High pressure internal gear pump has multi-part pump housing which defines pump chamber that has low pressure area, pressure build-up area and high pressure area

摘要

The high pressure internal gear pump has a multi-part pump housing (10) which defines a pump chamber (12) that has a low pressure area, a pressure build-up area and a high pressure area. A lubricating fluid channel is formed with or as a throttle channel, where the lubricating fluid channel is formed by the or with the bearing gap. A shaft sealing space (64) is charged with the hydraulic fluid over the throttle channel.