US1811012A - Piston packing - Google Patents
Piston packing Download PDFInfo
- Publication number
- US1811012A US1811012A US498851A US49885130A US1811012A US 1811012 A US1811012 A US 1811012A US 498851 A US498851 A US 498851A US 49885130 A US49885130 A US 49885130A US 1811012 A US1811012 A US 1811012A
- Authority
- US
- United States
- Prior art keywords
- ring
- expander
- piston
- groove
- humps
- 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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Images
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49249—Piston making
- Y10T29/49256—Piston making with assembly or composite article making
Definitions
- An object of the invention is the provision of a ring expander formed from a single piece ofspring metal and so shaped as to engage both the V-shaped groove of the ring and the us bottom of the ring groove in the piston, and adapted, when in use, to exert an outward and lateral pressure u on the ring, whereby the ring sections will rmly engage both the cylinder wall and the ring lands.
- Another object'of the invention is the extreme simplicity of the device, the cheapness of manufacture, and its high efliciency in use.
- Figure 1 is a plan view a ring expander constructed in accordance/with the inven- 30 tion, I I
- Figure 2 is an edge view thereof.
- Figure 3 is a vertical section of a piston and cylinder, parts in elevation, and showing the device in use. 7 1
- Figure 4 is a fragmentary horizontal section taken on line 44 of Figure 3, and,
- Figure 5 is a section taken on line 55 of Figure 1, illustrating a slight modification of the invention.
- numeral designates a ring expander formed from a. single flat strip of flexible spring metal, and shaped to conform generally to a ring having free ends.
- the ext pander is provided throughout its length with a plurality of equi-distantly spaced humps 11, having pairs of lateral integral extensions 12.
- the extensions 12 are bent inwardly at substantially angle.
- the ex- 5 tensions 12, as clearly shown are relatively vertical walls of the rings 17 and 18 are narrow, and are inclined at an abrupt angle from the fiat face of the humps 11.
- the numeral 13 designates a piston, having piston grooves 14, as is customary.
- the piston has sliding movement within a cyliner 15.
- the outer vertical walls of the rings engage the wall of the cylinder.
- the expander ring 10 In use,-the expander ring 10 is placed within the groove 14, and the ring sections 17 and 18 fitted into the groove over the ring 10, in the usual manner. This action causes the several humps 11 to engage within the V-shaped groove 20 but spaced from the apex of the groove'with the extensions 12 engaging the inclined walls, thereof.
- a ring of the character shown will be given a constant pressure outwardly, and laterally, to rovide a good oil-tight bearing on the cylinder wall, and an equally good bearing of the outer flat faces of the ring sections 17 and 18, upon their respective lands.
- the extensions 12 . may be curved, as shown in Figure 5.
- the equal spacing of the humps 11 will, likewise, insure of an equal pressure upon the ring sections throughout their circumference.
- the relatively long curve of the humps 11 will exert a maximum of outward pressure upon the rings 17 and 18 While the relatively narrow extensions 12 will insure a suificient lateral pressure upon the rings for a proper seating upon their respective lands.
- a corrugated piston ring expander comprising a body formed of a strip of flat spring sheet metal provided with spaced inwardly extending divergent wings connected to the opposite side edges of the body at their inner ends and having their outer ends freely flexible with respect to the body portion of said expander.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
June 23, 1931. J. G. HODGE v 1,811,012
PISTON PACKING Filed Nov. 28 1930 V INVENTOR; JIMES G. Hoaag,
A TTORNEY.
Patented June 23, 1931 UNITED STATES PATENT OFFICE JAMES G. HODGE, EAST ORANGE, NEW JERSEY PISTON PACKING Application-filed November 28, 1930. Serial No. 498,851.
m formin jointly a V-shaped groove.
An object of the invention is the provision of a ring expander formed from a single piece ofspring metal and so shaped as to engage both the V-shaped groove of the ring and the us bottom of the ring groove in the piston, and adapted, when in use, to exert an outward and lateral pressure u on the ring, whereby the ring sections will rmly engage both the cylinder wall and the ring lands.
Another object'of the invention is the extreme simplicity of the device, the cheapness of manufacture, and its high efliciency in use.
Other important objects and advantages of the invention will be apparent during the course of the following description, reference being had to the accompanying drawings.
Referring to the drawin s: I
Figure 1 is a plan view a ring expander constructed in accordance/with the inven- 30 tion, I I
Figure 2 is an edge view thereof.
Figure 3 is a vertical section of a piston and cylinder, parts in elevation, and showing the device in use. 7 1
1r. Figure 4 is a fragmentary horizontal section taken on line 44 of Figure 3, and,
Figure 5 is a section taken on line 55 of Figure 1, illustrating a slight modification of the invention.
a Referring, specifically, to the drawings, the
numeral designates a ring expander formed from a. single flat strip of flexible spring metal, and shaped to conform generally to a ring having free ends. The ext pander is provided throughout its length with a plurality of equi-distantly spaced humps 11, having pairs of lateral integral extensions 12. The extensions 12 are bent inwardly at substantially angle. The ex- 5 tensions 12, as clearly shown are relatively vertical walls of the rings 17 and 18 are narrow, and are inclined at an abrupt angle from the fiat face of the humps 11.
The numeral 13 designates a piston, having piston grooves 14, as is customary. The piston has sliding movement within a cyliner 15. Mounted Within the grooves 14, are metallic packing rings 16, each complete ring comprising a pair of companion ring'sections 17 and 18, having flat sides. The inner beveled, as at 19, forming jointly a V-shaped groove 20. The outer vertical walls of the rings engage the wall of the cylinder.
In use,-the expander ring 10 is placed within the groove 14, and the ring sections 17 and 18 fitted into the groove over the ring 10, in the usual manner. This action causes the several humps 11 to engage within the V-shaped groove 20 but spaced from the apex of the groove'with the extensions 12 engaging the inclined walls, thereof. The
valleys between the humps 11 obviouslywill engage the vertical wall of the groove.
The constant pressure upon the ring'sections 17 and 18 is assured by reason of the 7 spacing of the expander from the apex of the groove, permitting of'the outward movement of the humps 11 as the rings become worn both upon their faces and sides.
From the foregoing, it will be seen that with the use of the expander above described,
a ring of the character shown will be given a constant pressure outwardly, and laterally, to rovide a good oil-tight bearing on the cylinder wall, and an equally good bearing of the outer flat faces of the ring sections 17 and 18, upon their respective lands.
v If desired, the extensions 12 .may be curved, as shown in Figure 5. V
It will be apparent, therefore, that a highly efiicient ring and expander has been provided. The constant outward and lateral pressure exerted on the ring sections will insure of a positive oil-tight joint, both between the face of the'ring, and the ring lands.
iHeretofore, oil has been permitted topass around the back of the ring, due to wearing of the lands, resulting in anup and down movement of the ring in'its groove. The
expander of the present inventionwill effectively overcome this objection. The equal spacing of the humps 11 will, likewise, insure of an equal pressure upon the ring sections throughout their circumference. The relatively long curve of the humps 11 will exert a maximum of outward pressure upon the rings 17 and 18 While the relatively narrow extensions 12 will insure a suificient lateral pressure upon the rings for a proper seating upon their respective lands.
It is to be understood that the invention is not to be limited to the precise construction set forth, but that it includes within its purview whatever. changes fairly come within either the terms or the spirit of the appended claim.
Having described my invention, what I claim is:
A corrugated piston ring expander comprising a body formed of a strip of flat spring sheet metal provided with spaced inwardly extending divergent wings connected to the opposite side edges of the body at their inner ends and having their outer ends freely flexible with respect to the body portion of said expander.
In testimony whereof I al'iix my signature.
JAMES G. HODGE.
HIS
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US498851A US1811012A (en) | 1930-11-28 | 1930-11-28 | Piston packing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US498851A US1811012A (en) | 1930-11-28 | 1930-11-28 | Piston packing |
Publications (1)
Publication Number | Publication Date |
---|---|
US1811012A true US1811012A (en) | 1931-06-23 |
Family
ID=23982767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US498851A Expired - Lifetime US1811012A (en) | 1930-11-28 | 1930-11-28 | Piston packing |
Country Status (1)
Country | Link |
---|---|
US (1) | US1811012A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695825A (en) * | 1954-07-20 | 1954-11-30 | Perfect Circle Corp | Piston ring assembly |
US2769675A (en) * | 1954-11-26 | 1956-11-06 | Muskegon Piston Ring Co Inc | Piston ring oil sealing structure |
US2842411A (en) * | 1954-12-27 | 1958-07-08 | Sealed Power Corp | Triple purpose piston ring expander |
DE1089228B (en) * | 1954-07-20 | 1960-09-15 | Perfect Circle Corp | Piston ring seal |
US3103365A (en) * | 1959-11-06 | 1963-09-10 | Callerfelt Sven Gunnar | Oil-control piston rings |
US3254884A (en) * | 1961-06-28 | 1966-06-07 | Sylvania Electric Prod | Resilient helix mount for traveling wave tube |
US3326560A (en) * | 1965-09-13 | 1967-06-20 | Nicholas D Trbovich | Adjustable and wear-resistant seal |
US3778877A (en) * | 1970-09-28 | 1973-12-18 | Mc Donnell Douglas Corp | Method of making piston ring expander |
US4279424A (en) * | 1978-10-26 | 1981-07-21 | Sulzer Brothers Limited | Sealing arrangement for a joint between two stator parts of a turbomachine |
US6668452B2 (en) * | 2001-06-20 | 2003-12-30 | Krupp Bilstein Gmbh | Piston-rod scraping ring accommodated in a groove in a dashpot cap, and method of inserting such a ring in such a groove |
-
1930
- 1930-11-28 US US498851A patent/US1811012A/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695825A (en) * | 1954-07-20 | 1954-11-30 | Perfect Circle Corp | Piston ring assembly |
DE1089228B (en) * | 1954-07-20 | 1960-09-15 | Perfect Circle Corp | Piston ring seal |
US2769675A (en) * | 1954-11-26 | 1956-11-06 | Muskegon Piston Ring Co Inc | Piston ring oil sealing structure |
US2842411A (en) * | 1954-12-27 | 1958-07-08 | Sealed Power Corp | Triple purpose piston ring expander |
US3103365A (en) * | 1959-11-06 | 1963-09-10 | Callerfelt Sven Gunnar | Oil-control piston rings |
US3254884A (en) * | 1961-06-28 | 1966-06-07 | Sylvania Electric Prod | Resilient helix mount for traveling wave tube |
US3326560A (en) * | 1965-09-13 | 1967-06-20 | Nicholas D Trbovich | Adjustable and wear-resistant seal |
US3778877A (en) * | 1970-09-28 | 1973-12-18 | Mc Donnell Douglas Corp | Method of making piston ring expander |
US4279424A (en) * | 1978-10-26 | 1981-07-21 | Sulzer Brothers Limited | Sealing arrangement for a joint between two stator parts of a turbomachine |
US6668452B2 (en) * | 2001-06-20 | 2003-12-30 | Krupp Bilstein Gmbh | Piston-rod scraping ring accommodated in a groove in a dashpot cap, and method of inserting such a ring in such a groove |
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