| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 418199000 | Multiple units | 6 |
| 20100260638 | GEAR PUMP - A gear pump includes: a first pump constructed from a first drive gear rotated by driving of a drive shaft and a first driven gear rotatably arranged coaxially with a rotary shaft; and a second pump constructed from a second drive gear rotatably provided coaxially with the rotary shaft and a second driven gear. The rotary shaft allows the first driven gear and the second drive gear to engage with and disengage from each other in a rotation direction by movement to an axial direction. When the discharge pressure is higher than predetermined pressure, rotation of the first driven gear is not transmitted to the second drive gear and only the first pump operates. When the discharge pressure becomes the predetermined pressure or less, the rotation of the first driven gear is transmitted to the second drive gear and the first and the second pumps operate. | 10-14-2010 |
| 20100322810 | PUMP ASSEMBLY FOR SYNCHRONOUS PRESSURIZATION OF TWO FLUID CIRCUITS - The invention relates to a pump assembly for the synchronous pressurization of two fluid circuits. Two internal gear pumps are disposed together in a pump housing and rotationally driven by drive shafts thereof. Pinions of the pumps are located in an associated pump chamber and engage in an internal gear thereof. The pump chambers of the internal gear pumps are separated from each other by a common separating wall or partition, which is designed as a separate housing part and engages in a hollow cross-section of a housing part forming the circumferential wall of one of the internal gear pumps. Suction channels and pressure channels associated with the internal gear pumps transition into a radially extending longitudinal section in the pump housing following an axial longitudinal section in the lateral boundary wall of the associated pump chamber. According to the invention, a suction channel and a pressure channel of one of the internal gear pumps are integrated in the separating wall. | 12-23-2010 |
| 20150337836 | Gear Pump - A gear pump ( | 11-26-2015 |
| 20160046271 | Internal Gear Pump - An internal gear pump, in particular a hydraulic pump for a slip-controlled vehicle braking system, is configured to be pre-assembled. The internal gear pump includes a cartridge configured as a casing, which is configured to be inserted in a receptacle in a hydraulic block of a vehicle braking system. | 02-18-2016 |
| 418200000 | With axially spaced working members | 2 |
| 20090214372 | Remote Hot Melt Adhesive Metering Station - A new and improved remote, hot melt adhesive metering station ( | 08-27-2009 |
| 20150361977 | OIL PUMP FOR AUTOMATIC TRANSMISSION - An oil pump apparatus may include a housing provided with at least one hydraulic line formed therein, a power source assembled to the housing and configured to apply torque through a drive shaft, and two pumps disposed respectively at both end portions of the housing concentrically with the drive shaft, operably connected to each other through a torque delivery shaft, and pumping oil by receiving the torque from the drive shaft, wherein an inner rotor of one pump may be operably connected to the drive shaft, integrally formed with a boss portion, and operably connected to the torque delivery shaft operably connected to an inner rotor of the other pump through the boss portion. | 12-17-2015 |
