GB1319958A - Pistons - Google Patents

Pistons

Info

Publication number
GB1319958A
GB1319958A GB1319958DA GB1319958A GB 1319958 A GB1319958 A GB 1319958A GB 1319958D A GB1319958D A GB 1319958DA GB 1319958 A GB1319958 A GB 1319958A
Authority
GB
United Kingdom
Prior art keywords
inch
groove
skirt
sept
depth
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
Application number
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.)
Wellworthy Ltd
Original Assignee
Wellworthy Ltd
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 Wellworthy Ltd filed Critical Wellworthy Ltd
Publication of GB1319958A publication Critical patent/GB1319958A/en
Expired legal-status Critical Current

Links

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
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/08—Constructional features providing for lubrication

Abstract

1319958 Pistons WELL-WORTHY Ltd 22 Sept 1970 [24 Sept 1969] 47080/69 Heading F2T [Also in Division B3] The skirt 1 of a light alloy piston is formed in its outer surface 3 with a helical groove 2 which has a depth not exceeding substantially 0À0013 inch. The profile of the groove may be symmetrical, Fig. 1, or asymmetrical, Fig. 3, and a sharp corner may be formed at the juncture of its upper part 2a with the surface 3. The groove which is stated to act as an oil reservoir in use, may have a depth and width of approximately 0À001 inch and 0À015 inch respectively and may be continuous or interrupted e.g. at the thrust faces. It may be cut simultaneously with machining the outer contour of the skirt which may taper longitudinally and/or be of oval crosssection.
GB1319958D 1969-09-24 1969-09-24 Pistons Expired GB1319958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4708069 1969-09-24

Publications (1)

Publication Number Publication Date
GB1319958A true GB1319958A (en) 1973-06-13

Family

ID=10443643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1319958D Expired GB1319958A (en) 1969-09-24 1969-09-24 Pistons

Country Status (2)

Country Link
DE (1) DE2046978A1 (en)
GB (1) GB1319958A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171776A (en) * 1985-03-02 1986-09-03 Ae Plc Pistons

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3437111A1 (en) * 1984-10-10 1986-04-10 Kolbenschmidt AG, 7107 Neckarsulm LIGHT METAL PISTON
DE3531801A1 (en) * 1985-09-06 1987-03-19 Kolbenschmidt Ag LIGHT METAL PISTON
DE102012006780B4 (en) 2012-04-03 2018-03-15 Thomas Magnete Gmbh Electromagnetic piston pump with piston sliding bearing, because of the pumping action of a directed drag flow

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171776A (en) * 1985-03-02 1986-09-03 Ae Plc Pistons
US4760771A (en) * 1985-03-02 1988-08-02 Ae Plc Pistons with oil retaining cavities

Also Published As

Publication number Publication date
DE2046978A1 (en) 1971-04-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee