04D29/18 , F04D29/10 , F04D29/06 , F04D29/046 , F04D29/043 , F01P5/10
摘要： In an electrical coolant pump, preferably for use as an additional water pump in a vehicle, a radial bearing of the shaft is provided by means of a radial slide bearing lubricated with coolant on the separating element which is disposed between the pump impeller and the rotor. A dry-running electric motor has a radially inner stator and a radially outer rotor is accommodated within the motor chamber. A shaft seal is disposed between the radial slide bearing and the motor chamber. The rotor is formed in a cup shape, the inner surface of which faces the shaft seal and is fixed to the shaft in an axially overlapping manner. The motor chamber has an opening to the atmosphere which is closed by a liquid-tight and vapor-permeable pressure equalizing membrane. The separating element is configured as a support flange with a separating portion and an axial projection into the motor chamber, to which the stator is attached. The control unit is disposed between the separating element and the stator in the axial direction.
-
公开(公告)号：US11092153B2
公开(公告)日：2021-08-17
申请号：US16344144
申请日：2017-10-05
申请人： NIDEC GPM GmbH
发明人： Franz Pawellek , Conrad Nickel
摘要： An electrically driven gerotor pump has a gerotor which comprises a stationary outer gerotor element with an inner toothing that is axially delimited by two chamber walls, wherein each chamber-forming foot section of the inner toothing is paired with a pressure valve which is connected to the outlet. The gerotor also comprises an inner gerotor element with an outer toothing which is guided in the outer gerotor element in a circumferential manner on an eccentric section of the shaft and is mounted in, a rotatable manner so as to mesh with the inner toothing.
-
公开(公告)号：US20200217314A1
公开(公告)日：2020-07-09
申请号：US16639159
申请日：2018-07-16
申请人： NIDEC GPM GmbH
发明人： Conrad Nickel , Franz Pawellek
摘要： The invention relates to an oscillating piston pump for liquid and gaseous fluids, comprising: a pump housing having at least two sector-shaped working chambers, which are diametrically opposed relative to a pivot axis arranged in-between; an oscillating piston, having at least two displacement portions which extend diametrically relative to the pivot axis and are each received pivotably in one of the working chambers; an electric drive, which moves the oscillating piston alternately on a pivot movement between two turning points delimited within the working chambers; a group of outlet valves, which ensure the discharge of a volume displaced from the working chambers to a pump outlet; and a group of inlet valves, which ensure the entry of a volume flowing into the working chambers from a pump inlet. The group of outlet valves or inlet valves is arranged on both sides of each working chamber and communicates through the pump housing with the pump outlet or the pump inlet. The other group of inlet valves or outlet valves is arranged in the oscillating piston and communicates via a cavity in the oscillating piston with the pump inlet or the pump outlet.
-
公开(公告)号：US11746827B2
公开(公告)日：2023-09-05
申请号：US17766012
申请日：2020-08-03
申请人： NIDEC GPM GmbH
发明人： Franz Pawellek , Marcel Berner
IPC分类号： F16C33/10 , F16C33/74 , F04D29/10 , F04D29/046 , F04D29/06
CPC分类号： F16C33/743 , F04D29/0462 , F04D29/061 , F04D29/108 , F16C33/104 , F16C2360/44
摘要： The invention relates to a shaft bearing having a seal arrangement to prevent steam leakages that can occur in the event of temperature fluctuations or pressure fluctuations between a liquid medium on the one side and a gaseous medium on the other side of the compact bearing, wherein, between a primary radial seal and a rotation bearing portion, a lubrication space surrounding a shaft circumference is arranged that receives a volume of lubricating grease that has a higher viscosity than a lubricating oil and a coolant; and a volume compensator for compensating a temperature-dependent volume fluctuation is provided that comprises a compressible material, and is arranged vertically in interaction with the volume of the lubricating oil and/or the volume of the lubricating grease.
-
8.发明授权公开(公告)号：US11708843B2
公开(公告)日：2023-07-25
申请号：US16976663
申请日：2018-12-13
申请人： NIDEC GPM GmbH
发明人： Conrad Nickel , Franz Pawellek , Jens Hoffmann
IPC分类号： F04D29/58 , F04D13/06 , F04D29/70 , F04D7/00 , F04D29/046
CPC分类号： F04D29/5806 , F04D13/06 , F04D29/586 , F04D29/5813 , F04D7/00 , F04D13/0653 , F04D29/046 , F04D29/588 , F04D29/708 , F05B2260/232
摘要： An electric coolant pump (1) conveys cooling fluid in order to cool a combustion engine of a vehicle. The electric coolant pump (1) has a pump impeller (2) for accelerating the coolant to be conveyed, a rotor shaft (3) on which the pump impeller (2) is fixed, an electric motor (6), having a stator (8) and a rotor (7), for driving the rotor shaft (3). A control circuit (13) controls the electric motor (6). A pump housing (10) accommodates at least the control circuit (13) and the electric motor (6). The coolant to be conveyed is able to flow through the pump housing (10). The coolant to be conveyed thereby flows around the stator (8), the rotor (6) and the control circuit (13).
-
公开(公告)号：US20220333597A1
公开(公告)日：2022-10-20
申请号：US17615963
申请日：2020-06-23
申请人： NIDEC GPM GMBH
发明人： Franz Pawellek
摘要： An electric screw coolant pump for integration into a temperature control circuit of an assembly of which the temperature is to be controlled. An accommodation housing includes a feeder line and a return line of the temperature control circuit, which open into a cavity. A part of the cavity surrounds a spindle housing and communicates with an outlet opening of the spindle housing as well as the feeder line. A sealing element, which provides a seal between a suction side and a pressure side, is arranged towards an end surface of the axial end of the inserted spindle housing.
-
公开(公告)号：US20210040949A1
公开(公告)日：2021-02-11
申请号：US16979778
申请日：2018-12-12
申请人： NIDEC GPM GmbH
发明人： Conrad Nickel , Franz Pawellek
摘要： A modular system for a pump structure for the axial integration of a selection of electric drive assemblies (1) at a selection of pump assemblies (2) and a shaft bearing assembly (3) which includes a pump shaft (31) and a shaft bearing (32) with at least two rolling bearing sets, the shaft bearing (32) supporting the pump shaft (31) between a motor rotor (1) of the electric drive assembly (1) and a pump rotor (21) of the pump assembly (2) at a pump housing (20) of the pump assembly (2); wherein the selection of pump assemblies (2) jointly comprises a collar portion (23) at the pump housing (20) which accommodates the shaft bearing (32) in a through-hole of the pump housing (20) and protrudes to an accommodation side for an electric drive unit (1); and the selection of pump assemblies (2) differs with respect to the pump rotor (21) and/or a pump chamber (22); the selection of drive assemblies (1) jointly comprises a motor rotor (11) which is formed at a radially external section in the shape of a rotor cup (13), the rotor cup (13) radially encircling and axially intersecting the collar portion (23) that each pump housing (20) of the selection of drive assemblies (1) jointly comprises; and the selection of drive assemblies (1) differs with respect to a stator (12); and wherein for each combination of the selection of electric drive assemblies (1) and the selection of pump assemblies (2), at least one radial dimension of the pump shaft, the shaft bearing, the collar portion (23) and/or the rotor cup (13) are the same.
-
-
-
-
-
-
-
-
-
搜索结果
22 条记录 (耗时 0.016 秒)
