CN209115997U - It is a kind of to can solve high speed flow rotor-type oil pump more than needed - Google Patents

It is a kind of to can solve high speed flow rotor-type oil pump more than needed Download PDF

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Publication number
CN209115997U
CN209115997U CN201821986523.8U CN201821986523U CN209115997U CN 209115997 U CN209115997 U CN 209115997U CN 201821986523 U CN201821986523 U CN 201821986523U CN 209115997 U CN209115997 U CN 209115997U
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China
Prior art keywords
rotor
oil
center
feed tank
axis hole
Prior art date
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Active
Application number
CN201821986523.8U
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Chinese (zh)
Inventor
许仲秋
苏慧
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Hunan Oil Pump Co Ltd
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Hunan Oil Pump Co Ltd
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Application filed by Hunan Oil Pump Co Ltd filed Critical Hunan Oil Pump Co Ltd
Priority to CN201821986523.8U priority Critical patent/CN209115997U/en
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Abstract

The utility model provides a kind of rotor-type oil pump that can solve high speed flow and have more than needed, including the pump housing, pump cover, internal rotor, outer rotor, armature spindle, the pump housing is equipped with the rotor chamber for accommodating internal rotor and outer rotor, the bottom of the rotor chamber is equipped with semi-moon shaped oil-feed tank and out oil groove, and the axis hole between oil-feed tank and out oil groove is set, the center of the relatively described rotor chamber in the center of the axis hole is set for the eccentric, the center of the axis hole and the center of the rotor chamber are connected to form a line of eccentricity with straight line, the line of eccentricity runs through oil-feed tank and out oil groove simultaneously.In above-mentioned technical proposal, since the both ends of the line of eccentricity at the center at the center and rotor chamber of connecting shaft hole extend through oil-feed tank and out oil groove, to just change the inswept effective area of rotor, effective oil inlet area is set to become smaller, and it is equivalent to oil-feed tank and oil groove is ganged up out, in this way in high speed will oil inlet it is insufficient, thus achieve the purpose that reduce volumetric efficiency.

Description

It is a kind of to can solve high speed flow rotor-type oil pump more than needed
Technical field
The utility model relates to a kind of engine lubrication system component, in particular to a kind of rotor-type oil pump.
Background technique
Rotor-type oil pump is made of the pump housing, internal rotor, outer rotor, armature spindle and pump cover etc..The pump housing is equipped with rotor chamber, Internal rotor and outer rotor are located in rotor chamber, and internal rotor is fixedly mounted on armature spindle, are directly or indirectly driven by crankshaft toothed wheel, The eccentricity at internal rotor center and outer rotor center is e, and internal rotor drives outer rotor to rotate in the same direction together.In rotor chamber Bottom be equipped with semi-moon shaped oil-feed tank and oil groove out, the line at internal rotor center and outer rotor center is line of eccentricity, the bias Entire rotor chamber is divided into oil inlet side and oil extraction side by line.In the prior art, semi-moon shaped oil-feed tank is entirely located in rotor chamber Oil inlet side, it is semi-moon shaped go out oil groove be entirely located in the oil extraction side of rotor chamber.
Since commercial vehicle is different in flow demand of the different phase to lubricating oil pump, in low speed, volumetric efficiency demand is high, high Volumetric efficiency demand is low when fast, and can all have flow more than needed at a high speed according to the lubricating oil pump of low speed volumetric efficiency design.To understand Certainly this problem, the prior art are all to limit output flow by increasing pressure limiting valve, will lead to manufacturing cost height, function in this way Rate consumption is big.
Utility model content
The technical problem to be solved by the present invention is to provide one kind can solve high speed flow richness without increasing pressure limiting valve just Remaining rotor-type oil pump.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of high speed flow that can solve is more than needed Rotor-type oil pump, including the pump housing, pump cover, internal rotor, outer rotor, armature spindle, the pump housing are equipped with for accommodating internal rotor With the rotor chamber of outer rotor, the bottom of the rotor chamber is equipped with semi-moon shaped oil-feed tank and out oil groove, and is arranged in oil-feed tank The center of axis hole between oil groove out, the relatively described rotor chamber in the center of the axis hole is set for the eccentric, by the axis hole Center and the center of the rotor chamber are connected to form a line of eccentricity with straight line, which runs through oil-feed tank and fuel-displaced simultaneously Slot.
In above-mentioned technical proposal, since internal rotor is mounted on armature spindle, armature spindle is mounted in the axis hole of the pump housing, because This, the center of axis hole is equal to the center of internal rotor, and the center of rotor chamber is equal to the center of outer rotor.Due to connecting shaft hole The both ends of the line of eccentricity at center and the center of rotor chamber extend through oil-feed tank and out oil groove, so that it is inswept just to change rotor Effective area makes effective oil inlet area become smaller, and is equivalent to oil-feed tank and oil groove is ganged up out, in this way will in high speed Oil inlet is insufficient, to achieve the purpose that reduce volumetric efficiency, does not need additionally to increase pressure limiting valve to limit output flow.
Detailed description of the invention
Fig. 1 is the fuel pump structure schematic diagram in the utility model embodiment;
Fig. 2 is the pump body structure schematic diagram in the utility model embodiment;
Appended drawing reference are as follows:
1 --- the pump housing 2 --- pump cover 3 --- armature spindle
4 --- internal rotor 5 --- outer rotor 11 --- rotor chambers
12 --- axis hole 13 --- oil suction chamber 14 --- oil outlet chambers.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further Explanation, the content that embodiment refers to not is restriction to the utility model.
In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and It cannot be understood as indicating or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.In the utility model Description in, the meaning of " plurality " is two or more, unless otherwise specifically defined.In retouching for the utility model In stating, it should be noted that unless otherwise specified and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, example Such as, mechanical connection or electrical connection be can be, the connection being also possible to inside two elements can be directly connected, and can also lead to It crosses intermediary to be indirectly connected, for the ordinary skill in the art, can understand the term as the case may be Concrete meaning.
As shown in Figure 1, 2, a kind of to can solve high speed flow rotor-type oil pump more than needed, including the pump housing 1, pump cover 2, rotor Axis 3, internal rotor 4, outer rotor 5, the pump housing are equipped with the rotor chamber 11 for accommodating internal rotor 4 and outer rotor 5, the rotor The bottom of chamber 11 is equipped with semi-moon shaped oil-feed tank 13 and oil groove 14, and the axis being arranged between oil-feed tank 13 and out oil groove 14 out The center in hole 12, the relatively described rotor chamber 11 in the center of the axis hole 12 is set for the eccentric, by the center of the axis hole 12 and institute The center for stating rotor chamber 11 is connected to form a line of eccentricity with straight line, which runs through oil-feed tank 13 and out oil groove 14 simultaneously.
In above-mentioned technical proposal, since internal rotor is mounted on armature spindle, armature spindle is mounted in the axis hole of the pump housing, because This, the center of axis hole is equal to the center of internal rotor, and the center of rotor chamber is equal to the center of outer rotor.Due to connecting shaft hole The both ends of the line of eccentricity at center and the center of rotor chamber extend through oil-feed tank and out oil groove, so that it is inswept just to change rotor Effective area makes effective oil inlet area become smaller, and is equivalent to oil-feed tank and oil groove is ganged up out, in this way will in high speed Oil inlet is insufficient, to achieve the purpose that reduce volumetric efficiency, does not need additionally to increase pressure limiting valve to limit output flow.
Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides Formula realizes that any obvious replacement is in the protection model of the utility model under the premise of not departing from the technical program design Within enclosing.
In order to allow those of ordinary skill in the art more easily understand the improvement of the utility model compared with the existing technology it Place, some attached drawings of the utility model and description have been simplified, and for the sake of clarity, present specification is omitted one A little other elements, the element that those of ordinary skill in the art should be aware that these are omitted also may make up the interior of the utility model Hold.

Claims (1)

1. a kind of can solve high speed flow rotor-type oil pump more than needed, including the pump housing, pump cover, armature spindle, internal rotor, outer turn Son, the pump housing are equipped with the rotor chamber for accommodating internal rotor and outer rotor, and the bottom of the rotor chamber is equipped with semi-moon shaped Oil-feed tank and out oil groove, and the axis hole being arranged between oil-feed tank and out oil groove, it is characterised in that: the center phase of the axis hole The center of the rotor chamber is set for the eccentric, the center at the center of the axis hole and the rotor chamber is connected to form with straight line One line of eccentricity, the line of eccentricity run through oil-feed tank and out oil groove simultaneously.
CN201821986523.8U 2018-11-29 2018-11-29 It is a kind of to can solve high speed flow rotor-type oil pump more than needed Active CN209115997U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821986523.8U CN209115997U (en) 2018-11-29 2018-11-29 It is a kind of to can solve high speed flow rotor-type oil pump more than needed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821986523.8U CN209115997U (en) 2018-11-29 2018-11-29 It is a kind of to can solve high speed flow rotor-type oil pump more than needed

Publications (1)

Publication Number Publication Date
CN209115997U true CN209115997U (en) 2019-07-16

Family

ID=67206947

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821986523.8U Active CN209115997U (en) 2018-11-29 2018-11-29 It is a kind of to can solve high speed flow rotor-type oil pump more than needed

Country Status (1)

Country Link
CN (1) CN209115997U (en)

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