摘要:
Die vorliegende Erfindung betrifft einen Kolben (1) einer Brennkraftmaschine (2), mit einem Kolbenoberteil (3) und einem Kolbenunterteil (4), mit einem Kolbenbolzen, der im Kolbenunterteil (4) gelagert ist und der Anbindung des Kolbens (1) an eine Pleuelstange (5) der Brennkraftmaschine (2) dient, mit einem zwischen dem Kolbenoberteil (3) und dem Kolbenunterteil (4) ausgebildeten inneren Kühlraum (7) für Kühlöl zur Kühlung des Kolbens (1), mit einem im Kolbenunterteil (4) beweglich gelagerten Gleitschuh (10), der über ein Federelement (11) gegen einen Pleuelkopf (6) der Pleuelstange (5) gedrückt ist und der Überführung von Kühlöl in den inneren Kühlraum (7) dient, wobei zwischen dem Gleitschuh (10) und dem Kolbenunterteil (4) eine Führungsfläche (13) für den Gleitschuh (10) ausgebildet ist. Erfindungswesentlich ist dabei, dass die Führungsfläche (13) an einer zwischen dem Gleitschuh (10) und dem Kolbenunterteil (4) angeordneten Hülse (14) ausgebildet ist, so dass das Federelement (11) die Führungsfläche (13) umschließt.
摘要:
The lubricating oil system for a piston engine, where lubricating oil is supplied to the pistons of the engine via a crankshaft (22) and connecting rods (2) comprises a lubricating oil pump (1), a lubricating oil line (4) supplying lubricating oil from the lubricating oil pump (1) to the connecting rods (2), and a damping pipe (5) that is arranged in fluid communication with the lubricating oil line (4) and configured to damp pressure pulsations in the lubricating oil system.
摘要:
The invention relates to a length-adjustable connecting rod for a reciprocating piston engine, particularly a reciprocating piston internal combustion engine, comprising a hydraulic arrangement with which a length of the connecting rod can be adjusted, and a switching valve for controlling the inflow and outflow of a hydraulic medium into or out of the hydraulic arrangement, wherein the switching valve can be actuated electromagnetically.
摘要:
A two stroke cycle internal combustion engine machine that does not require lubricating oil mixed with its fuel, thus producing greater efficiency, higher power-to-weight ratio, cooler operating temperatures, a wider speed range, greater simplicity, and lower toxic emissions, than those of prior art, many of the improvements also transferable to four stoke cycle engines.
摘要:
The present invention relates to a combustion engine comprising at least one combustion chamber (40), which is delimited at one end by a head (41) and delimited at a second end by a piston (1), the piston being arranged on a connecting rod (3) by means of a piston pin (2), a body (1; 8; 52) with a delimiting surface (8A) that is movable in relation to the piston pin (2), and facilitates a variable volume in said combustion chamber (40), a compression spring (10), which spring (10) acts on said surface (8A) with a spring force in the direction of the combustion chamber (40), a pressure chamber (11) that can be supplied with hydraulic oil from a pressure source via a feed duct (12, 13) which pressure chamber (11) is disposed by means of hydraulic oil to be able to influence the movement of said movable delimiting surface (8A) with the aim of being able to adjust the size of the combustion chamber depending on the combustion pressure, characterized in that said pressure chamber (11) communicates with an inlet duct (13) that always facilitates replenishment of the hydraulic oil from said pressure source to the pressure chamber (11) when the pressure (P2) in the pressure chamber (11)falls below the pressure(P1) in the feed duct (13) and that said pressure chamber (11) is provided with and outlet (14) that communicates with at least one restricting device (14A) that continuously facilitates a flow of hydraulic oil out of the pressure chamber (11) if the pressure (P2) in the pressure chamber (11) exceeds the pressure (P3) in said outlet (14), so that damping of the movement of said body with said delimiting surface (8A) is obtained during operation.
摘要:
L'invention concerne un ensemble comprenant une bielle (1) et un piston (2) destiné à être mobile dans un cylindre (20) en présentant un axe longitudinal médian et en étant articulé sur la bielle (1) entre un volume sphérique du piston (2) et un volume sphérique (5) de la bielle (1) porté par un pied de bielle (1) introduit dans le piston (2), la bielle (1), portant le volume sphérique (5) à une de ses extrémités, étant traversée par un canal (9) longitudinal d'huile de lubrification débouchant à une portion du volume sphérique (5) la plus interne au piston (2), un flux d'huile, en sortie du canal (9), s'écoulant dans un intervalle (13) entre les volumes sphériques (5) en vis-à-vis du piston (2) et de la bielle (1). L'ensemble comprend des moyens d'augmentation (12) de la vitesse de circulation du flux d'huile en sortie du canal (9) portés par le piston.
摘要:
Pressurized lubricating oil is accumulated in the bearings of opposed pistons and accumulated oil is dispensed therefrom for bearing lubrication and also for cooling the undercrowns of the pistons by jets of oil emitted from the bearings.
摘要:
A rocking journal bearing for a two-stroke cycle engine includes a bearing sleeve (200) having a bearing surface (202) with a plurality of axially-spaced, eccentrically-disposed surface segments (204) and a rocking journal (220) having a plurality of axially-spaced, eccentrically-disposed journal segments (221). The rocking journal is retained for rocking oscillation on the bearing surface. Space (335) for receiving oil is provided in the rocking journal (220) and oil delivery outlets (242) acting through the journal segments deliver received oil to the bearing surfaces.