Injection lubricator with plural outlets
AssigneeWatts FluidAir Div. of Robertshaw Controls Company
InventorsJohn Nelson, Robert B. Tosi
Life of this patent
Estimating the term…
Abstract
An injection lubricator including a lubricant pump having a pumping piston actuated by a pneumatic pulse to deliver a pulse of lubricant to a lubricant pump outlet, a lubricant distributor having a lubricant distribution inlet in communication with the lubricant pump outlet, a plurality of lubricant distribution outlets, and switchable flow paths within the distributor to cause one lubricant distribution outlet to be connected to the lubricant distribution inlet at one time, and a pneumatically-actuated piston that advances the lubricant distributor to switch to a different lubrication outlet with the application of each pneumatic pulse.
Claims10
An injection lubricator comprising
- a lubricant pump having a pumping piston actuated by a pneumatic pulse to deliver a pulse of lubricant from a lubricant source to a lubricant pump outlet, said pump also having a pneumatic pulse outlet,
- a lubricant distributor having a lubricant distribution inlet in communication with said lubricant pump outlet, a plurality of lubricant distribution outlets, and switchable flow paths within the distributor to cause one said lubricant distribution outlet to be connected to said lubricant distribution inlet at one time, and
- a pneumatically-actuated piston that receives pneumatic pulses from said pneumatic pulse outlet and advances said lubricant distributor to switch to a different lubrication outlet with the application of each pneumatic pulse,
- wherein said lubricant distributor includes a distribution member having a plurality of openings connected via said flow paths to said distribution outlets, and wherein said lubricant distributor includes a movable member that has a single movable outlet that is moved to different positions at which the single movable outlet sequentially mates with a plurality of openings in said distribution member,
- further comprising means defining a lubricant chamber in communication with said lubricant distribution inlet, and further comprising a check valve providing discharge of a lubricant from said chamber to said lubricant source when pressure in said chamber exceeds a predetermined value.
An injection lubricator comprising
- a lubricant pump having a pumping piston actuated by a pneumatic pulse to deliver a pulse of lubricant to a lubricant pump outlet, said pump also having a pneumatic pulse outlet,
- a lubricant distributor having a lubricant distribution inlet in communication with said lubricant pump outlet, a plurality of lubricant distribution outlets, and switchable flow paths within the distributor to cause one said lubricant distribution outlet to be connected to said lubricant distribution inlet at one time, and
- a pneumatically-actuated piston that receives pneumatic pulses from said pneumatic pulse outlet and advances said lubricant distributor to switch to a different lubrication outlet with the application of each pneumatic pulse,
- wherein said lubricant distributor includes a distribution member having a plurality of openings connected via said flow paths to said distribution outlets, and wherein said lubricant distributor includes a movable member that has a single movable outlet that is moved to different positions at which the single movable outlet sequentially mates with a plurality of openings in said distribution member,
- wherein said lubricant distributor and pneumatically-actuated piston are provided as part of a lubricant distribution module, and wherein said lubricant pump is a mating injector module,
- said lubricant pulse outlet and said pneumatic pulse outlet of said injector module having predetermined, fixed relative positions, said lubricant distributor module having a pneumatic pulse inlet, and said lubricant distribution inlet and said pneumatic pulse inlet of said lubricant distributor module having corresponding predetermined fixed relative positions so as to mate with said lubricant pulse outlet and pneumatic pulse outlet.
Dependencies are inferred from the claim text.