The invention discloses a fuel pump and an oil supply system. The fuel pump comprises a pump body which has a plunger cavity, an oil storage cavity, a main oil suction mouth, an auxiliary oil intake port and an oil outlet. The plunger cavity is adapted to communicate with the main oil tank through the main oil suction port, and the oil storage cavity is adapted to connect with the auxiliary oil tank through the auxiliary oil suction port. The plunger cavity and the oil storage cavity are connected with the oil outlet, and the plunger is movably located in the plunger cavity along the axial direction, and the plunger has a plunger oil hole, and the plunger oil hole can be selectively opened and closed; the drive part and the driving part are connected to the plunger through the drive part. Lian. The fuel pump of the invention can supply oil through the combination of plunger and jet technology, which can simplify the structure of the pump body, reduce the manufacturing and assembly cost of the fuel pump, and the plunger type fuel pump needs no filter screen, the fuel pump has high energy efficiency, the fuel pump has high heat dissipation efficiency in the working process, and the oil supply performance is strong.
【技术实现步骤摘要】
燃油泵和供油系统
本专利技术属于发动机供油
,具体而言,涉及一种燃油泵和具有该燃油泵的供油系统。
技术介绍
车辆的供油能耗影响整车的排放性能,相关技术中,燃油泵通过采用电机作为动力源进行吸油,燃油泵通常为滚柱泵式、齿轮泵式、涡轮泵式等,并通过调节电机的输入电压实现按需供油,以电机为动力的燃油泵在吸油口处都会安装滤网以达到防止杂质进入,滤网会影响泵油效率,且出于成本考虑,通常使用有刷电机,有刷电机在工作时频繁的摩擦会使换向器产生热量和磨损,甚至出现火花,对于易燃的燃油来说存在很大的安全隐患。
技术实现思路
有鉴于此,本专利技术旨在提出一种能效高的燃油泵。为达到上述目的,本专利技术的技术方案是这样实现的:一种燃油泵,包括:泵体,所述泵体具有柱塞腔、储油腔、主吸油口、副吸油口和出油口,所述柱塞腔适于通过所述主吸油口与主油箱连通,所述储油腔适于通过所述副吸油口与副油箱连通,所述柱塞腔和所述储油腔均与所述出油口连通;柱塞,所述柱塞沿轴向可移动地设在所述柱塞腔内,且所述柱塞具有柱塞通油孔,所述柱塞通油孔可选择性地开闭;传动件和驱动件,所述驱动件通过所述传动件与所述柱塞相连。进一步地,所述柱塞腔与所述出油口之间设有文丘里管。进一步地,所述文丘里管与所述出油口之间设有缩口管。进一步地,所述泵体还具有射流腔,所述储油腔通过所述射流腔与所述副吸油口以及所述出油口连通。进一步地,所述泵体包括前泵体和后泵体,所述柱塞腔、所述文丘里管和所述缩口管沿轴向依次设在所述前泵体上,且所述柱塞腔的一端敞开以形成所述主吸油口,所述出油口设在所述后泵体上,且所述后泵体与所述前泵体的远离所述主吸 ...
【技术保护点】
一种燃油泵(100),其特征在于,包括:泵体(10),所述泵体(10)具有柱塞腔(10b)、储油腔(10g)、主吸油口(10a)、副吸油口(10e)和出油口(10h),所述柱塞腔(10b)适于通过所述主吸油口(10a)与主油箱(210)连通,所述储油腔(10g)适于通过所述副吸油口(10e)与副油箱(220)连通,所述柱塞腔(10b)和所述储油腔(10g)均与所述出油口(10h)连通;柱塞(20),所述柱塞(20)沿轴向可移动地设在所述柱塞腔(10b)内,且所述柱塞(20)具有柱塞通油孔(22a),所述柱塞通油孔(22a)可选择性地开闭;传动件和驱动件(40),所述驱动件(40)通过所述传动件与所述柱塞(20)相连。
【技术特征摘要】
1.一种燃油泵(100),其特征在于,包括:泵体(10),所述泵体(10)具有柱塞腔(10b)、储油腔(10g)、主吸油口(10a)、副吸油口(10e)和出油口(10h),所述柱塞腔(10b)适于通过所述主吸油口(10a)与主油箱(210)连通,所述储油腔(10g)适于通过所述副吸油口(10e)与副油箱(220)连通,所述柱塞腔(10b)和所述储油腔(10g)均与所述出油口(10h)连通;柱塞(20),所述柱塞(20)沿轴向可移动地设在所述柱塞腔(10b)内,且所述柱塞(20)具有柱塞通油孔(22a),所述柱塞通油孔(22a)可选择性地开闭;传动件和驱动件(40),所述驱动件(40)通过所述传动件与所述柱塞(20)相连。2.根据权利要求1所述的燃油泵(100),其特征在于,所述柱塞腔(10b)与所述出油口(10h)之间设有文丘里管(10c)。3.根据权利要求2所述的燃油泵(100),其特征在于,所述文丘里管(10c)与所述出油口(10h)之间设有缩口管(10d)。4.根据权利要求3所述的燃油泵(100),其特征在于,所述泵体(10)还具有射流腔(10f),所述储油腔(10g)通过所述射流腔(10f)与所述副吸油口(10e)以及所述出油口(10h)连通。5.根据权利要求4所述的燃油泵(100),其特征在于,所述泵体(10)包括前泵体(11)和后泵体(12),所述柱塞腔(10b)、所述文丘里管(10c)和所述缩口管(10d)沿轴向依次设在所述前泵体(11)上,所述柱塞腔(10b)的一端敞开以形成所述主吸油口(10a),所述出油口(10h)设在所述后泵体(12)上,且所述后泵体(12)与所述前泵体(11)的远离所述主吸油口(10a)的一端相连以限定出环形的所述储油腔(10g)和所述射流腔(10f)。6.根据权利要求1-5中任一项所述的燃油泵(100),其特征在于,所述驱动件(40)包括:定子(...
【专利技术属性】
技术研发人员:徐肇振,武晟锋,谢志远,张新明,何彦斌,李长江,刘立朝,史阔天,喻兴超,岳永亮,贺明贤,孙浩,
申请(专利权)人:长城汽车股份有限公司,
类型:发明
国别省市:河北,13
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