KR100598531B1 - A rotary type oilpump - Google Patents

A rotary type oilpump Download PDF

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Publication number
KR100598531B1
KR100598531B1 KR1020040102112A KR20040102112A KR100598531B1 KR 100598531 B1 KR100598531 B1 KR 100598531B1 KR 1020040102112 A KR1020040102112 A KR 1020040102112A KR 20040102112 A KR20040102112 A KR 20040102112A KR 100598531 B1 KR100598531 B1 KR 100598531B1
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KR
South Korea
Prior art keywords
oil
pump
cover
rotor
suction
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KR1020040102112A
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Korean (ko)
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KR20060063054A (en
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최승우
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현대자동차주식회사
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Priority to KR1020040102112A priority Critical patent/KR100598531B1/en
Publication of KR20060063054A publication Critical patent/KR20060063054A/en
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Publication of KR100598531B1 publication Critical patent/KR100598531B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/025—Lubrication; Lubricant separation using a lubricant pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

본 발명은 로터리형 오일펌프에 관한 것으로, 엔진 성능향상에 따라 그 폭이 넓게 형성된 로터리로의 오일공급이 원활하게 이루어져 흡입과정의 오일충진 부족으로 인한 펌핑압력저하 등과 같은 펌핑효율의 저하를 방지할 수 있도록 한 것이다.The present invention relates to a rotary oil pump, which can smoothly supply oil to a rotary oil formed in accordance with an improvement in engine performance to prevent a decrease in pumping efficiency such as a decrease in pumping pressure due to lack of oil filling during a suction process. I would have to.

즉, 본 발명은 엔진의 윤활을 위하여 오일팬의 오일을 흡입하여 엔진의 각 윤활부위로 오일을 펌핑하는 로터리형 오일펌프에 있어서 펌프바디의 흡입측에 펌프커버의 커버 흡입관로와 연통되어 로터실 저면으로 연결되는 바디 흡입관로를 형성한 것이다.That is, the present invention is a rotary oil pump that sucks oil from the oil pan and pumps oil to each lubrication part of the engine for lubrication of the engine, and communicates with the cover suction pipe path of the pump cover on the suction side of the pump body. It forms a body suction pipe connected to the bottom.

따라서, 본 발명은 펌프바디에 바디 흡입관로를 형성하므로 인하여 펌프커버에 형성된 커버 흡입관로를 통한 오일의 흡입과 더불어 펌프바디를 통하여 로터실 저면으로 오일의 흡이이 이루어져 펌프의 흡입과정에 있어 오일의 흡입이 충분하게 이루어져 그 충진효율을 향상됨과 더불어 로터리폭의 증가로 인한 펌핑 압력저하가 방지되는 것이다.Therefore, the present invention forms a body suction pipe in the pump body, so that the oil is sucked to the bottom of the rotor chamber through the pump body along with the suction of oil through the cover suction pipe formed in the pump cover. The suction is sufficient to improve the filling efficiency and to prevent the pumping pressure drop due to the increase in the rotary width.

오일펌프Oil pump

Description

로터리형 오일펌프{A rotary type oilpump}Rotary oil pump {A rotary type oilpump}

도 1 은 종래의 로터링형 오일펌프를 보인 평 단면도.Figure 1 is a cross-sectional view showing a conventional rotoring oil pump.

도 2 는 본 발명의 로터리형 오일펌프를 보인 분해 사시도.Figure 2 is an exploded perspective view showing a rotary oil pump of the present invention.

도 3 은 본 발명의 로터리형 오일펌프의 평 단면도.3 is a cross-sectional view of the rotary oil pump of the present invention.

※ 도면의 커버요부분에 대한 부호의 설명※ Explanation of code about cover required part of drawing

11 : 바디 흡입관로 12 : 바디 배출관로11: body suction line 12: body discharge line

20 : 펌프바디 21 : 로터실20: pump body 21: rotor chamber

30 : 펌프커버30: pump cover

41 : 인너로터 42 : 아웃터로터41: inner rotor 42: outer rotor

51 : 커버 흡입관로 52 : 커버 배출관로51: cover suction line 52: cover discharge line

본 발명은 로터리형 오일펌프에 관한 것으로, 더욱 상세하게는 엔진의 윤활을 위하여 오일팬의 오일을 흡입하여 엔진의 각 윤활부위로 오일을 펌핑하는 로터리형 오일펌프에 있어서 펌프바디의 흡입측에 펌프커버의 커버 흡입관로와 연통되어 로터실 저면으로 연결되는 바디 흡입관로를 형성하여서 오일의 펌핑을 위한 흡 입과정에 있어 오일의 흡입이 신속하고 충분하게 이루어져 펌핑효율이 향상될 수 있도록 함을 목적으로 한 것이다.The present invention relates to a rotary oil pump, and more particularly, in a rotary oil pump that sucks oil from an oil pan and pumps oil to each lubrication part of the engine for lubrication of the engine. In order to improve the pumping efficiency, the suction of the oil is quick and sufficient in the suction process for pumping oil by forming a body suction pipe which is connected to the cover suction pipe of the cover and connected to the bottom of the rotor chamber. It is.

본 발명의 다른 실시예로는 펌프바디의 배출측에 로터실의 저면에서 펌프커버의 커버 배출관로로 연통되는 바디 배출관로를 형성하여서 형성하여서 오일의 펌핑을 위한 가압과정에 있어 오일이 신속하게 가압배출될 수 있도록 하여 펌핑효율을 향상시킬 수 있도록 함을 목적으로 한 것이다.In another embodiment of the present invention is formed by forming a body discharge pipe to communicate with the cover discharge pipe of the pump cover at the bottom of the rotor chamber on the discharge side of the pump body to pressurize the oil quickly in the pressurization process for the pumping of oil It is intended to improve the pumping efficiency by allowing the discharge.

일반적으로, 엔진에 사용되는 오일펌프는 오일팬에 저장된 오일을 흡입하여서 밸브축과 크랭크축 및 피스톤등과 같이 윤활이 요구되는 윤활부위로 오일을 펌핑 공급하는 것이다.In general, the oil pump used in the engine is to suck the oil stored in the oil pan and to pump the oil to the lubrication areas that require lubrication such as the valve shaft, the crankshaft and the piston.

이상과 같이 윤활부위로 오일을 펌핑하는 오일펌프는 그 형식에 따라 편심되게 수납된 회전체의 외측에서 탄성 출몰되는 판이 구비된 베인형 오일펌프와, 치합되는 두개의 기어로 이루어진 기어형 오일펌프 및 네개의 돌기를 돌출형성한 인너로터와, 상기 인너로터가 내접 수납되며 돌기와 대응되는 다섯개의 홈을 형성한 아웃터로터로 이루어진 로터리형 오일펌프 등이 있다.As described above, the oil pump for pumping oil to the lubrication part includes a vane type oil pump having a plate which is elastically retracted from the outer side of the rotating body housed eccentrically according to its type, and a gear type oil pump having two gears engaged with each other. A rotary oil pump including an inner rotor having four protrusions formed therein, and an outer rotor in which the inner rotor is internally received and formed five grooves corresponding to the protrusions are provided.

한편, 자동차의 엔진에서는 상기한 오일펌프중 크기가 작고 효율이 우수한 로터리형 오일펌프가 주로 사용되고 있다.On the other hand, in the engine of the automobile, the rotary oil pump of small size and excellent efficiency among the oil pumps is mainly used.

상기한 바와 같이 자동차의 엔진에서 주로사용되는 로터리형 오일펌프는 인너로터(41)와 아웃터로터(42)로 이루어진 로터가 수납되는 로터실(21)을 요입 형성한 펌프바디(20)와, 상기 펌프바디(20)에 덮여 씌워지며 아웃터로터(42)의 홈으로 오일이 흡입되는 커버 흡입관로(51)와 상기 아웃터로터(42)의 홈에서 오일이 배출 되는 커버 배출관로(52)를 형성하는 펌프커버(30)로 구성된 것으로서, 로터가 회전되는 과정에 발생하는 아웃터로터(42) 홈에서 발생하는 흡입력에 의하여 펌프커버(30)에 형성한 커버 흡입관로(51)를 통하여 오일팬의 오일이 흡입되게 되고, 흡입된 오일은 인너로터(41)에 의하여 가압되어서 펌프커버(30)에 형성한 커버 배출관로(52)를 통하여 오일이 가압되어 각 윤활부위로 공급되는 것이다.As described above, a rotary oil pump mainly used in an engine of a vehicle includes a pump body 20 having a recess formed in a rotor chamber 21 in which a rotor composed of an inner rotor 41 and an outer rotor 42 is accommodated; Covered to cover the pump body 20 to form a cover suction pipe path 51 in which oil is sucked into the grooves of the outer rotor 42 and a cover discharge pipe path 52 through which oil is discharged from the grooves of the outer rotor 42. It is composed of a pump cover 30, the oil of the oil pan through the cover suction pipe path 51 formed in the pump cover 30 by the suction force generated in the groove of the outer rotor 42 generated in the process of rotating the rotor The suctioned oil is pressurized by the inner rotor 41 and the oil is pressurized through the cover discharge pipe 52 formed in the pump cover 30 to be supplied to each lubrication part.

한편, 엔진의 성능 개량을 위하여 높이를 낮게 형성함에 따라 로터리형 오일펌프도 그 외경은 작아지고 폭은 크게 제작되어지고 있다.On the other hand, as the height is lowered to improve the performance of the engine, the rotary oil pump is also manufactured with a smaller outer diameter and a larger width.

그러나, 상기한 바와 같이 엔진의 성능향상으로 인하여 로터의 폭을 크게 형성하게 되면 펌프커버(30)에 형성된 커버 흡입관로(51)를 통하여 흡입되는 오일이 흡입과정에 있어 아웃터로터(42)의 홈의 로터실(21) 저면 까지 충분한 유입이 이루어지지 않아 펌핑에 의하여 공급되는 오일의 양이 설계치보다 적어지고 오일의 펌핑압도 낮아져 펌핑효율이 저하되는 문제점이 있었다.However, when the width of the rotor is largely formed due to the improvement of the performance of the engine as described above, the oil sucked through the cover suction pipe 51 formed in the pump cover 30 is the groove of the outer rotor 42 in the suction process. There is a problem in that the pumping efficiency is lowered because the amount of oil supplied by the pumping is less than the design value and the pumping pressure of the oil is also lowered because the inflow is not made enough to the bottom of the rotor chamber 21.

이에, 본 발명은 상술한 바와 같이 엔진 성능향상에 따라 그 폭이 넓게 형성된 로터리로의 오일공급이 원활하게 이루어져 흡입과정의 오일충진 부족으로 인한 펌핑압력저하 등과 같은 펌핑효율의 저하를 방지할 수 있도록 한 것이다.Thus, the present invention is to smooth the oil supply to the rotary formed wide as the engine performance as described above to prevent the deterioration of the pumping efficiency, such as lowering the pumping pressure due to lack of oil filling in the suction process It is.

즉, 본 발명은 엔진의 윤활을 위하여 오일팬의 오일을 흡입하여 엔진의 각 윤활부위로 오일을 펌핑하는 로터리형 오일펌프에 있어서 펌프바디의 흡입측에 펌프커버의 커버 흡입관로와 연통되어 로터실 저면으로 연결되는 바디 흡입관로를 형성한 것이다. That is, the present invention is a rotary oil pump that sucks oil from the oil pan and pumps oil to each lubrication part of the engine for lubrication of the engine, and communicates with the cover suction pipe path of the pump cover on the suction side of the pump body. It forms a body suction pipe connected to the bottom.                         

따라서, 본 발명은 펌프바디에 바디 흡입관로를 형성하므로 인하여 펌프커버에 형성된 커버 흡입관로를 통한 오일의 흡입과 더불어 펌프바디를 통하여 로터실 저면으로 오일의 흡이이 이루어져 펌프의 흡입과정에 있어 오일의 흡입이 충분하게 이루어져 그 충진효율을 향상됨과 더불어 로터리폭의 증가로 인한 펌핑 압력저하가 방지되는 것이다.Therefore, the present invention forms a body suction pipe in the pump body, so that the oil is sucked to the bottom of the rotor chamber through the pump body along with the suction of oil through the cover suction pipe formed in the pump cover. The suction is sufficient to improve the filling efficiency and to prevent the pumping pressure drop due to the increase in the rotary width.

이하, 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.

본 발명은 인너로터리의 홈의 바디측으로 지접적인 오일의 흡입이 이루어지게 하여서 펌핑효율이 향상되도록 한 것으로, 인너로터(41)와 아웃터로터(42)로 이루어진 로터가 수납되는 로터실(21)을 요입 형성한 펌프바디(20)와, 상기 펌프바디(20)에 덮여 씌워지며 아웃터로터(42)의 홈으로 오일이 흡입되는 커버 흡입관로(51)와 상기 아웃터로터(42)의 홈에서 오일이 배출되는 커버 배출관로(52)를 형성하는 펌프커버(30)로 구성된 로터리형 오일펌프에 있어서, 상기 펌프바디(20)의 흡입측에 커버 흡입관로(51)에서 로터실(21)의 저면으로 연통되어 아웃터로터(42) 홈의 로터실(21) 저면측 측면으로 연결되는 바디 흡입관로(11)를 형성한 것이다.The present invention is to improve the pumping efficiency by making the suction of the oil to the body side of the groove of the inner rotary to improve the rotor, the rotor chamber 21 in which the rotor consisting of the inner rotor 41 and the outer rotor 42 is accommodated The pump body 20 and the pump body 20 formed in the concave, the oil is covered in the cover suction pipe passage 51 and the groove of the outer rotor 42 covered with the pump body 20 and the oil is sucked into the groove of the outer rotor 42. In the rotary oil pump composed of the pump cover 30 to form a cover discharge pipe 52 to be discharged, the cover suction pipe passage 51 from the cover suction pipe passage 51 to the bottom surface of the rotor chamber 21 on the suction side of the pump body 20. The body suction pipe passage 11 is connected to the lower side of the rotor chamber 21 of the outer rotor 42 groove.

한편, 본 발명의 다른 실시예로는 인너로터(41)에 의하여 가압되는 아웃터로터(42)의 홈의 오일 중 로터실 저면측 오일이 원활하게 배출될 수 있게 로터실(21)의 배출측 저면에서 펌프바디(20)를 통하여 커버 배출관로(52)로 연결되는 바디 배출관로(12)를 형성한 것이다.Meanwhile, in another embodiment of the present invention, the bottom surface of the discharge side of the rotor chamber 21 may be smoothly discharged from the oil in the rotor chamber bottom side of the oil in the groove of the outer rotor 42 pressurized by the inner rotor 41. In the body through the pump body 20 to form a body discharge pipe path 12 is connected to the cover discharge pipe path (52).

이하, 본 발명의 작동과정에 대하여 설명하면 다음과 같다.Hereinafter, the operation of the present invention will be described.

상기한 바와 같이 인너로터(41)와 아웃터로터(42)로 이루어진 로터가 수납되는 로터실(21)을 요입 형성한 펌프바디(20)와, 상기 펌프바디(20)에 덮여 씌워지며 아웃터로터(42)의 홈으로 오일이 흡입되는 커버 흡입관로(51)와 상기 아웃터로터(42)의 홈에서 오일이 배출되는 커버 배출관로(52)를 형성하는 펌프커버(30)로 구성된 로터리형 오일펌프에 있어서, 상기 펌프바디(20)의 흡입측에 커버 흡입관로(51)에서 로터실(21)의 저면으로 연통되어 아웃터로터(42) 홈의 로터실(21) 저면측 측면으로 연결되는 바디 흡입관로(11)를 형성한 본 발명을 적용하여 실시하게 되면 엔진의 성능 향상을 위하여 엔진의 높이를 낮게 형성함에 따라 상대적으로 그 폭이 넓게 형성되는 로터리형 오일펌프가 흡입작용을 하게 되면 펌프커버(30)에 형성한 커버 흡입관로(51)를 통하여 오일이 흡입되게 된다.As described above, the pump body 20 in which the rotor chamber 21 in which the rotor composed of the inner rotor 41 and the outer rotor 42 is accommodated is formed, and the pump body 20 is covered and covered with the outer rotor ( In the rotary oil pump comprising a cover suction pipe 51 through which oil is sucked into the groove of the groove 42 and a pump cover 30 forming a cover discharge pipe 52 through which oil is discharged from the groove of the outer rotor 42. The body suction pipe passage is connected to the bottom surface of the rotor chamber 21 in the cover suction tube passage 51 on the suction side of the pump body 20 and is connected to the bottom side of the rotor chamber 21 in the groove of the outer rotor 42. When the present invention is formed by applying the present invention (11) and the lower the height of the engine to improve the performance of the engine as the rotary oil pump is formed in a relatively wide width of the pump cover (30) Oil through the cover suction pipe line 51 formed in the It is to be inhaled.

이때, 상기 커버 흡입관로(51)를 통하여 흡입된 오일중 일부가 펌프바디(20)를 통하여 로터실(21) 저면으로 연결되는 바디 흡입관로(11)를 통하여 로터실(21) 저면측의 아웃터로터(42) 홈측으로 공급되어 흡입과정에 있어 홈으로의 오일 충진이 신속하고 충분하게 이루어지고, 이로 인하여 펌핑압력도 상승되게 되는 것이다.At this time, some of the oil sucked through the cover suction pipe passage 51 is connected to the bottom of the rotor chamber 21 through the pump body 20 through the body suction pipe passage 11 through the outer rotor rotor 21 at the bottom side of the rotor chamber 21. (42) It is supplied to the groove side, so that oil filling into the groove can be made quickly and sufficiently during the suction process, thereby increasing the pumping pressure.

한편, 본 발명의 다른 실시예와 같이 로터실(21)의 배출측 저면에서 펌프바디(20)를 통하여 커버 배출관로(52)로 연결되는 바디 배출관로(12)를 형성하여 실시하게 되면, 로터의 흡입과정 완료 후 인너로터(41)에 의하여 아웃터로터(42) 홈에 충진된 오일이 가압되어 펌프커버(30)에 형성한 커버 배출관로(52) 배출되게 되는 것이다.On the other hand, as in another embodiment of the present invention when the body discharge pipe line 12 is connected to the cover discharge pipe path 52 through the pump body 20 on the discharge side bottom surface of the rotor chamber 21, the rotor, After the suction process is completed, the oil filled in the grooves of the outer rotor 42 by the inner rotor 41 is pressurized to discharge the cover discharge pipe 52 formed in the pump cover 30.

이때, 상기 로터실(21) 저면측의 홈의 오일은 펌프바디(20)를 통하여 커버 배출관로(52)로 연결되는 바디 배출관로(12)를 통하여 배출이 이루어지므로 오일의 배출이 신속하게 이루어지며 배출저항이 최소화되게 되는 것이다.At this time, the oil in the groove on the bottom side of the rotor chamber 21 is discharged through the body discharge pipe passage 12 connected to the cover discharge pipe passage 52 through the pump body 20, so that the oil is discharged quickly. The discharge resistance is minimized.

따라서, 본 발명은 펌프바디에 바디 흡입관로를 형성하므로 인하여 펌프커버에 형성된 커버 흡입관로를 통한 오일의 흡입과 더불어 펌프바디를 통하여 로터실 저면으로 오일의 흡이이 이루어져 펌프의 흡입과정에 있어 오일의 흡입이 충분하게 이루어져 그 충진효율을 향상됨과 더불어 로터리폭의 증가로 인한 펌핑 압력저하가 방지되는 것이다.Therefore, the present invention forms a body suction pipe in the pump body, so that the oil is sucked to the bottom of the rotor chamber through the pump body along with the suction of oil through the cover suction pipe formed in the pump cover. The suction is sufficient to improve the filling efficiency and to prevent the pumping pressure drop due to the increase in the rotary width.

또한, 로터실 저면에서 펌프바디를 통하여 펌프커버의 커버 배출관로로 연결되는 바디 배출관로를 형성하므로서 배출과정에 있어 로터실 저면측 아웃터로터 홈의 오일이 신속하게 배출이 이루어져 배출저항이 최소화되어서 펌프효율이 상승되는 매우 유용한 것이다.
In addition, by forming a body discharge pipe connected to the cover discharge pipe of the pump cover through the pump body at the bottom of the rotor chamber, the oil in the outer rotor groove at the bottom of the rotor chamber is discharged quickly in the discharge process to minimize discharge resistance. The efficiency is very useful.

Claims (2)

인너로터(41)와 아웃터로터(42)로 이루어진 로터가 수납되는 로터실(21)을 요입 형성한 펌프바디(20)와, 상기 펌프바디(20)에 덮여 씌워지며 아웃터로터(42)의 홈으로 오일이 흡입되는 커버 흡입관로(51)와 상기 아웃터로터(42)의 홈에서 오일이 배출되는 커버 배출관로(52)를 형성하는 펌프커버(30)로 구성된 로터리형 오일펌프에 있어서;A pump body 20 in which a rotor chamber 21 in which a rotor composed of an inner rotor 41 and an outer rotor 42 is accommodated is formed, and the pump body 20 is covered and covered with a groove of the outer rotor 42. In the rotary oil pump consisting of a cover suction pipe passage (51) through which the oil is sucked and a pump cover (30) forming a cover discharge pipe passage (52) through which the oil is discharged from the groove of the outer rotor (42); 상기 펌프바디(20)의 흡입측에 커버 흡입관로(51)에서 로터실(21)의 저면으로 연통되어 아웃터로터(42) 홈의 로터실(21) 저면측 측면으로 연결되는 바디 흡입관로(11)를 형성한 것을 특징으로 하는 로터리형 오일펌프.The body suction pipe line 11 which is connected to the bottom surface of the rotor chamber 21 from the cover suction pipe passage 51 on the suction side of the pump body 20 and is connected to the bottom side of the rotor chamber 21 of the groove of the outer rotor 42. Rotary oil pump, characterized in that). 제 1 항에 있어서;The method of claim 1; 상기 인너로터(41)에 의하여 가압되는 아웃터로터(42)의 홈의 오일 중 로터실 저면측 오일이 원활하게 배출될 수 있게 로터실(21)의 배출측 저면에서 펌프바디(20)를 통하여 커버 배출관로(52)로 연결되는 바디 배출관로(12)를 형성한 것을 특징으로 하는 로터리형 오일펌프.Covered through the pump body 20 at the bottom side of the discharge side of the rotor chamber 21 so that the oil in the rotor chamber bottom side of the grooves of the outer rotor 42 pressurized by the inner rotor 41 can be smoothly discharged. Rotary oil pump, characterized in that the body is formed with a discharge pipe passage (12) connected to the discharge pipe (52).
KR1020040102112A 2004-12-07 2004-12-07 A rotary type oilpump KR100598531B1 (en)

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KR100750355B1 (en) * 2006-10-25 2007-08-17 명화공업주식회사 Oil pump
KR101641814B1 (en) * 2012-04-12 2016-07-21 에머슨 클라이미트 테크놀로지스 (쑤저우) 코., 엘티디. Rotor pump and rotary machinery comprising same

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JPH05312176A (en) * 1992-05-12 1993-11-22 Taisei Tekkosho:Kk Oil pump
JPH05312177A (en) * 1992-05-12 1993-11-22 Taisei Tekkosho:Kk Oil pump
JPH08338217A (en) * 1995-06-08 1996-12-24 Toyota Motor Corp Oil relief structure for oil pump
KR0139053Y1 (en) * 1995-11-29 1999-05-15 김태구 Structure of engine oil pump of a car

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05312176A (en) * 1992-05-12 1993-11-22 Taisei Tekkosho:Kk Oil pump
JPH05312177A (en) * 1992-05-12 1993-11-22 Taisei Tekkosho:Kk Oil pump
JPH08338217A (en) * 1995-06-08 1996-12-24 Toyota Motor Corp Oil relief structure for oil pump
KR0139053Y1 (en) * 1995-11-29 1999-05-15 김태구 Structure of engine oil pump of a car

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