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Reciprocating piston lubrication pump

A piston lubricating and reciprocating technology, applied in the field of lubricating pumps, can solve problems such as accelerated wear, reduced pump service life, and fracture of pump parts, achieving high service life, less breakage and damage, and effective design effects

Pending Publication Date: 2022-06-24
AB SKF +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High levels of metal particles and / or low concentrations of oil in lubricants can accelerate wear and cause localized fracture of pump components (i.e. pump pistons and pump cylinders) and significantly reduce the service life of the pump

Method used

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  • Reciprocating piston lubrication pump
  • Reciprocating piston lubrication pump
  • Reciprocating piston lubrication pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 An axial partial section is shown of the reciprocating piston lubrication pump 10 according to the invention, which includes the part 12 with the opening 14 ( figure 2 ). The opening 14 has a cylindrical portion 16 . The piston 18 of the reciprocating piston lubrication pump 10 is located partially within the region 24 of the part forming the cylindrical portion 16 . Piston 18 has a radially outer surface 20 constructed of coating 22 . When the radially outer surface is located in the cylindrical portion, the clearance between the radially outer surface of the piston and the component is between 2 and 10 microns. The surface hardness of the coating at the radially outer surface is 4 to 8 times higher than the surface hardness of the area of ​​the part forming the cylindrical portion.

[0029] The part includes holes 30 ( figure 1 ) and another hole (not shown) through which lubricant (not shown) is drawn into a portion of the opening between the piston an...

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PUM

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Abstract

A reciprocating piston lubrication pump (10) with a component (12) is proposed, comprising an opening (14) having at least one cylindrical portion (16), and having at least one piston (18) comprising a radially outer surface (20) at least partially constructed by a coating (22), where when the radially outer surface is located in the cylindrical portion, the coating (22) is coated on the radially outer surface (20). The gap between the radially outer surface of the piston and the component is between 1 [mu] m and 20 [mu] m, wherein the surface hardness of the coating at the radially outer surface is 2 to 10 times higher than the surface hardness of the region (24) of the component forming the cylindrical portion.

Description

technical field [0001] The present application relates to lubrication pumps, and more particularly to reciprocating piston lubrication pumps. Background technique [0002] The lubrication pump plays an important role in the lubrication system. There are many different types of lubricating pumps, such as reciprocating piston pumps, rotary pumps (screw, gear, rotary vane and lobe pumps), vortex (mud pumps), etc., for different application purposes. The reciprocating piston pump is one of the most commonly used pumps because of its compact size and precise lubricant delivery. Lubrication pumps can be used to deliver complex lubricants to provide a combination of anti-friction, anti-noise and even sealing effects in applications such as railways, tunnel drilling, mining and more. However, in order to achieve the desired function, special lubricants consist of a large number of metal particles, amounting to up to 30% by weight, of which iron, aluminium, copper and magnesium are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/14F04B53/00
CPCF04B53/14F04B53/00F04B15/02F04B53/008F04B19/22F04B53/18
Inventor X.周T.米勒A.阿卜杜勒H.鲁尔C.马塔M.费德I.内德尔库T.艾希霍恩G.温斯卡特
Owner AB SKF
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