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公开(公告)号：US2196422A
公开(公告)日：1940-04-09
申请号：US24247838
申请日：1938-11-26
发明人： GUSTAV MEYER
CPC分类号： F16C3/14 , F16C3/08 , Y10T74/2185
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公开(公告)号：US2175156A
公开(公告)日：1939-10-03
申请号：US14017937
申请日：1937-05-01
申请人： EDNA MUMMERT
发明人： EDNA MUMMERT
IPC分类号： F16C3/08
CPC分类号： F16C3/08 , B21K1/08 , Y10T29/17 , Y10T74/2174
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公开(公告)号：US2020406A
公开(公告)日：1935-11-12
申请号：US65492533
申请日：1933-02-02
申请人： FORD MOTOR CO
发明人： HENRY FORD
IPC分类号： F16C3/08
CPC分类号： F16C3/08 , F16C2220/02 , Y10T74/2174 , Y10T74/2183
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公开(公告)号：US11905992B2
公开(公告)日：2024-02-20
申请号：US17114961
申请日：2020-12-08
CPC分类号： F16C3/06 , C21D9/30 , C22C38/00 , C21D1/18 , C21D1/58 , C21D2211/005 , C21D2211/008 , F16C3/08 , F16C2202/04 , F16C2204/62 , F16C2204/64 , F16C2223/10 , Y10T29/49286
摘要： A method for manufacturing a crankshaft for an internal combustion engine with a plurality of journals having a hardened case with a first microstructure. The crankshaft is comprised of a steel comprising between about 0.3 wt % and 0.77 wt % Carbon. The first microstructure of the hardened case of the journals comprises between about 15% and 30% ferrite and a balance of martensite and the resultant subsurface residual stress between 310 MPa and 620 MPa.
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公开(公告)号：US11319609B2
公开(公告)日：2022-05-03
申请号：US16530696
申请日：2019-08-02
发明人： Sung Hwan Kim , Chan Woo Kim
摘要： Steel for a crankshaft includes 0.37 to 0.42 wt % of carbon (C), 0.55 to 0.70 wt % of silicon (Si), 1.45 to 1.65 wt % of manganese (Mn), 0.025 wt % or less (excluding 0 wt %) of phosphorus (P), 0.020 to 0.035 wt % of sulfur (S), 0.15 to 0.30 wt % of chromium (Cr), 0.035 to 0.055% of vanadium (V), and the remainder of Fe and other inevitable impurities. The steel for a crankshaft has strength that is maintained high even when reducing the amount of vanadium.
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公开(公告)号：US20210404512A1
公开(公告)日：2021-12-30
申请号：US17281488
申请日：2019-09-05
IPC分类号： F16C3/08
摘要： The invention relates to a crankshaft (1) for a reciprocating piston internal combustion engine having at least two main bearings (2) a crank pin (3). Crankshaft flanges (4) are arranged between each of the main bearings and the crank pin and connect the main bearings to the crank pin. The crankshaft has at least one ring gear (5) spaced apart axially from a main bearing for a drive of a chain drive. A crankshaft surface between the main bearing and the first ring gear has an averaged roughness depth R z of less than 3 micrometres. Due to the configuration of the crankshaft according to the invention for a reciprocating piston internal combustion engine, higher torsional moments can be transmitted or the crankshaft can be designed to be lighter in the area having the higher surface quality.
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公开(公告)号：US20210040984A1
公开(公告)日：2021-02-11
申请号：US16965128
申请日：2019-01-17
IPC分类号： F16C3/08
摘要： A crankshaft includes a plurality of journals, a plurality of pins, and a plurality of crank arms. The journals are coaxially disposed with the rotational center of the crankshaft. The pins are decentered with respect to the journals. Each of the crank arms is disposed between one journal and one pin to join the one journal with the one pin. One or more of the crank arms integrally include a counterweight. The counterweight includes two side surfaces. The side surfaces are each provided with a quenched layer.
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公开(公告)号：US10883154B2
公开(公告)日：2021-01-05
申请号：US16056990
申请日：2018-08-07
摘要： A method for manufacturing a crankshaft for an internal combustion engine with a plurality of journals having a hardened case with a first microstructure. The crankshaft is comprised of a steel comprising between about 0.3 wt % and 0.77 wt % Carbon. The first microstructure of the hardened case of the journals comprises between about 15% and 30% ferrite and a balance of martensite and the resultant subsurface residual stress between 310 MPa and 620 MPa.
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公开(公告)号：US20200370593A1
公开(公告)日：2020-11-26
申请号：US16965208
申请日：2019-01-17
IPC分类号： F16C3/08
摘要： A crankshaft includes a plurality of journals, a plurality of pins, and a plurality of crank arms. The journals are coaxially disposed with the rotational center of the crankshaft. The pins are decentered with respect to the journals. Each of the crank arms is disposed between one journal and one pin to join the one journal with the one pin. One or more of the crank arms integrally include a counterweight. The counterweight includes two side surfaces. An added layer of a material different from that of a crankshaft body is provided on each of side surfaces of the counterweight. When the Young's modulus of the added layer is E and the Young's modulus of the material of the crankshaft body is E0, E/E0 is 0.2 to 0.4.
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公开(公告)号：US20200096037A1
公开(公告)日：2020-03-26
申请号：US16617789
申请日：2018-05-29
申请人： Scania CV AB
发明人： Per LARSEN
摘要： A crankshaft (4) with a first central axis (A), has at least two main bearing journals (12), through which the first central axis (A) extends. At least one crankshaft web (10) is arranged between the main bearing journals (12), wherein the at least one crankshaft web (10) comprises two crank discs (14) connected with each other via a crankpin (16) with a second central axis (B). At least one crank disc (14) has a recess (26) with a planar bottom surface (28), wherein the recess (26) is adapted in the at least one crank disc (14) in such a way that the second central axis (B) of the crankpin (16) cuts the planar bottom surface (28). That planar bottom surface (28) is oriented at a right angle in relation to the direction of the second central axis (B) of the crankpin (16). A bore (30) with a third central axis (C) extend through the planar bottom surface (28) of the recess (26), through the at least one crank disc (14), and into the at least one crankpin (16). Also, a combustion engine (2), a vehicle (1) and a method for manufacture of a crankshaft (4) are disclosed.
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