摘要:
The present invention relates to a crank-shaft (1) for an internal combustion machine having at least one main bearing journal (10) for the crankshaft (1) in a crank-housing and at least one pin bearing journal (11) for connecting a connecting rod to the crank-shaft (1). According to the invention at least one of the bearing journal surfaces (12, 13) comprises at least one recess area (14, 15) with a depth (d) of at least 1 mm.
摘要:
The invention relates to a device comprising a crankshaft (100) and least one conrod (200) having a big end (202) mounted on a crank pin (102) of the crankshaft (100). The crank pin (102) and the big end (201) of the conrod (200) comprise bearing surfaces (108, 202) which are in close contact to one another in a load-bearing area that bear the forces acting between the big end (201) of the conrod and crank pink (102) when the device is operated. According to the invention the bearing surface (108) of the crank pin (102) in its load-bearing area features a concavely curved profile in the longitudinal shaft section and the bearing surface of the big end (201) features a convex profile being in close contact with the concave profile of the crank pin (102).
摘要:
The present invention relates to a piston (10) and a piston - connecting rod assembly (1) for internal combustion engines or compressors, featuring a pinless connecting rod assembly having a joint claw (11), the joint claw (11) is formed to partly encompass an upper joining end (12) of a connecting rod (13), whereas the joint claw (11) is formed as a part of an inner section (14) of the piston (10), and whereas the inner section (14) is radially encircled by a cylindrical piston (15). According to the invention at least one bar element (16) is arranged extending between the inner section (14) and the piston skirt (15), whereas the bar element (16) divides a first open section (17) from at least one second open section (18) being arranged between the inner section (14) and the piston skirt (15).
摘要:
The invention relates to a device comprising a crankshaft (100) and least one conrod (200) having a big end (202) mounted on a crank pin (102) of the crankshaft (100). The crank pin (102) and the big end (201) of the conrod (200) comprise bearing surfaces (108, 202) which are in close contact to one another in a load-bearing area that bear the forces acting between the big end (201) of the conrod and crank pink (102) when the device is operated. According to the invention the bearing surface (108) of the crank pin (102) in its load-bearing area features a concavely curved profile in the longitudinal shaft section and the bearing surface of the big end (201) features a convex profile being in close contact with the concave profile of the crank pin (102).
摘要:
The present invention relates to a sliding bearing arrangement (1) for supporting a shaft (10) in a support element (11), comprising an inner bearing part (12) with a sliding surface (13) and comprising an outer bearing part (14) with a sliding surface (15), whereas when the shaft (10) is rotating around an axis (16), the sliding surface (13) of the inner bearing part (12) performs a sliding movement relative to the sliding surface (15) of the outer bearing part (14). According to the invention, at least one of the sliding surfaces (13, 15) features at least one recess area (17) which is extending in a circumferential direction of the surface (13, 15) over a circumferential angle (α1, α2) and which is extending over at least 50% of the axial length of the sliding surface (13, 15), and the recess area (17) is dimensioned in such a way that over the recess area (17) the clearance distance between the inner bearing part (12) and the outer bearing part (14) is increased.
摘要:
The present invention relates to a connecting rod (1) for an internal combustion engine with a big bearing portion (10) for forming a coupling arrangement with a crankshaft and with a small bearing portion (11) for forming a coupling arrangement with a piston, whereas between the big bearing portion (10) and the small bearing potion (11) is arranged a rod shaft (12). According to the invention the rod shaft (12) features a single piece construction with a first shaft beam (13) and a second shaft bean (14) arranged substantially parallel to the first shaft beam (13), whereas the shaft beams (13, 14) extend from the big bearing portion (10) to the small bearing portion (11) and feature a certain distance (15) to each other, whereas at least the small bearing portion (11) features an outer dimension (D) which is broader than the median width (WO) of the rod shaft (12) and the transition of the rod shaft (12) into the small bearing portion (11) features a concave transition portion (T1).
摘要:
The invention relates to a crankshaft drive, more preferably for internal combustion engines and compressors with connecting rod (1) and piston (2). The connecting rod (1) is linked with the piston (2) by means of positive locking without a piston pin.