Method and apparatus for purging air from automatic lubrication systems

An automatic lubrication and gas removal technology, which is applied in the direction of engine lubrication, mechanical equipment, lubricating parts, etc., can solve problems such as the impact of machine productivity
CN102187142AInactive Publication Date: 2011-09-14IFIELD ENG
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
IFIELD ENG
Publication Date
2011-09-14
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

An automatic lubrication system where grease is dispensed to injectors from a pump having a grease piston (42) reciprocated by a connecting rod from an oil piston (43) driven by alternating hydraulic pressure, is provided with air purge valves (41) associated with each injector. The air purge valves detect abnormal operation of the piston movement due to air in the grease by way of indicators (45) and (46) communicating with chambers in the pump, and open the air purge valve to dump air laden grease into a recovery reservoir (48). A sensor in the air purge valve warns the operator of purge valve operation, alerting the operator to a possible system malfunction.
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Description

technical field

[0001] The present invention relates to a method and apparatus for purging air from an automatic lubrication system by providing a valve to purge air or gas from the lubricant before it is delivered to the bearings of the machine, and has been designed especially for (although not For use only) in heavy machinery used in mining or earth moving. Background technique

[0002] Automatic lubrication systems are used on many types of machinery, from large stationary plant equipment to smaller mobile buildings and mining equipment. Typically, it replaces procedures requiring manual operations with grease guns and the like.

[0003] In this specification, the lubricant is referred to as lubricating oil, which is the most common lubricating substance, but this term should be understood to include other lubricants, such as oils and synthetic fluids or gels.

[0004] Known centralized automatic lubrication systems provide useful functionality, but have some problems....

Claims

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