TRIPLE GEAR PUMP AND FLUID SUPPLYING DEVICE

WIPO Patent Application WO2017009994

A1

This gear pump is provided with: a driving gear, a first driven gear, and a second driven gear that are engaged with each other; a housing that houses those and that has formed therein a flow path including a first intake port, a second intake port, a first expulsion port, and a second expulsion port; a floating bearing including a thrust surface that bears a floating force in a drive shaft direction received from a fluid, and a first pressure receiving surface, a second pressure receiving surface, and a third pressure receiving surface, each facing a direction opposing the thrust surface; a first pressurization chamber that is held between the first pressure receiving surface and the housing, that is in fluid communication with the first expulsion port or the second expulsion port, and that applies pressure on the first pressure receiving surface; a second pressurization chamber that is held between the second pressure receiving surface and the housing, that is in fluid communication with the first intake port, and that applies pressure on the second pressure receiving surface; and a third pressurization chamber that is held between the third pressure receiving surface and the housing, that is in fluid communication with the second intake port, and that applies pressure on the third pressure receiving surface.

JP2019112976	ELECTRIC OIL PUMP
JP4589705	Leakage inspection method and equipment for hydraulic equipment

TAKAMIYA KENJI (JP)
MASUDA SEIEI (JP)

PCT/JP2015/070384

January 19, 2017

July 16, 2015

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IHI CORP (JP)

F04C15/00; F04C11/00

JP2003328958A	2003-11-19
JP2008050979A	2008-03-06
JP2009536992A	2009-10-22

See also references of EP 3324048A4

MIYOSHI, Hidekazu et al. (JP)

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