Patent application number | Description | Published |
20080272646 | HYDRAULIC APPARATUS FOR FLUID PRESSURE CONTROL - A hydraulic apparatus includes a fluid pressure control unit which includes: a housing unit enclosing a pump, a motor fixed to a first side surface of the housing unit; a control section provided on a second side surface of the housing unit and arranged to control the motor; and a physical quantity sensor fixed to the control section. There are further provided a plurality of mount portions to support the housing unit to a vehicle body elastically. The physical quantity sensor is located between the mount portions. | 11-06-2008 |
20100061872 | Gear Pump - A gear pump includes a drive shaft, a rotatable pump element mounted on the drive shaft, a side wall member disposed on one side of the pump element, and formed with a shaft hole through which the drive shaft extends, and a side plate disposed on the other side of the pump element. The gear pump further includes a connecting section connecting the drive shaft with the pump element in a manner to prevent relative rotation and to allow relative axial movement between the drive shaft and the pump element. The connecting section includes a drive recess formed in the pump element, and a drive projection projecting radially outwards from the drive shaft, and engaging in the drive recess to prevent the relative rotation. The drive projection is arranged to limit the axial movement of the drive shaft relative to the pump element with one of the side wall member and the side plate. | 03-11-2010 |
20100124513 | Gear Pump - A gear pump includes a gear to be driven by a drive shaft, a pair of side plate members adjoining side surfaces of the gear, respectively, to restrain leakage of an operating fluid, and a tip seal member or seal block for sealing the gear tip or circumference of the gear. At least one of the side plate members and the tip seal member are integral parts of a sealing member. | 05-20-2010 |
20100237689 | GEAR PUMP AND GEAR PUMP FOR BRAKE APPARATUS - A gear pump includes: a drive shaft; a first gear; a second gear; a first plate disposed between the first gear and the second gear, and arranged to liquid-tightly seal the first surfaces of the first and second gear; a pair of second plates disposed, respectively, on the second surfaces of the first and second gears, and arranged to liquid-tightly seal the second surfaces of the first and second gears, each of the second plates including a tooth top sealing portion having a seal surface arranged to seal a tooth top of the first gear and a tooth top of the second gear, and to form a suction portion with the first plate and the second plate; and an urging member arranged to urge the drive shaft toward the seal surface of the tooth top sealing portion of one of the first and second plates. | 09-23-2010 |
20100247362 | Gear Pump - A gear pump includes: a pump chamber formed in the housing; a gear disposed in the pump chamber; a side plate disposed between a wall of the pump chamber and the gear, and arranged to seal a side surface of the gear, the side plate including an annular receiving portion formed between the wall of the pump chamber and the side plate, the receiving portion having a bottom portion and a side wall portion; a seal member disposed in the receiving portion of the side plate, and arranged to liquid-tightly separate the low pressure chamber and the high pressure chamber of the pump chamber; a pressure introducing section arranged to introduce a pressure generated by the pump operation, to a space between the bottom portion of the receiving portion and the seal member, and thereby to separate the seal member away from the bottom portion of the receiving portion. | 09-30-2010 |
20110062773 | PUMP ASSEMBLY - A pump assembly including a housing, a pump unit having a low pressure portion and a high pressure portion and accommodated in a pump unit receiving portion which is formed in the housing, a suction passage, a low pressure chamber communicated with the suction passage and the low pressure portion, and a discharge passage, wherein when the pump unit is accommodated in the pump unit receiving portion, the low pressure chamber is formed between the pump unit and a wall surface of the housing which defines the pump unit receiving portion, and the discharge passage is formed by a communication pipe which extends through the low pressure chamber and communicates the housing and the high pressure portion of the pump unit with each other. | 03-17-2011 |
20120242140 | PUMP DEVICE - A pump device comprising a first side plate arranged at one axial side of a drive gear and having a first contact surface contacting to a first side surface of the drive gear, a friction coefficient of the first contact surface being smaller than that of the first side surface of the drive gear, a second side plate arranged at the other axial side of the drive gear and having a second contact surface contacting to a second side surface of the drive gear, a friction coefficient of the second contact surface being smaller than that of the second side surface of the drive gear and a seal member incorporated with the first and second side plates to constitute a pump chamber, the seal member sealing tops of teeth of the drive gear and having a friction coefficient that is smaller than that of the tops of the teeth. | 09-27-2012 |
20140003981 | Pump Device | 01-02-2014 |
20140294649 | Pump Device - In a hollow seal member kept in abutted-engagement with a shaft hole formed in a housing via an elastic body and kept in sliding-contact with an outer circumference of a drive shaft for sealing against a leakage of fluid from a pump chamber, the seal member is provided with a seal part formed within an area at one end and kept in sliding-contact with the outer circumference of the drive shaft over a given hollow inner circumferential surface, and a rotation-stopping part formed within an area at the other end for restricting a movement of the seal member in a rotation direction of the drive shaft. A rotational resistance of the rotation-stopping part to the drive shaft is set to be less than a rotational resistance of the seal part. | 10-02-2014 |
20150061358 | BRAKE DEVICE - A master cylinder | 03-05-2015 |
20150061361 | Brake Device - Provided is a brake device that can increase energy efficiency. The present invention is provided with: a master cylinder ( | 03-05-2015 |