Patents in subclass Rotary Kinetic Fluid Motors Or Pumps/Acting Serially But Nonalternating (E.G., Multistage, Etc.)
Parent class: Rotary Kinetic Fluid Motors Or Pumps
| Number | Patent title | Issue Date |
|---|---|---|
| 07090460 | Pump embodied as a side channel pump A side channel pump, preferably a vacuum pump, includes a driven rotor (16) and a fixed stator (14). The rotor (16) and the stator (14) define a pump channel circulating in a peripheral direction. Blades are fixed onto the rotor,... |
08/15/2006 |
| 06942447 | Impeller pumps An impeller pump (1) for a fluid includes a rotary impeller (5) and a pump housing (3, 4). The pump housing defines a first main flow channel (3a) and a second main flow channel (4a). A first inlet channel (3b) and a second inlet channel... |
09/13/2005 |
| 06932562 | Single stage, dual channel turbine fuel pump A single stage, dual channel turbine fuel pump for use in a vehicle fuel delivery system, generally including a lower casing, an upper casing, an impeller and a motor. Both the lower and upper casings have a pair of concentric, annular... |
08/23/2005 |
| 06893206 | Multi-stage fuel pump A multi-stage fuel pump has a drive assembly, a pump assembly including first and second pumping elements disposed between various plates of the pump assembly, and first and second pumping channels each having an inlet and an outlet... |
05/17/2005 |
| 06877949 | Pumping stage for a vacuum pump A pumping stage for a vacuum pump, has an improved geometry allowing an optimum trade-off to be achieved between the exhaust pressure and the pumping rate attained in that stage. In the pumping stage (1) the axial extension that is the... |
04/12/2005 |
| 06736607 | Low-pressure gas circuit for a compressor Compressor, comprising a sealed outer casing, inside which is arranged a gas compression stage driven by a motor arranged inside the outer casing. The lower part of the inner casing containing the motor is sealingly closed by a bottom,... |
05/18/2004 |
| 06733230 | Low noise impeller pumps An impeller pump has a pump casing (6) that defines a pump chamber. The pump chamber includes a first chamber (21) and a second chamber (22). An impeller (10) is rotatably disposed within the pump chamber. The impeller has a first groove... |
05/11/2004 |
| 06729841 | Turbine pump A turbine pump includes a casing having an inlet, an outlet and front and rear arc-shaped pump passages and an impeller. The impeller has plural impeller partitions respectively disposed between every two of the blades thereby forming... |
05/04/2004 |
| 06626639 | Vacuum pump A compound vacuum pump includes a regenerative section and a Holweck section. An annular abutment is formed on the radially innermost rotating cylinder of the Holweck section. The abutment acts to cause dust and foreign particles entering... |
09/30/2003 |
| 06607351 | Vacuum pumps with improved impeller configurations A vacuum pump includes a housing having an inlet port and an exhaust port, a plurality of vacuum pumping stages located within the housing and disposed between the inlet port and the exhaust port, and a motor. The vacuum pumping stages... |
08/19/2003 |
| 06394748 | Multi-stage side channel pump In a multi-stage side channel pump, the efficiency can be optimized in that the geometry of each subsequent stage (14) is adapted to the specific volume of the medium at the outlet of the preceding stage (12) by determining the dimensions... |
05/28/2002 |
| 6152689 | Self-priming type cetrifugal pump The invention provides a self-priming centrifugal pump capable of sucking up and pumping a highly viscous liquid containing muddy substances including a large amount of bubbles, and solid foreign matters, of preventing the flow of the... |
11/28/2000 |
| 6017183 | Flow pump In connection with a flow pump, particularly for the conveying of fuel from a fuel tank of a motor vehicle, with a pump chamber embodied in a pump housing which is bordered by two radially extending lateral walls (12), spaced apart from... |
01/25/2000 |
| 5596970 | Fuel pump for an automotive fuel delivery system A single fuel pump for a fuel delivery system supplies fuel from the fuel tank to a reservoir and also supplies fuel from the reservoir to the engine. The fuel pump has a single impeller having outer vanes and inner vanes radially inward... |
01/28/1997 |