Low pressure automatic lubrication system
First Claim
1. A low pressure automatic lubrication system of the type which feeds oil to at least one operating body at a low pressure for lubrication, comprising:
- a pump;
nozzle having at its one end a circular end face and including an orifice, one end of said orifice being open to said circular end face, oil pumped by said pump means being fed through said orifice to said operating body; and
control means positioned between said pump and said nozzle means for controlling the flow of oil from said pump to said nozzle means;
said orifice having a diameter d1 and a length l1, and said circular end face of said nozzle means having an outer diameter of d2, wherein d1 = 0.3 mm to 0.8 mm, d2 ≦
2d1, and l1 ≦
6d1, and said nozzle means has a passage connected to the other end of said orifice, said passage having a diameter D which satisfies the relationship of D >
2d1.
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Accused Products
Abstract
A low pressure lubrication or oiling system including: a pump; a nozzle having a circular end face and a discharge orifice having one end of the orifice being open to the circular end face with oil pumped by the pump being supplied through the orifice to a plurality of operating members which require lubrication, and a flow control valve positioned between the pump and the nozzle. The diameter of the orifice ranges from 0.3 mm to 0.8 mm with the outer diameter of the circular end face being at least two times as large as the diameter of the orifice, and the length of the orifice being at least six times as large as the diameter of the orifice so that a small amount of oil may be dropped in the form of a continuous line at a feeding rate of 3 to 20 cc / min.
32 Citations
14 Claims
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1. A low pressure automatic lubrication system of the type which feeds oil to at least one operating body at a low pressure for lubrication, comprising:
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a pump; nozzle having at its one end a circular end face and including an orifice, one end of said orifice being open to said circular end face, oil pumped by said pump means being fed through said orifice to said operating body; and control means positioned between said pump and said nozzle means for controlling the flow of oil from said pump to said nozzle means;
said orifice having a diameter d1 and a length l1, and said circular end face of said nozzle means having an outer diameter of d2, wherein d1 = 0.3 mm to 0.8 mm, d2 ≦
2d1, and l1 ≦
6d1, and said nozzle means has a passage connected to the other end of said orifice, said passage having a diameter D which satisfies the relationship of D >
2d1.
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2. A low pressure automatic lubrication system of the type which feeds oil to at least one operating body at a low pressure for lubrication, comprising:
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a pump; nozzle means having at its one end a circular end face and including an orifice, one end of said orifice being open to said circular end face, oil pumped by said pump being fed through said orifice to said operating body; and control means positioned between said pump and said nozzle means for controlling the flow of oil from said pump to said nozzle means; said orifice having a diameter d1 and a length l1, and said circular end face of said nozzle means having an outer diameter of d2, wherein d1 = 0.3 mm to 0.8 mm, d2 ≦
2d1, and l1 ≦
6d1, said nozzle means has a passage connected to the other end of said orifice, said passage having a diameter D which satifies the relationship of D >
2d1, and a hood member surrounding said circular end face to which the one end of said orifice is open, to prevent the dust from clinging to the one end of said orifice.
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3. A low pressure automatic lubricating system comprising:
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pump means for pumping a lubricating oil; at least one nozzle having an orifice, a circular end surface to which one end of said orifice opens, and a passage connected to the other end of said orifice; and value means positioned between said pump means and said nozzle for controlling the flow of the lubricating oil fed from said pump means to said nozzle; the lubricating oil being delivered under pressure by said pump means through said valve means to said nozzle to be discharged therefrom in the form of a continuous stream toward at least one point to be lubricated; wherein said orifice has a diameter of 0.3 to 0.8 mm, said circular end surface has an outer diameter of most twice the diameter of said orifice;
said orifice has a length at most of six times the diameter of said orifice, and said passage has a diameter of more than twice the diameter of said orifice. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification