Scavenging pump

a technology of scavenging pump and oil pump, which is applied in the direction of mechanical equipment, machines/engines, pressure lubrication, etc., can solve the problems of large air gap between the gears for drawing oil, reduced sealing performance, and difficulty in drawing sufficient oil for such a pump to achieve the effect of efficient oil circulation
US20220307393A1Inactive Publication Date: 2022-09-29YAMADA SEISAKUSHO KK
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
YAMADA SEISAKUSHO KK
Publication Date
2022-09-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A scavenging pump is utilized to draw oils from a catch tank that collects the oils supplied to components to an oil pan that reserves therein the oils. The scavenging pump includes gears to draw the oils, and a housing that stores therein the gears. An oil receiving portion capable of receiving the oils injected from the exterior is formed in an outer circumferential surface of the housing, and an oil introducing hole that introduces the oils injected to the oil receiving portion into the interior is opened at a position continuous from a lower part of the oil receiving portion and facing the gears.
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Description

FIELD OF THE INVENTION

[0001] The present disclosure relates to a scavenging pump that draws oils from a catch tank which collects the oils supplied to components to an oil pan which reserves therein the oils.BACKGROUND

[0002] Some vehicles are provided with components, such as a turbocharger. Such components are allowed to operate and are cooled by lubrication oils that circulate within a vehicle. Oils that pass through a component are collected by a catch tank, and are returned to an oil pan from the catch tank. At this time, when the catch tank is located at a lower site than that of the catch tank, oils are drawn from the catch tank to the oil pan using a scavenging pump. JP 2019-78190 A discloses a conventional technology related to such a scavenging pump.

[0003] JP 2019-78190 A describes the features of a scavenging pump by a comparison with a feed pump for circulating oils. One of such features is that, although a feed pump carries substantially oils only, a scavenging pump carries...

Claims

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