摘要:
A valve gear with a cylinder suspending mechanism of an internal combustion engine, whose entire valve gear mechanism is downsized by efficiently arranging the configuration of the valve gear including the cylinder suspending mechanism. A low-speed drive rocker arm and a high-speed drive rocker arm are disposed in front and at the rear of an intake driven rocker arm so that pistons of low-speed and high-speed cylinder portions arranged side by side in the intake driven rocker arm may be pressed by operating operation arm portions extending from the respective drive rocker arms, to thereby arrange the low-speed and high-speed cylinder portions and the low-speed and high-speed drive rocker arms around the intake driven rocker arm to gather in one place.
摘要:
The invention includes a first arm which opens and closes a valve, a second arm which is driven by a cam, a third arm which drives the first arm upon receiving a displacement of the second arm, and a variable mechanism which varies a supporting point of the second arm. The second arm includes a driving surface. The third arm includes an axis member in which a driven surface coming into surface contact with the driving surface is formed. The displacement of the second arm is transferred to the third arm with slippage occurring between the driven surface and the driving surface.
摘要:
A structure of a cylinder block includes the cylinder block having a number of cylinders; a plurality of bearing caps supporting a crankshaft along with the cylinder block; a plurality of bearing cap beams supporting the plural bearing caps; a number of cap bolts fastening the plural bearing caps and the bearing cap beam to the cylinder block; and beam bolts fixing the bearing cap beam to a skirt portion of the cylinder block; one or more baffles each of which protrudes from the bearing cap beam along a rotation path of a part of the crankshaft, and vertical walls engaging the plural bearing cap beam with the baffles in a vertical direction, so that the cylinder block is enhanced in stiffness and concurrently reduce friction caused by rotation of the crankshaft.
摘要:
There is provided a V-type engine in which banks of an engine block are offset in the same direction as the rotational direction of a crankshaft so that the banks may be displaced toward an end of a vehicle body. On the offset side, engine accessory is mounted on a side of the engine block and below the banks. The width between the end of the engine accessory to which an impact is input first among component parts of the engine block and the end of the rear bank where the engine block moved due to the impact is abutted first on a vehicle body member is set to be shorter than in a conventional engine. Therefore, the crushable zone may be increased even in a limited engine compartment.
摘要:
To provide a flow path structure of a hollow tube capable of reducing facility cost and product cost by promoting assembling operability, a rocker shaft is constituted by including a tubular member having a hollow portion and a partitioning member interposed at the hollow portion of the tubular member for partitioning the hollow portion into a plurality of flow paths along an axial direction and the partitioning member is constituted by a plate member including a partitioning portion for partitioning the hollow portion into the flow paths along the axial direction and a close contact portion brought into close contact with an inner face of the tubular member.
摘要:
Just after the start of an engine at cold start, an overlap in the opening time of an intake valve (7a) and an exhaust valve (7b) is controlled to include an intake stroke range, such that liquid fuel in an intake port (11) flows into a cylinder with the downward movement of a piston (16) without being directly exhausted to an exhaust side, so that the fuel can be combusted without fail.
摘要:
A variable valve mechanism using a non-uniform coupling in an internal combustion engine is equipped with an axis-supporting member for supporting a cam-side rotation axis in an eccentric state. In the variable valve mechanism, the axis-supporting member is driven while taking account of friction occurring in the axis-supporting member by changing the position of the axis-supporting member so as to align with the direction of a dragging torque generated between the axis-supporting member and an intermediate rotating member or between the axis-supporting member and a rotation axis member.
摘要:
In a valve-moving apparatus for a V-type multi-cylinder internal combustion engine in which plural rows of cylinders are disposed at predetermined angle relative to a crank shaft, cam shafts having cams disposed offset according to the plural rows of individual cylinders are provided, and fluid supply means provided on the cylinder head for supplying hydraulic pressure to a cooling passage, a lubricating passage, or change-over means of the valve-moving mechanism of variable valve operation condition is disposed in a space formed between the cylinder rows or in a space formed by cam shafts disposed offset along the crank shaft axial direction.
摘要:
A cylinder head assembly for ues in an internal combustion engine is provided, which includes a valve drive mechanism having a plurality of pairs of a rocker-arm shaft and a rocker arm, the rocker shafts being rotatably supported by a rocker shaft cap incooperation with journals of a cylinder head, and the rocker arms being swingable together with the rocker-arm shafts. The rocker shaft cap has a plurality of cap portions for supporting the rocker-arm shafts, disposed in parallel with each other in one direction, and corresponding in number to journal portions of the cylinder head, and pairs of beam portions respectively supporting both sides of the plurality of cap portions, and extending in parallel with each other in the one direction, wherein the cap portions and pairs of beam portions are formed to be integral with each other thereby to constitute a ladder frame structure. Oil paths are formed in the cap portions and beam portions.
摘要:
A detector is disclosed including a temperature sensitive amorphous magnetic alloy which shows a Curie point of not higher than 200.degree. C. and whose composition is represented by the formula:(M.sub.1-a Ni.sub.a).sub.100-z X.sub.zwherein M=Co or Fe; X=at least one of P, B, C and Si; 0.2.ltoreq.a.ltoreq.0.8 when M is Co, or 0.4.ltoreq.a.ltoreq.0.9 when M is Fe; and 15.ltoreq.z.ltoreq.30.