Lubricant oil pump unit

A lubricating oil pump, lubricating oil technology, applied in the direction of lubricating pump, lubricating pump pressure lubrication, pressure lubricant, etc., can solve the problems of increasing the wear of moving parts, weakening the lubricating power, high viscosity, and achieving simplified structure, light motion quality, Precisely control the effect of lubrication
CN1462331AInactive Publication Date: 2003-12-17WILLY VOGEL AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WILLY VOGEL AG
Publication Date
2003-12-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a lubricant pump unit (P) for lubricating the cylinders in precise time with the cycle in internal combustion engines (M) such as diesel engines. Said pump unit contains a working piston (22), which drives several metering pistons (25) that are allocated to lubricating point connections and can be driven back and forth in feed and return cycles by means of a working stroke that can be adjusted to meter the supply of lubricating oil, a magnetically actuated control valve (V) being provided in a control oil circuit of the working piston. The working piston (22) is subjected in turn to a hydraulic pressure both in the feed cycle and the return cycle by the control oil circuit.
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Description

technical field

[0001] The invention relates to a lubricating oil pump unit according to the preamble of claim 1 . Background technique

[0002] The working piston of the lubricating oil pump unit disclosed in the patent document CH 673 506A is hydraulically driven for its delivery stroke. The return stroke of the working piston is realized by means of a return spring. The metering piston is pushed in the delivery direction by the aforementioned working piston, while the return spring is used for its suction stroke. Lubricating oil is sucked into the quantitative cylinder through the oil inlet valve from an annular chamber, and the above-mentioned annular chamber communicates with an oil tank arranged at a high place. To monitor the function of the pump, the position of the working piston is detected. In addition, there are optical / electrical function monitoring devices working in tandem at least on the ports of some lubrication points. The dosing of lubricating oil is d...

Claims

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