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Machine translation
1. (WO1980002308) OIL COOLED PISTON
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002308    International Application No.:    PCT/US1979/000259
Publication Date: 30.10.1980 International Filing Date: 23.04.1979
IPC:
F01P 3/08 (2006.01), F02F 3/00 (2006.01), F02F 3/22 (2006.01)
Applicants:
Inventors:
Priority Data:
US79/00259 23.04.1979 WO
Title (EN) OIL COOLED PISTON
(FR) PISTON REFROIDI PAR HUILE
Abstract: front page image
(EN)Substantial heat is generated at the crown portion (18) of a piston (10). Cooling fluid has been directed to cavities (46) in the underside of the crown (18). However, at critical points of the piston cycle, the fluid drains from the cavities due to the forces of gravity. An oil cooled piston (10) is provided which includes a fluid trap (50) adjacent the crown (18). Some of the cooling fluid is trapped as it drains and is retained to enhance cooling of the crown (18). The fluid trap (50) includes a slot (60) permitting a jet spray of lubricating oil to be directed past the trap (50) to the cavities adjacent the underside of the crown (18).
(FR)Une chaleur sensible est produite au niveau de la partie de la couronne (18) d"un piston (10) Un fluide de refroidissement a ete dirige vers les cavites (46) en dessous de la couronne (18). Cependant, en des points critiques du cycle du piston, le fluide sort des cavites a cause des forces de gravite. Un piston refroidi par huile (10) comprend un clapet de fluide (50) adjacent a la couronne (18). Une certaine quantite de fluide de refroidissement est emprisonne lorsqu"il sort et il est retenu pour ameliorer le refroidissement de la couronne (18). Le clapet de fluide (50) comporte une fente (60) permettant une atomisation par jet d"huile de lubrification dirigee au-dela du clapet (50) vers les cavites adjacentes au-dessous de la couronne (18).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)