Delivery valve holder on high-pressure oil pump
A high-pressure oil pump and oil outlet valve technology, which is applied to the components of the pumping device for elastic fluid, pump components, variable displacement pump components, etc. Problems such as damage to the tight seat of the oil outlet valve, to prevent fatigue cracks, improve sealing, and prevent oil leakage
Inactive Publication Date: 2018-09-21
YANGZHOU RUNYING MACHINERY
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Problems solved by technology
[0002] The pressure seat of the oil outlet valve on the high-pressure oil pump of the traditional diesel engine has been frequently fractured during the service process. In view of this phenomenon, it has been found that the fracture generally occurs in the middle of the seat body. After analyzing the tear marks on the fracture, it is found that the source of the crack is It usually appears at the round port of the installation cavity. Due to the obvious machining traces here, fatigue cracks are easy to initiate, which will lead to fatigue fracture of the tight seat of the oil outlet valve and reduce the service life of the product. Moreover, the pressure of the existing oil outlet valve Most of the tight seats adopt the traditional manufacturing method, and the oil outlet through a single oil outlet hole will also cause damage to the tight seat of the oil outlet valve under the condition of long-term high pressure. Therefore, we propose a kind of oil outlet valve on the high pressure oil pump tight seat
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] see Figure 1-2 , the present invention provides a technical solution: an oil outlet valve tight seat on a high-pressure oil pump, including an oil outlet valve tight seat main body 1, and the oil outlet valve tight seat main body 1 includes a valve body nozzle 101, a valve body connector 102 and a valve body Body mounting head 103 and valve body connecting head 102 are respectively connected with valve body spray head 101 and valve body mounting head 1...
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The invention discloses a delivery valve holder on a high-pressure oil pump, and belongs to the technical field of delivery valve holders. A valve connector, a valve sprayer and a valve mounting headare matched and connected in a threaded manner, the valve connector comprises an outer cylinder and an inner cylinder which are matched and connected in a threaded manner, an oil outlet hole channel is formed in the valve sprayer, a conical ejection hole is communicated at the top of the oil outlet hole channel, a first conical hole is formed in the top of the inner cylinder, grooves are formed inthe left side and the right side of the second conical hole, connecting springs are arranged on the inner sides of the grooves, and pressure relief hole channels are formed in the tops of the grooves. According to the delivery valve holder, the grooves are formed in the second conical hole, pistons are connected in the grooves through connecting springs, oil liquid can extrude the piston at highpressure and is conveyed towards the ejection hole from the pressure relief hole channels, oil outlet pressure of a single oil outlet hole channel is reduced, the service life of the delivery valve holder is prolonged, and cost is low.
Description
technical field [0001] The invention relates to the technical field of oil outlet valve tight seat, in particular to an oil outlet valve tight seat on a high-pressure oil pump. Background technique [0002] The pressure seat of the oil outlet valve on the high-pressure oil pump of the traditional diesel engine has been frequently fractured during the service process. In view of this phenomenon, it has been found that the fracture generally occurs in the middle of the seat body. After analyzing the tear marks on the fracture, it is found that the source of the crack is It usually appears at the round port of the installation cavity. Due to the obvious machining traces here, fatigue cracks are easy to initiate, which will lead to fatigue fracture of the tight seat of the oil outlet valve and reduce the service life of the product. Moreover, the pressure of the existing oil outlet valve Most of the tight seats adopt the traditional manufacturing method, and the oil outlet throu...
Claims
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IPC IPC(8): F04B53/10
CPCF04B53/10
Inventor 杨旭干
Owner YANGZHOU RUNYING MACHINERY