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Compact structure of gear pump

一种齿轮泵、外齿轮的技术，应用在泵/压缩机的布置、泵、泵元件等方向，能够解决扭矩增大、增大阻力等问题

Inactive Publication Date: 2016-01-20
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in an increased pressure acting on the contact between the outer peripheral edge of the protrusion 114c of the outer member 114 and the outer rotor 19a, thus increasing the resistance to the sliding movement of the outer rotor 19a, which will result in a Increase in torque required for rotor 19a and inner rotor 19b

Method used

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  • Compact structure of gear pump
  • Compact structure of gear pump
  • Compact structure of gear pump

Examples

Experimental program
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Effect test

no. 2 approach

[0130] A gear pump device of a second embodiment which is different from that of the first embodiment in the structure of the first contact portion 114i and the second contact portion 114j will be described below. Other arrangements are the same, and thus a detailed description thereof will be omitted here.

[0131] In the first embodiment, the first contact portion 114i and the second contact portion 114j are located apart from the protruding portion 114c, while the outer member 114 of the second embodiment is as Figure 9 Shown in has a first contact portion 114i and a second contact portion 114j shaped to be continuous or connected to the protrusion 114c.

[0132] The exterior member 114 is resin molded. The formation of the first contact portion 114i and the second contact portion 114j positioned away from the protrusion 114c is achieved by injecting a resin material into a small recess formed in the mold, while the second contact portion connected to the protrusion 114c ...

no. 3 approach

[0136] A gear pump apparatus of a third embodiment will be described below, which differs from that of the first embodiment in terms of the structure of the first hermetically sealed portion 114d and the second hermetically sealed portion 114e of the exterior member 114. The gear pump equipment is different. Other arrangements are the same, and thus a detailed description thereof will be omitted here. The first hermetically sealed portion 114d and the second hermetically sealed portion 114e may also be used with the gear pump apparatus of the second embodiment.

[0137] In each of the first and second embodiments, the first and second hermetic seals 114d, 114e of the outer member 114 are shaped to occupy or cover the cavity 19c during pumping operations. and also minimize the area of ​​sliding contact between the outer member 114 and the assembly of the first rotor 19a and the second rotor 19b. Specifically, each (or at least one) of the first hermetic seal portion 114d and ...

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PUM

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Abstract

A gear pump apparatus includes a gear pump and a sealing mechanism which includes an annular rubber member, an outer member, and an inner member. One of the outer member and a casing of the gear pump apparatus has a contact member located outside a portion of the outer member which contacts the gear pump in a radial direction of the gear pump. The contact member is placed to create a physical contact between the outer member and the casing to absorb a part of force by which the outer member is pressed against the gear pump. This results in a decrease in pressure acting on an area of contact between the outer member and the gear pump, which leads to a drop in resistance to sliding between the gear pump and the outer member, thus decreasing a loss of torque required for the pumping operation of the gear pump.

Description

technical field [0001] The present disclosure generally relates to gear pump devices, such as trochoidal pumps, which are designed to pump fluid by displacement using the meshing of gears and which may be employed by automotive braking systems. Background technique [0002] Japanese Patent First Publication No. 2014-25352 discloses the gear pump equipment of the above type, such as Figure 18 As shown, the gear pump apparatus includes a gear pump 19 equipped with an outer rotor 19a and an inner rotor 19b and a sealing mechanism 111 . The sealing mechanism 111 serves to hermetically seal between the high-pressure region and the low-pressure region near one of the ends of the gear pump 19 . [0003] The sealing mechanism 111 includes a hollow frame-shaped inner member 112 , an annular rubber member 113 , and a hollow frame-shaped outer member 114 . The annular rubber member 113 is disposed between the outer peripheral wall of the inner member 112 and the inner peripheral wall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/10F04C15/00
CPCB60T7/042B60T8/4031B60T13/146B60T13/662B60T13/686B60T17/02F04C2/102F04C15/0019F04C15/0034F04C15/0057
Inventor 羽柴隆志袴田尚树永沼贵宽川端伦明
Owner ADVICS CO LTD