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Device for preventing loss of lubricant in LPI pump

A lubricant and fuel pump technology, used in oil supply devices, charging systems, combustion engines, etc., to solve problems such as lubricant outflow, LPI pump operation and durability deterioration

Active Publication Date: 2012-07-25
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when, for example, the vehicle is driving down a slope, LPG can flow into the pump through the hole, the LPG can mix with the lubricant, and when the LPG mixed with the lubricant evaporates, the lubricant can flow out
[0010] Operation and durability of LPI pumps may deteriorate when lubricant flows out

Method used

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  • Device for preventing loss of lubricant in LPI pump
  • Device for preventing loss of lubricant in LPI pump
  • Device for preventing loss of lubricant in LPI pump

Examples

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Embodiment Construction

[0030] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0031] figure 1 is a diagram showing the principle of an apparatus for preventing lubricant loss in an LPI pump according to an exemplary embodiment of the present invention.

[0032] figure 2 and image 3 respectively figure 1 Partial cross-sectional view at A and figure 1 Partial cross-sectional view at B.

[0033] The tank 100, vent 200 and LPI pump 300 are shown in Figure 1 to Figure 3 middle.

[0034] The box body 100 includes a first surface 110 and a second surface 120 .

[0035] The first pipeline 130 is disposed on the first surface 110 for communicating the LPI pump 300 and the tank 100 .

[0036] The second pipeline 140 is disposed on the second surface 120 for communicating with the exhaust hole 200 and the box body 100 .

[0037] The partition wall 170 is disposed in the box body 100 to form the first chamber 150 connected to...

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Abstract

The invention discloses a device applied to preventing lubricant losses in an LPI pump, which comprises a case comprising a first surface and a second surface, a first pipeline arranged on the first surface and applied to communicating the LPI pump and the case, a second pipeline arranged on the second surface and applied to communicating air vents and the case, a first cavity arranged in the case and applied to forming a connection with the first pipeline, and a dividing wall of a second cavity connected with the second pipeline.

Description

[0001] Cross references to related applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2007-0116114 filed with the Korean Intellectual Property Office on November 14, 2007, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a device for preventing lubricant loss in LPI pumps. More particularly, the present invention relates to a device for preventing loss of lubricant in an LPI pump, which includes a case provided with a partition wall, and prevents loss of lubricant in the LPI pump when LPG evaporates. Background technique [0004] Recently, LPG vehicles use a fuel pump in a fuel tank for storing fuel of an LPI (Liquefied Petroleum Gas Injection) system in which LPG (Liquefied Petroleum Gas) is directly injected into cylinders. [0005] LPI vehicles are able to precisely control fuel injection, thereby enhancing engine output and improving its wint...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M37/04
CPCY02T10/32Y02T10/30F02M21/0212F02M37/14
Inventor 朴贞洙
Owner HYUNDAI MOTOR CO LTD
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