CN101435394B - Device for preventing loss of lubricant in LPI pump - Google Patents

Device for preventing loss of lubricant in LPI pump Download PDF

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Publication number
CN101435394B
CN101435394B CN2007103071668A CN200710307166A CN101435394B CN 101435394 B CN101435394 B CN 101435394B CN 2007103071668 A CN2007103071668 A CN 2007103071668A CN 200710307166 A CN200710307166 A CN 200710307166A CN 101435394 B CN101435394 B CN 101435394B
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CN
China
Prior art keywords
pipeline
casing
lubricant
partition wall
lpi
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Application number
CN2007103071668A
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Chinese (zh)
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CN101435394A (en
Inventor
朴贞洙
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Hyundai Motor Co
Kia Corp
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Hyundai Motor Co
Kia Motors Corp
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Publication date
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Publication of CN101435394A publication Critical patent/CN101435394A/en
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Publication of CN101435394B publication Critical patent/CN101435394B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/14—Feeding by means of driven pumps the pumps being combined with other apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
    • F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Fuel Cell (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

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

Prevent the device of loss of lubricant in the LPI pump
Cross reference with related application
The application number that the application requires to submit to Korea S Department of Intellectual Property on November 14th, 2007 is the preference and the rights and interests of the korean patent application of 10-2007-0116114, and the full content of above-mentioned application is herein incorporated with for referencial use.
Technical field
The present invention relates to a kind of device that is used for preventing LPI pump loss of lubricant.More particularly, the present invention relates to a kind of device that is used for preventing LPI pump loss of lubricant, it comprises the casing that is provided with partition wall, and when LPG evaporates, prevents the loss of oiling agent in the LPI pump.
Background technique
Recently, the LPG vehicle uses fuel pump at the fuel tank that is used for depositing LPI (liquefied petroleum gas injection) system fuel oil, and LPG (LPG) direct injection gets into cylinder in this LPI system.
The LPI vehicle can accurately be controlled the injection of fuel oil, thereby but strengthens the output of motor and improve the startability in its winter.
Yet, become complicated in the scheme of LPI system intermediate fuel oil pump owing to having rotor shaft, a plurality of bearings or the like, and the viscosity of LPG fuel oil is low, therefore must in fuel pump, make with lubricator.
LPG evaporates easily at ambient temperature.Therefore, the pressure of depositing in the fuel tank of LPG must be greater than barometric pressure.In addition, because the fuel oil that is input in the motor must be in a liquid state,, the LPI system make it be higher than about 5 crust of the pressure that balances each other so must pressurizeing to fuel oil.
Because the LPI pump is through the to-and-fro motion pumping fuel of plunger and dividing plate, so the pressure difference before and after the plunger is big more, the amount of pumping reduces more and the persistency variation is many more.Therefore in order to make pressure difference before and after the plunger minimize and to form a hole, thereby make that the pressure in the pump can remain the pressure that balances each other in fuel tank.
Yet, when vehicle for example when go in the slope, LPG can flow in the pump through this hole, LPG can with mix lubricant, and when with the LPG evaporation of mix lubricant the time, oiling agent possibly flow out.
When oiling agent flows out, the operation of LPI pump and durability possible deviation.
The above information that in this part of background technique, is disclosed only is used for strengthening the understanding to background technique of the present invention, therefore, possibly comprise such information: this information does not constitute the existing technology by national those of ordinary skills knew.
Summary of the invention
The present invention is devoted to provide a kind of device that is used for preventing LPI pump loss of lubricant, and it comprises casing that is provided with partition wall and the loss that when LPG evaporates, prevents oiling agent in the LPI pump.
A kind of being used for according to an exemplary embodiment of the present invention prevents that the device of LPI pump loss of lubricant from can comprise: comprise first surface and second surface casing, be arranged on first pipeline that first surface is used to be communicated with LPI pump and casing, be arranged on second surface and be used to be communicated with second pipeline of exhaust port and casing and be arranged in the casing in order to form the partition wall of first chamber that is connected with first pipeline and second chamber that is connected with second pipeline.
Partition wall can extend from first surface.
Second surface can be set to be higher than first surface.
Second pipeline can extend in casing, and the end of second pipeline can be lower than the end of partition wall.
A kind of being used for according to an exemplary embodiment of the present invention prevents that the device of LPI pump loss of lubricant from can comprise: with the exhaust port that curve form forms and the fuel oil that prevents to be in a liquid state flows into; The casing that comprises first surface and second surface; Be arranged on first pipeline that first surface is used to be communicated with LPI pump and casing; Being arranged on second surface is used to be communicated with second pipeline of exhaust port and casing and is arranged on casing interior in order to form the partition wall of first chamber that is connected with first pipeline and second chamber that is connected with second pipeline.
Partition wall can extend from first surface, and second surface can be set to be higher than first surface.
Second pipeline can extend in casing, and the end of second pipeline can be lower than the end of partition wall.
As previously mentioned, a kind ofly be used for according to an exemplary embodiment of the present invention preventing that the device of LPI pump loss of lubricant from can prevent that the oiling agent in the LPI pump from evaporating with LPG through simple proposal.
Description of drawings
Fig. 1 is the figure that shows the principle of the device that is used for preventing LPI pump loss of lubricant according to an exemplary embodiment of the present invention.
Fig. 2 is the partial sectional view at A place among Fig. 1.
Fig. 3 is the partial sectional view at B place among Fig. 1.
The explanation of the reference character of expression primary component in the accompanying drawing
100: casing 110: first surface
120: 130: the first pipelines of second surface
150: the first chambers of 140: the second pipelines
Chamber 170 in 160: the second: partition wall
200: exhaust port 300:LPI pump
Embodiment
Below with reference to accompanying drawing embodiments of the invention are described in more detail.
Fig. 1 is the figure that shows the principle of the device that is used for preventing LPI pump loss of lubricant according to an exemplary embodiment of the present invention.
Fig. 2 and Fig. 3 are respectively the partial sectional views at B place among partial sectional view and the Fig. 1 at A place among Fig. 1.
Casing 100, exhaust port 200 and LPI pump 300 are presented among Fig. 1 to Fig. 3.
Casing 100 comprises first surface 110 and second surface 120.
First pipeline 130 is arranged on first surface 110, is used to be communicated with LPI pump 300 and casing 100.
Second pipeline 140 is arranged on second surface 120, is used to be communicated with exhaust port 200 and casing 100.
Partition wall 170 is arranged in the casing 100, in order to form first chamber 150 that is connected with first pipeline 130 and second chamber 160 that is connected with second pipeline 140.
Partition wall 170 extends from first surface 110.
Second surface 120 is set to be higher than first surface 110.
Second pipeline 140 extends in casing 100, and the end of second pipeline 140 is lower than the end of partition wall 170.
Therefore, can prevent to flow in the LPI pump 300 through first chamber 150 through the liquid LPG that second pipeline 140 receives.
Inflow and the outflow of arrow indication LPG shown in Fig. 2.
The outside of exhaust port 200 is positioned at fuel tank, and LPG is in liquid state and steam state in fuel tank, and exhaust port 200 flow in the LPI pump 300 with the LPG that prevents to be in a liquid state with curve form formation.
Yet when vehicle went along the slope etc., the LPG that is in a liquid state can flow through exhaust port 200.
As shown in Figure 3, the LPG that is in a liquid state can be accumulated in second chamber 160 by partition wall 150.
Therefore, LPG and mix lubricant can be prevented, thereby the evaporation of oiling agent can be in the LPG evaporation, prevented.
That is to say because exhaust port 200 and partition wall 150, can prevent the LPG that is in a liquid state be fed directly in the LPI pump 300 and in LPI pump 300 with mix lubricant.
Though, will be recognized that the present invention only is limited to the embodiment that is disclosed through combining currently to think that practical exemplary embodiment described the present invention; On the contrary, the invention is intended to cover the different modifications and the equivalent form of value within the spirit that is included in appended claim and the category.

Claims (4)

1. device that is used for preventing the petrolift loss of lubricant of liquefied petroleum gas injection comprises:
The casing that comprises first surface and second surface;
Be arranged on first pipeline that first surface is used to be communicated with petrolift and casing;
Be arranged on second pipeline that second surface is used to be communicated with exhaust port and casing; And
Be arranged on the interior partition wall of casing in order to formation first chamber that is connected with first pipeline and second chamber that is connected with second pipeline,
Wherein partition wall extends from first surface,
Wherein second surface is set to be higher than first surface.
2. the device of loss of lubricant in the petrolift that prevents liquefied petroleum gas injection as claimed in claim 1, wherein second pipeline extends in casing, and the end of second pipeline is lower than the end of partition wall.
3. device that is used for preventing the petrolift loss of lubricant of liquefied petroleum gas injection comprises:
With the exhaust port that curve form forms and the fuel oil that prevents to be in a liquid state flows into;
The casing that comprises first surface and second surface;
Be arranged on first pipeline that first surface is used to be communicated with petrolift and casing;
Be arranged on second pipeline that second surface is used to be communicated with exhaust port and casing; And
Be arranged on the interior partition wall of casing in order to formation first chamber that is connected with first pipeline and second chamber that is connected with second pipeline,
Wherein partition wall extends from first surface, and second surface is set to be higher than first surface.
4. the device of loss of lubricant in the petrolift that prevents liquefied petroleum gas injection as claimed in claim 3, wherein second pipeline extends in casing, and the end of second pipeline is lower than the end of partition wall.
CN2007103071668A 2007-11-14 2007-12-10 Device for preventing loss of lubricant in LPI pump Active CN101435394B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2007-0116114 2007-11-14
KR1020070116114 2007-11-14
KR1020070116114A KR100974590B1 (en) 2007-11-14 2007-11-14 Apparatus for preventing loss of lublication oil in lpi pump

Publications (2)

Publication Number Publication Date
CN101435394A CN101435394A (en) 2009-05-20
CN101435394B true CN101435394B (en) 2012-07-25

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CN (1) CN101435394B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101509782B1 (en) * 2009-08-27 2015-04-08 현대자동차주식회사 Oil Vent Structure of Fuel Pump for Vehicle
KR102664094B1 (en) 2018-09-27 2024-05-07 현대자동차주식회사 Fuel pump for liquefied petroleum injection system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1924325A (en) * 2005-08-30 2007-03-07 现代自动车株式会社 LPI engine system
CN101037978A (en) * 2006-03-16 2007-09-19 现代自动车株式会社 Liquefied petroleum gas injection (lpi) system, and method for preventing gas leakage and poor starting performance using the same
CN101054925A (en) * 2006-04-12 2007-10-17 现代自动车株式会社 Fuel supply system of LPI engine and method for forcibly returning fuel thereby

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3831844B2 (en) * 2002-06-11 2006-10-11 富士電機デバイステクノロジー株式会社 Semiconductor device
KR100922426B1 (en) * 2003-03-19 2009-10-16 한라공조주식회사 Air-conditioning system for vehicle
KR200395201Y1 (en) 2005-06-24 2005-09-07 웅진코웨이주식회사 Piping Coupler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1924325A (en) * 2005-08-30 2007-03-07 现代自动车株式会社 LPI engine system
CN101037978A (en) * 2006-03-16 2007-09-19 现代自动车株式会社 Liquefied petroleum gas injection (lpi) system, and method for preventing gas leakage and poor starting performance using the same
CN101054925A (en) * 2006-04-12 2007-10-17 现代自动车株式会社 Fuel supply system of LPI engine and method for forcibly returning fuel thereby

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2005-180252A 2005.07.07

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Publication number Publication date
CN101435394A (en) 2009-05-20
KR100974590B1 (en) 2010-08-06
KR20090049811A (en) 2009-05-19

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