US1512362A - Piston-ring spring - Google Patents
Piston-ring spring Download PDFInfo
- Publication number
- US1512362A US1512362A US586814A US58681422A US1512362A US 1512362 A US1512362 A US 1512362A US 586814 A US586814 A US 586814A US 58681422 A US58681422 A US 58681422A US 1512362 A US1512362 A US 1512362A
- Authority
- US
- United States
- Prior art keywords
- piston
- spring
- ring
- bows
- ring spring
- 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
- F16J9/06—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging
- F16J9/061—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging using metallic coiled or blade springs
- F16J9/063—Strip or wire along the entire circumference
Definitions
- This invention relates to piston ring devices, and more particularly to springs for expanding rings of pistons against the cylinder walls.
- Figure 2 is a vertical central section of the device
- Figure 3 is a rectilinear projection in plan of the spring.
- Fig. at is a sectional view, on an enlarged scale, showing the setting of the spring.
- the device of the present invention is shown as combined with an internal combustion engine cylinder 2 in which operates a piston 3 having the usual ring grooves 4 in which are retained the piston rings 5. It is the practice to provide means for ex panding the rings 5 outwardly against the wall of the cylinder and ordinarily these usual rings quickly wear at the points of contact where they rest against the bottom of the rin grooves 4.
- the spring is formed with a number of transverse corrugations or concavo-convex curves having alternately convex bows 7 will be disposed contiguous to the bottom of its groove 4 in the piston.
- a feature of my invention is that the inner bows 7 of the spring are concaved by slight or short inwardly pressed portions 8 at the crest of each bow 7.
- the inner convex curves of the packing spring are dented inwardly and this results in the formation of an elongated bearing spot engaging the bottom of the respective groove.
- the convex bows 6 have flattened crests 6 which bend as the ring is coiled to fita groove. These crests then flex outwardly with a radius much larger than the radius of the bows and approximate the curvature of the cylinder wall.
- a piston ring expanding spring consisting of a strip of flat stoclg transversely corrugated from end to end to form alternately disposed short and long bows, the innermost bows of the ring forming bearing lands, the outer bows having flattened crests.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
Dct. 192%..
H. C. PHELPS PISTON R-LNG SPRING Fil d Sen 1922 Patented Get. 21, 1924.
HENRY C. PHELPS, OF BURBANK, CALIFORNIA.
PISTON-RING SPRING.
Application filed September 8, 1922. Serial No. 586,814.
To all whom it may concern:
Be it known that I, HENRY C. PHELPS, a
citizen of the United States, residing at Burbank, in the county of Los Angeles'and State of California, have invented new and useful Improvements in Piston-Ring Springs, of which the following is a specification.
' This invention relates to piston ring devices, and more particularly to springs for expanding rings of pistons against the cylinder walls.
It is an object of the present invention to provide an, improved piston ring spring to obtain a greater length of life of the springs, and more particularly it is anobject of the invention to provide for an increased zone of bearing contacts between the spring and the bottom of the piston groove against which the spring reacts.
Other objects will be made manifest in the following specification of an embodiment of the invention illustrated in the accompanying drawings, in which'- Figure 1 is a horizontal section through an engine cylinder and its piston and showing the improved ring in plan;
Figure 2 is a vertical central section of the device;
Figure 3 is a rectilinear projection in plan of the spring.
Fig. at is a sectional view, on an enlarged scale, showing the setting of the spring.
The device of the present invention. is shown as combined with an internal combustion engine cylinder 2 in which operates a piston 3 having the usual ring grooves 4 in which are retained the piston rings 5. It is the practice to provide means for ex panding the rings 5 outwardly against the wall of the cylinder and ordinarily these usual rings quickly wear at the points of contact where they rest against the bottom of the rin grooves 4.
It is a Iroad object of the invention to lengthen the life of the ring springs by providing greater bearing area. As clearly shown in Figure 3, the spring is formed with a number of transverse corrugations or concavo-convex curves having alternately convex bows 7 will be disposed contiguous to the bottom of its groove 4 in the piston.
A feature of my invention is that the inner bows 7 of the spring are concaved by slight or short inwardly pressed portions 8 at the crest of each bow 7. In other words, the inner convex curves of the packing spring are dented inwardly and this results in the formation of an elongated bearing spot engaging the bottom of the respective groove.
From this it will be seen that in a given spring with a suitable number of bows 7 the zones of contact of the bows will be increased by the indentations 8 which produce the contiguous bearing lands and, therefore, I have provided a ring of greater durability and length of life as compared to the usual concavo-convexly bowed springs.
The convex bows 6 have flattened crests 6 which bend as the ring is coiled to fita groove. These crests then flex outwardly with a radius much larger than the radius of the bows and approximate the curvature of the cylinder wall.
Further embodiments, modifications and changes may be resorted to within the spirit of the invention as here claimed.
What is claimed is;
A piston ring expanding spring consisting of a strip of flat stoclg transversely corrugated from end to end to form alternately disposed short and long bows, the innermost bows of the ring forming bearing lands, the outer bows having flattened crests.
In testimony whereof I have signed my name to this specification.
HENRY G. PHELPS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US586814A US1512362A (en) | 1922-09-08 | 1922-09-08 | Piston-ring spring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US586814A US1512362A (en) | 1922-09-08 | 1922-09-08 | Piston-ring spring |
Publications (1)
Publication Number | Publication Date |
---|---|
US1512362A true US1512362A (en) | 1924-10-21 |
Family
ID=24347209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US586814A Expired - Lifetime US1512362A (en) | 1922-09-08 | 1922-09-08 | Piston-ring spring |
Country Status (1)
Country | Link |
---|---|
US (1) | US1512362A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2884654A (en) * | 1951-07-21 | 1959-05-05 | Ace Products Company | Wiper ring |
US3254884A (en) * | 1961-06-28 | 1966-06-07 | Sylvania Electric Prod | Resilient helix mount for traveling wave tube |
US4684905A (en) * | 1983-12-14 | 1987-08-04 | Weinschel Engineering | Load-bearing detent mechanism |
US5421435A (en) * | 1992-03-23 | 1995-06-06 | Shimano Inc. | Brake apparatus for a bicycle |
US20050039995A1 (en) * | 2002-06-03 | 2005-02-24 | Fujitsu Limited | Shock absorbing apparatus for internal unit |
US20150042025A1 (en) * | 2012-03-12 | 2015-02-12 | Nhk Spring Co., Ltd. | Wave spring and load adjusting method therefor |
-
1922
- 1922-09-08 US US586814A patent/US1512362A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2884654A (en) * | 1951-07-21 | 1959-05-05 | Ace Products Company | Wiper ring |
US3254884A (en) * | 1961-06-28 | 1966-06-07 | Sylvania Electric Prod | Resilient helix mount for traveling wave tube |
US4684905A (en) * | 1983-12-14 | 1987-08-04 | Weinschel Engineering | Load-bearing detent mechanism |
US5421435A (en) * | 1992-03-23 | 1995-06-06 | Shimano Inc. | Brake apparatus for a bicycle |
USRE37099E1 (en) * | 1992-03-23 | 2001-03-20 | Shimano, Inc. | Brake apparatus for a bicycle |
US20050039995A1 (en) * | 2002-06-03 | 2005-02-24 | Fujitsu Limited | Shock absorbing apparatus for internal unit |
US20150042025A1 (en) * | 2012-03-12 | 2015-02-12 | Nhk Spring Co., Ltd. | Wave spring and load adjusting method therefor |
US9360074B2 (en) * | 2012-03-12 | 2016-06-07 | Nhk Spring Co., Ltd. | Wave spring and load adjusting method therefor |
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