US1849698A - Piston and piston ring - Google Patents
Piston and piston ring Download PDFInfo
- Publication number
- US1849698A US1849698A US462711A US46271130A US1849698A US 1849698 A US1849698 A US 1849698A US 462711 A US462711 A US 462711A US 46271130 A US46271130 A US 46271130A US 1849698 A US1849698 A US 1849698A
- Authority
- US
- United States
- Prior art keywords
- piston
- ring
- slots
- cylinder
- narrow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
- F16J9/206—One-piece oil-scraping rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
- F16J9/203—Oil-scraping rings
Definitions
- My invention relates to pistons and piston rings for internal combustion engines and more particularly to slotted rings for conveying the excess lubricant from the cylinder 6 wall and preventing oil pumping.
- the principal object ofmy invention is to provide an improved slotted oil ring hav ing the outer portions of the drain slots widened to provide narrow ribs having parallel sides and cylinder contacting-surfaces of minimum area.
- Fig. 1 is a detailed vertical section taken through part of a piston and ring embodying my invention
- Fig. 2 is a plan View of the ring
- Fig. 3 is an edge elevation of the same.
- the piston 4, which operates in the cylinder 5 of the internal combustion engine, may be of any desired form and as usual is pro vided with the ordinary compression rings 2 6.
- the bottom ring groove 7 has drain apertures 8 extending to the interior of the piston so that the excess lubricant scraped from the cylinder wall by .mygi nproved ring 9 may be returned to the crankjgcase,
- My ring 9 is provided with equally spaced slots 10 separated by triangular shaped bridges 11.
- the inner portions 10 of the slots are narrow and of uniform width and the outer portions 10" are wider than the inner portions and are of uniform width.
- the ringvthe narrow slots are first formed by a suitable tool. Then the outer portions of the slots are widened by circular saws to provide the very narrow ribs 12 which are of uniform width and have parallel sides. The bottom surfaces 13 of the slots on either side of the inner portions 10 of the slots are arcuate, being deepest at points midway between the ends of the slots. By widening the outer portions of the slots, the cylinder contacting surfaces of the ribs are materially reduced so that .their combined area is less than one-half of the entire area of the exterior faceof the ring. Thus the pressure of the ring against the cylinder wall,
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
March 15, 1932. c. N. TEETOR 1,849,698
PISTON AND PISTON RING 2 Filed June 21, 1930 77 JV k HHHIMIHI Patented Mar. 15, 1932 UNITED STATES PATENT OFFICE CHARLES N. TEETOR, F HAGERSTOWN, INDIANA, ASSIGNOB TO THE PERFECT CIRCLE COMPANY, OF HAGERSTO'WN, INDIANA, A CORPORATION OF INDIANA ris'ron AND PISTON 1mm Application filed June 21,
My invention relates to pistons and piston rings for internal combustion engines and more particularly to slotted rings for conveying the excess lubricant from the cylinder 6 wall and preventing oil pumping.
The principal object ofmy invention is to provide an improved slotted oil ring hav ing the outer portions of the drain slots widened to provide narrow ribs having parallel sides and cylinder contacting-surfaces of minimum area.
This and other objects of my invention will more fully appear from the following specification, reference being had to the accoml5 panying drawings in which;
Fig. 1 is a detailed vertical section taken through part of a piston and ring embodying my invention;
Fig. 2 is a plan View of the ring; and
Fig. 3 is an edge elevation of the same.
The piston 4, which operates in the cylinder 5 of the internal combustion engine, may be of any desired form and as usual is pro vided with the ordinary compression rings 2 6. The bottom ring groove 7 has drain apertures 8 extending to the interior of the piston so that the excess lubricant scraped from the cylinder wall by .mygi nproved ring 9 may be returned to the crankjgcase,
My ring 9 is provided with equally spaced slots 10 separated by triangular shaped bridges 11. The inner portions 10 of the slots are narrow and of uniform width and the outer portions 10" are wider than the inner portions and are of uniform width.
In making the ringvthe narrow slots are first formed by a suitable tool. Then the outer portions of the slots are widened by circular saws to provide the very narrow ribs 12 which are of uniform width and have parallel sides. The bottom surfaces 13 of the slots on either side of the inner portions 10 of the slots are arcuate, being deepest at points midway between the ends of the slots. By widening the outer portions of the slots, the cylinder contacting surfaces of the ribs are materially reduced so that .their combined area is less than one-half of the entire area of the exterior faceof the ring. Thus the pressure of the ring against the cylinder wall,
1930. Serial No. 462,711.
per unit area of contacting surface, is increased and' the ring functlons much more efficiently.
I claim:
In combination with an engine piston having an annular groove with apertures extending therefrom to the interior of the piston to permit the draining of excess lubricant from my name.
CHARLES N. TEETOR.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US462711A US1849698A (en) | 1930-06-21 | 1930-06-21 | Piston and piston ring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US462711A US1849698A (en) | 1930-06-21 | 1930-06-21 | Piston and piston ring |
Publications (1)
Publication Number | Publication Date |
---|---|
US1849698A true US1849698A (en) | 1932-03-15 |
Family
ID=23837487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US462711A Expired - Lifetime US1849698A (en) | 1930-06-21 | 1930-06-21 | Piston and piston ring |
Country Status (1)
Country | Link |
---|---|
US (1) | US1849698A (en) |
-
1930
- 1930-06-21 US US462711A patent/US1849698A/en not_active Expired - Lifetime
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