JPS5557754A - Piston ring - Google Patents

Piston ring

Info

Publication number
JPS5557754A
JPS5557754A JP12991378A JP12991378A JPS5557754A JP S5557754 A JPS5557754 A JP S5557754A JP 12991378 A JP12991378 A JP 12991378A JP 12991378 A JP12991378 A JP 12991378A JP S5557754 A JPS5557754 A JP S5557754A
Authority
JP
Japan
Prior art keywords
ring
land
piston
cylinder
shaped cross
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.)
Pending
Application number
JP12991378A
Other languages
Japanese (ja)
Inventor
Hideo Hama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP12991378A priority Critical patent/JPS5557754A/en
Publication of JPS5557754A publication Critical patent/JPS5557754A/en
Pending legal-status Critical Current

Links

Landscapes

  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PURPOSE: To prevent a piston ring from being collided with a piston land and make it easy to radiate heat from the piston, by fitting the ring with a U-shaped cross section to the land so that the ring grasps the land with a certain force.
CONSTITUTION: In a volumetric machine equipped with a cylinder S and piston P, a ring R, having a U-shaped cross section corresponding to the shape of a piston land 3 and having a width 1 in its free state a bit smaller than the size of the land 3, is so designed that it can grasp the land 3 with a certain force when it is fitted to the land 3. A portion 2 is slightly projected to increase the closeness of the ring's inner surface to the land's surface, while the expansive force of the ring itself makes it close to the inner surface of the cylinder S. This construction permits to use a large ring groove 5 for making the gas pressure work well on the ring R in the rear, and the ring R is never collided with the land 3 in the ring groove.
COPYRIGHT: (C)1980,JPO&Japio
JP12991378A 1978-10-21 1978-10-21 Piston ring Pending JPS5557754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12991378A JPS5557754A (en) 1978-10-21 1978-10-21 Piston ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12991378A JPS5557754A (en) 1978-10-21 1978-10-21 Piston ring

Publications (1)

Publication Number Publication Date
JPS5557754A true JPS5557754A (en) 1980-04-28

Family

ID=15021484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12991378A Pending JPS5557754A (en) 1978-10-21 1978-10-21 Piston ring

Country Status (1)

Country Link
JP (1) JPS5557754A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014088931A (en) * 2012-10-31 2014-05-15 Showa Corp Shock absorber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014088931A (en) * 2012-10-31 2014-05-15 Showa Corp Shock absorber

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