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US 6,293,247 B1Granted
Linkage device of internal combustion engine
AssigneeNissan Motor Co., Ltd.
InventorsJunya Sasaki, Shunichi Mitsuishi
Life of this patent
Estimating the term…
Abstract
A linkage device of a V-type internal combustion engine rotates a pair of drive shafts for changing openings of swirl control valves. The linkage device receives reciprocating motion from an actuator through a rod. A center lever connected to the rod changes the reciprocating motion to swing motion and transfers the swing motion to right and left links. The right and left links are connected to the drive shaft through right and left levers, respectively. The right and left links and the right and left levers change the swing motion to rotational motion and apply the rotational motion to the drive shafts.
Claims13
A linkage device of an internal combustion engine comprising:
- a reciprocating member;
- a connecting member comprising first and second supporting portions, the first supporting portion being rotatably connected to said reciprocating member;
- a supporting member rotatably supporting said connecting member so that the first and second supporting portions are swingable around said supporting member;
- first and second extending members rotatably connected to the second supporting portion of said connecting member, said second extending member extending from the second supporting portion toward an opposite direction of an extending direction of said first extending member;
- first and second lever members rotatably connected to said first and second extending members, respectively;
- and
- first and second rotation shafts fixed to said first and second lever members, respectively, said first and second rotation shafts being synchronously rotated when said reciprocating member is reciprocated,
- wherein the engine employing the linkage device is a V-type engine comprising first and second banks, and
- wherein first swirl control valves are fixed to said first rotation shaft and second swirl control valves are fixed to said second rotation shaft.
6 more elements
A linkage device of a V-type internal combustion engine comprising:
- a reciprocating rod;
- a center lever having first and second supporting portions and a fulcrum portion, the first supporting portion being rotatably connected with said reciprocating rod, the fulcrum portion being rotatably supported to a portion of the engine so that the first and second supporting portions swing around the fulcrum portion;
- a first link having input and output portions, the first link input portion being rotatably connected to the second supporting portion of said center lever;
- a second link having input and output portions, the second link input portion being rotatably connected to the second supporting portion of said center lever;
- a first drive shaft rotatably disposed in first intake passages connected to a first bank of the V-type engine;
- a second drive shaft rotatably disposed in second intake passages connected to a second bank of the V-type engine;
- a first lever fixed to said first drive shaft, said first lever having a connecting portion rotatably connected to the first link output portion, the first lever connecting being swung on said first drive shaft according to reciprocating motion of said reciprocating rod so that said drive shaft is rotated;
- and
- a second lever fixed to said second drive shaft, said second lever having a connecting portion rotatably connected to the second link output portion, said first lever being swung on said second drive shaft according to reciprocating motion of said reciprocating rod so that said second drive shaft is rotated.
6 more elements
A linkage device of an internal combustion engine comprising:
- a reciprocating member;
- a connecting member comprising first and second supporting portions, the first supporting portion being rotatably connected to said reciprocating member;
- a supporting member rotatably supporting said connecting member so that the first and second supporting portions are swingable around said supporting member;
- first and second extending members rotatably connected to the second supporting portion of said connecting member, said second extending member extending from the second supporting portion toward an opposite direction of an extending direction of said first extending member;
- first and second lever members rotatably connected to said first and second extending members, respectively;
- and
- first and second rotation shafts fixed to said first and second lever members, respectively, said first and second rotation shafts being synchronously rotated in opposite directions according to a reciprocating motion of said reciprocating member when said reciprocating member is reciprocated.
4 more elements
Dependencies are inferred from the claim text.