US1698073A - Device for reducing piston slap in internal-combustion engines - Google Patents

Device for reducing piston slap in internal-combustion engines Download PDF

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Publication number
US1698073A
US1698073A US222094A US22209427A US1698073A US 1698073 A US1698073 A US 1698073A US 222094 A US222094 A US 222094A US 22209427 A US22209427 A US 22209427A US 1698073 A US1698073 A US 1698073A
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Prior art keywords
piston
ring
groove
combustion engines
internal
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Expired - Lifetime
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US222094A
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Dean M Solenberger
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SIMPLEX PISTON RING Co OF
SIMPLEX PISTON RING Co OF AMERICA Inc
Original Assignee
SIMPLEX PISTON RING Co OF
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Publication date
Priority claimed from US91601A external-priority patent/US1662544A/en
Application filed by SIMPLEX PISTON RING Co OF filed Critical SIMPLEX PISTON RING Co OF
Priority to US222094A priority Critical patent/US1698073A/en
Application granted granted Critical
Publication of US1698073A publication Critical patent/US1698073A/en
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    • 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

  • The. invention relates to devices for preventing piston slap in internal combustion engines and forms subject matter of my former application a divisional of .part of the Ser.
  • the present invention is a construction of this general character in which the piston is provided with an eccentric groove being of greater depth on one side than the other and the invention consists in the novel construe tion and combination of parts as hereinafter se tforth.
  • FIG. 1 is a horizontal section through an engine cylinder and piston constructed in accordance with my invention.
  • I Figure 2 is a vertical section therethrough.
  • piston rings are frequently provided with expanders located between the inner face of the ring and the bottom of the ring groove to increase the radial pressure and to distribute the same about the axis of the cylinder.
  • Such a. construction will not always prevent piston slap as the radial pressures on opposite sides are in exact balance and therefore may not: under some conditions overcome the alternately oposite angular thrust of the connecting rod.
  • the clearance between the inner face of the ring and the bottom of the ring groove is greater on one side of the piston than the diametrically opposite side this will cause a preponderance of resilient pressure in the shallow will tend to hol cylinder.
  • A is the piston having the eccentric groove B therein having the greatest depth at the point C and the least depth at the diametrically opposite point C.
  • B is a transsplit piston ring located in said groove and E is a corrugated ribbon expanderinscrted between the inner face of the ring and the bottom of the groove.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Jan, 8, 1929.
D. M. SOLENBERGER DEVICE FOR REDUCING PISTON SLAP IN INTERNAL COMBUSTION ENGINES Original Filed March 1926 avwzulo'a 647? N 5026771 676)" Patented Jan. 8, 1929.
UNITED DEAN M. SOLENBERGER, OF CLEVELAND, OHIO, ASSIGNOR TO THE SIMPLEX PISTON RING COMPANY OF AMERICA, INC., A CORPORATION OF OHIO.
DEVICE FOR REDUCING PISTON SLAP IN INTERNAL-COMBUSTION ENGINES.
Original application filed March 1, 1926, Serial No. 91,601, new Patent No. 1,662,544, dated March 13, 1928. Divided and this application filed September 26, 1927. Serial No. 222,094.
The. invention relates to devices for preventing piston slap in internal combustion engines and forms subject matter of my former application a divisional of .part of the Ser.
No. 91,601, filed March 1, 1926. In this earlier application a. numberof different specific constructions were shown all including aradial- 1y expansible piston ring in a groove in the piston together with means for exerting a preponderance of'radial pressure between the ring and one side of the piston whereby said piston is held in closer contact with the opposite side of the cylinder.
The present invention is a construction of this general character in which the piston is provided with an eccentric groove being of greater depth on one side than the other and the invention consists in the novel construe tion and combination of parts as hereinafter se tforth.
In the drawings; I Figure 1 is a horizontal section through an engine cylinder and piston constructed in accordance with my invention.
I Figure 2 is a vertical section therethrough. In the present state of the art piston rings are frequently provided with expanders located between the inner face of the ring and the bottom of the ring groove to increase the radial pressure and to distribute the same about the axis of the cylinder. Such a. construction will not always prevent piston slap as the radial pressures on opposite sides are in exact balance and therefore may not: under some conditions overcome the alternately oposite angular thrust of the connecting rod. f, however, the clearance between the inner face of the ring and the bottom of the ring groove is greater on one side of the piston than the diametrically opposite side this will cause a preponderance of resilient pressure in the shallow will tend to hol cylinder.
ort-ion of the groove which the piston to one wall of the To produce the construction just described all that is necessary is to deepen the groove on one side of the piston which may be practically accomplished by the use of a suitable grooving tool. The same or similar piston rings and reinforcingexpanders are then inserted in the groove with the result that a differential radial pressure is applied to di ametrically opposite sides of the ring. This, as previously stated, will cause the piston to travel in closer contact with the cylinder wall on the low pressure side and will thereby lessen piston sla In detail A is the piston having the eccentric groove B therein having the greatest depth at the point C and the least depth at the diametrically opposite point C. B is a transsplit piston ring located in said groove and E is a corrugated ribbon expanderinscrted between the inner face of the ring and the bottom of the groove. By properly selecting the expander E any desired differential pressure may be placed upon the piston;
What I claim as my invention is:
1. The combination with a cylinder. of a piston loosely fitting the same provided with a ring groove of greater depth on one side of said piston than upon the diametrically opposite side, a. trans-split ring engaging said groove and a corrugated ribbon expander located between the inner face of the ring and the bottom of the groove,
2. The combination with a cylinder, of a piston loosely fitting the same provided with an eccentric ring groove having the greater depth on one side of the piston than upon the diametrically oppositeside, a trans-split ring ofuniform radial depth engaging said groove and a uniformly corrugated ribbon expander located bet-ween the inner face of the ring and the bottom of the ring groove.
In testimony whereof I aifix my signature.
DEAN M. SOLENBERGE-R.
US222094A 1926-03-01 1927-09-26 Device for reducing piston slap in internal-combustion engines Expired - Lifetime US1698073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US222094A US1698073A (en) 1926-03-01 1927-09-26 Device for reducing piston slap in internal-combustion engines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91601A US1662544A (en) 1926-03-01 1926-03-01 Piston ring
US222094A US1698073A (en) 1926-03-01 1927-09-26 Device for reducing piston slap in internal-combustion engines

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US1698073A true US1698073A (en) 1929-01-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4966068A (en) * 1984-11-26 1990-10-30 Ficht Gmbh Split ceramic piston ring arrangement with nested biasing ring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4966068A (en) * 1984-11-26 1990-10-30 Ficht Gmbh Split ceramic piston ring arrangement with nested biasing ring

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