Lubrication – Lubricators – Force feed
Patent
1989-09-06
1991-05-14
Lazarus, Ira S.
Lubrication
Lubricators
Force feed
184 626, F16N 734
Patent
active
050148214
ABSTRACT:
A lubricating system for air feed pipe lines laid in a factory having its essential feature in that it was made possible to inject lubricating oil into air feed pipe lines consisting of two, high-pressure and low-pressure, systems with one set of lubricating oil injection device by making use of ON-OFF operations of a high-pressure air source. The subject lubricating system comprises a switching valve (8) provided in a bypass air pipe line (7b) connecting a high-pressure side air feed pipe line (1) with an inlet (6a) of a lubricating oil injection device (6) and switched to a communicating position (8.sub.1) when a high-pressure air source (3) is ON but to a blocking position (8.sub.2) when it is OFF, and another switching valve (11) provided in first and second lubricating oil injected air pipe lines (9a, 9b) connected between an outlet (6b) of the lubricating oil injection device (6) and the high-pressure and low-pressure air feed pipe lines (1, 2) and adapted to allow air injected with lubricating oil to flow into the high-pressure side air feed pipe line (1) when the high-pressure air source (3) is ON but into the low pressure side air feed pipe line (2) when it is OFF.
REFERENCES:
patent: 4169520 (1979-10-01), Lewkowicz et al.
Cariaso Alan B.
Kabushiki Kaisha Komatsu Seisakusho
Lazarus Ira S.
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