# US 4,392,551 A · Dosing device for feeding lubricant to friction couples > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,392,551 A - Document ID: US4392551A - Status: Granted - Kind: A - Application number: 06/286,685 - Filed: 1981-07-24 - Granted: 1983-07-12 - Earliest claimed: 1981-07-24 - Inventors: Viktor P. Buryakov; Gennady M. Ivanov; Mikhail I. Kislik; Pavel M. Kurgansky; Mark B. Shmotkin; Eduard V. Eikhenvald - Web page: https://patentgrep.com/patent/US4392551A ## CPC - F16N 25/04: with rotary distributing member (combined with oil pump F16N13/22) - Y10T 137/86541: Plug - F16N: LUBRICATING - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The dosing device includes a plurality of sections successively connected in the direction of the flow of the lubricant namely a valveless head section with a central supply duct, distributing sections and a valveless end section. The housing of each distributing section has a chamber accommodating a reciprocating distributing slide valve. The chamber is closed with closures limiting the reciprocation of the slide valve and defining two metering-out end chambers. Each chamber communicates with the reduced-diameter area of the distributing valve of the preceding section. The housing of each distributing section has central duct perpendicular to the axis of the cylindrical chamber, and outlet ducts. The inlets of the outlet ducts communicate with the cylindrical chamber, while the outlets of these ducts to feed the lubricant to the friction couples. In at least one distributing section the distributing slide valve is provided with means for rotating this valve about its axis through a predetermined angle and for retaining it in the rotated position. The shoulders of the slide valve, facing the metering-out end chambers, each have a single distributing passage. The inlet of this passage communicates with the relieved area of the valve, while its outlet opens onto the external surface of the shoulder. The section housing has other outlet ducts whose inlets are spaced about the perimeter of the wall of the cylindrical chamber, with the geometric axes of these inlets dividing the circumference of the chamber into predetermined angles. ## Claims ### Claim 1 A dosing device for feeding a lubricant to friction couples, comprising: a valveless head section; a plurality of distributing sections; a valveless end section, said sections being successively interconnected in the direction of the lubricant flow; a central supply duct provided in said valveless head section; each said distributing section having its respective housing; a through-going cylindrical chamber made in said housing of each said distributing section; a distributing slide valve with reduced-diameter relieved areas, accommodated for reciprocation in said through cylindrical chamber made in said housing of each said distributing section; two closures closing from the ends each said through cylindrical chamber, limiting the reciprocation of said respective distributing slide valve and defining therewith two respective metering-out end chambers, each one of said two metering-out end chambers communicating with one of the relieved areas of said distributing slide valve of the preceding upstream one of said distributing sections in the direction of the lubricant flow; a central through-going duct made in said housing of each said distributing section, extending normally to the axis of said cylindrical through chamber and intersecting it; outlet ducts made in said housing of each said distributing section; the inlets of said outlet ducts connected to said through cylindrical chamber made in said housing of each respective one of said distributing sections; the outlets of said outlet ducts adapted to supply the lubricant to the friction couples, opening onto the external lateral surface of said housing of each respective one of said distributing sections; means for rotating one of said distributing slide valves about the axis thereof through a predetermined angle and for retaining it in the thus rotated position, mounted on one of said distributing slide valves and provided in at least one of said distributing sections; other outlet ducts made in said housing of said at least one section accommodating said distributing slide valve provided with said means for rotating it through a predetermined angle and retaining it in the thus rotated position; the inlets of said other outlet ducts belonging to a single plane and being uniformly angularly spaced about the perimeter of the cross-section of the wall of said through cylindrical chamber, with the geometric axes of said inlets dividing the circumference of the cross-section of said cylindrical chamber into predetermined angles; the outlets of said other outlet ducts belonging to a single plane normal to the axis of said through cylindrical chamber and opening onto the lateral surfaces of said distributing section; two distributing passages made each in the shoulder portion of at least one of said distributing slide valves provided with said means for rotating it through a predetermined angle and for retaining it in the thus rotated position, facing the respective one of said two metering-out end chambers, the inlet of each one of said distributing passages communicating with the relieved area of said respective slide valve, and the outlet of each one of said two distributing passages opening onto the external surface of the shoulder portion of said respective distributing slide valve; said outlet of one of said distributing passages communicating with one of said inlets of said outlets ducts in the extreme position of reciprocation of said respective slide valve, while said outlet of the other one of said distributing passages is accommodated intermediate said inlets of said outlet ducts in the same aforementioned position of said respective distributing slide valve; means for monitoring the axial and angular positions of said distributing slide valve, mounted on one of said distributing sections and operatively connected with said distributing slide valve. ### Claim 2 (depends on 1) A dosing device for feeding a lubricant to friction couples, as set forth in claim 1, wherein said means for monitoring the axial and angular position of said distributing slide valve comprise: a rod rigidly connected with said distributing slide valve and arranged concentrically therewith; at least one permanent magnet eccentrically supported by said rod and secured thereto; a closed-end sleeve arranged coaxially with one of said two closures and enclosing it; a passage made in said sleeve; at least one magnetically-responsive element accommodated in said passage; the contacts of said at least one magnetically-responsive element, adapted to interact with the magnetic field of said at least one permanent magnet in one of the angular and extreme axial positions of said distributing slide valve. ### Claim 3 (depends on 2) A dosing device of claim 2, wherein said closure and said closed-end sleeve are made of a non-magnetic material. ### Claim 4 (depends on 2) A dosing device of claim 2, wherein said means for monitoring the axial and angular position of said distributing slide valve include: first commutator means connectable to a voltage source; second commutator means connectable to a voltage source; a signal device mounted on said closed-end sleeve and electrically connected with said first commutator means and with said magnetically-responsive element, the latter being electrically connected with said second commutator means. ### Claim 5 (depends on 4) A dosing device of claim 4, wherein said signal device includes a light-emitting diode. ### Claim 6 (depends on 1) A dosing device for feeding a lubricant to friction couples, as set forth in claim 1, wherein said means for rotating said distributing slide valve about the axis thereof through a predetermined angle and for retaining it in the thus rotated position include teeth with single-side bevels, provided on the end faces of said distributing slide valve, with the bevels of said teeth on the opposite end faces being differently oriented relative to the axis of said slide valve, and teeth with single-side bevels provided on the end faces of each one of said two closures, facing the respective ones of said end faces of said distributing slide valve, the latter defining a meshing couple with the respective ones of said closures in the extreme positions of its reciprocation, so that when one such couple is engaged, the teeth of the other couple are spaced from one another by one half of the predetermined angle. ### Claim 7 (depends on 6) A dosing device for feeding a lubricant to friction couples, as set forth in claim 6, wherein said means for monitoring the axial and angular position of said distributing slide valve comprise: a rod rigidly connected with said distributing slide valve and arranged concentrically therewith; at least one permanent magnet eccentrically supported by said rod and secured thereto; a closed-end sleeve arranged coaxially with one of said two closures and enclosing it; a passage made in said sleeve; at least one magnetically-responsive element accommodated in said passage; the contacts of said at least one magnetically-responsive element, adapted to interact with the magnetic field of said at least one permanent magnet in one of the angular and extreme axial positions of said distributing slide valve. ### Claim 8 (depends on 7) A dosing device of claim 7, wherein said closure and said closed-end sleeve are made of a non-magnetic material. ### Claim 9 A dosing device for feeding a lubricant to friction couples, comprising: a valveless head section; a plurality of distributing sections; a valveless end section, said sections being successively interconnected in the direction of the lubricant flow; a central supply duct provided in said valveless head section; each said respective distributing section having its respective housing; a through-going cylindrical chamber made in said housing of each said distributing section; a distributing slide valve with reduced-diameter relieved areas, accommodated for reciprocation in said through cylindrical chamber made in said housing of each said distributing section; two closures closing from the ends each said through cylindrical chamber, limiting the reciprocation of said distributing slide valve and defining therewith two respective metering-out end chambers, each one of said two metering-out end chambers communicating with one of the relieved areas of said distributing slide valve of the preceding upstream one of said distributing sections in the direction of the lubricant flow; a central through-going duct made in said housing of each said distributing section, extending normally to the axis of said cylindrical through chamber and intersecting it; outlet ducts made in said housing of each said distributing section; the inlets of said outlet ducts connected to said through cylindrical chamber made in said housing of each respective one of said distributing sections; the outlets of said outlet ducts adapted to supply the lubricant to the friction couples, opening onto the lateral surface of said housing of each respective one of said distributing sections; means for rotating one of said distributing slide valves about the axis thereof through a predetermined angle and for retaining it in the thus rotated position, mounted on one of said distributing slide valves and provided in at least one of said distributing sections; at least one intermediate valveless section interposed between two said distributing sections of which at least one accommodates said distributing slide valve provided with said means for rotating it about the axis thereof through a predetermined angle for retaining it in the thus rotated position, adjoining the junction surfaces of said last-mentioned two distributing sections; a central through-going duct made in said at least one intermediate valveless section, coaxial with the central through duct of said distributing sections; two connection ducts made in said valveless head and end sections and in said at least one intermediate valveless section, each one of said two connection ducts connecting said end chamber of the downstream one of said distributing sections to the relieved area of said distributing slide valve of the upstream one of said distributing sections, in the direction of the lubricant flow; other outlet ducts made in said housing of at least one of said distributing sections with said distributing slide valve provided with said means for rotating it about the axis thereof through a predetermined angle and for retaining it in the thus rotated position; the inlets of said other outlet ducts belonging to a single plane and being uniformly angularly spaced about the perimeter of the cross-section of the wall of said respective through cylindrical chamber, with the geometric axes of said inlets dividing the circumference of the cross-section of said respective cylindrical chamber into the predetermined angles; some of the outlets of said other outlet ducts communicating with said connection ducts and opening onto the external lateral surface of said valveless section adjoining said distributing section with said distributing slide valve provided with said means for rotating it about the axis thereof through a predetermined angle and for retaining it in the thus rotated position; other outlets of said other outlet ducts opening onto another external lateral surface of said housing of said distributing section; two distributing passages made each in the shoulder portion of at least one of said distributing slide valves provided with said means for rotating it through a predetermined angle and for retaining it in the thus rotated position, facing the respective one of said two metering-out end chambers; the inlet of each one of said two distributing passages communicating with the relieved area of said respective distributing slide valve; the outlet of each one of said two distributing passages opening onto the external surface of the shoulder portion of said respective distributing slide valve; said outlet of one of said distributing passages communicating with one of said inlets of said outlet ducts when said respective distributing slide valve is in the extreme position of its reciprocation, while said outlet of the other one of said distributing passages is situated intermediate said inlets of said outlet ducts in the same aforementioned position of said respective distributing slide valve; means for monitoring the axial and angular position of said distributing slide valve, mounted on one of said distributing sections and operatively connected with said distributing slide valve. ### Claim 10 (depends on 9) A dosing device for feeding a lubricant to friction couples, as set forth in claim 9, wherein said means for rotating said distributing slide valve about the axis thereof through a predetermined angle and for retaining it in the thus rotated position include teeth with single-side bevels, provided on the end faces of said distributing slide valve, with the bevels of said teeth on the opposite end faces being differently oriented relative to the axis of said slide valve, and teeth with single-side bevels provided on the end faces of each one of said two closures, facing the respective ones of said end faces of said distributing slide valve, the latter defining a meshing couple with the respective ones of said closures in the extreme positions of its reciprocation, so that when one such couple is engaged, the teeth of the other couple are spaced from one another by one half of the predetermined angle. ### Claim 11 (depends on 10) A dosing device for feeding a lubricant to friction couples, as set forth in claim 10, wherein said means for monitoring the axial and angular position of said distributing slide valve comprise: a rod rigidly connected with said distributing slide valve and arranged concentrically therewith; at least one permanent magnet eccentrically supported by said rod and secured thereto; a closed-end sleeve arranged coaxially with one of said two closures and enclosing it; a passage made in said sleeve; at least one magnetically-responsive element accommodated in said passage; the contacts of said at least one magnetically-responsive element, adapted to interact with the magnetic field of said at least one permanent magnet in one of the angular and extreme axial positions of said distributing slide valve. ### Claim 12 (depends on 11) A dosing device of claim 11, wherein said closure and said closed-end sleeve are made of a non-magnetic material. ### Claim 13 (depends on 9) A dosing device for feeding a lubricant to friction couples, as set forth in claim 9, wherein said means for monitoring the axial and angular position of said distributing slide valve comprise: a rod rigidly connected with said distributing slide valve and arranged concentrically therewith; at least one permanent magnet eccentrically supported by said rod and secured thereto; a closed-end sleeve arranged coaxially with one of said two closures and enclosing it; a passage made in said sleeve; at least one magnetically-responsive element accommodated in said passage; the contacts of said at least one magnetically-responsive element, adapted to interact with the magnetic field of said at least one permanent magnet in one of the angular and extreme axial positions of said distributing slide valve. ### Claim 14 (depends on 13) A dosing device of claim 13, wherein said closure and said closed-end sleeve are made of a non-magnetic material. ### Claim 15 (depends on 13) A dosing device of claim 13, wherein said means for monitoring the axial and angular position of said distributing slide valve include: first commutator means connectable to a voltage source; second commutator means connectable to a voltage source; a signal device mounted on said closed-end sleeve and electrically connected with said first commutator means and with said magnetically-responsive element, the latter being electrically connected with said second commutator means. ### Claim 16 (depends on 15) A dosing device of claim 15, wherein said signal device includes a light-emitting diode.