Pressure boosting and maintaining device for engine lubricating system
A technology of lubricating system and pressure maintaining device, which is applied to the sealing device of the engine, engine components, machines/engines, etc. It can solve the problems of low lubricating oil oil pressure, crank pin sintering, crankshaft locking, etc., to reduce power loss, High mechanical strength and wear resistance, the effect of eliminating crankshaft lock
Inactive Publication Date: 2016-06-22
JIANGSU LINHAI POWER MACHINERY GROUP
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Problems solved by technology
In the prior art, the crankshaft assembly is not equipped with a lubricating system pressurization and pressure maintaining device, that is, the crankshaft bearing oil seal is not installed. When the engine oil circulates, the engine oil leaks from the crankshaft bearing, not only the lubricating oil pressure is low, but also the pressure cannot be maintained. , can not fully and effectively lubricate the key parts such as the transmission part, crankshaft assembly, piston cylinder and crank connecting rod, which will easily cause serious consequences such as crankshaft locking, crank pin sintering, and cylinder scuffing
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[0023] Such as Figure 1A , Figure 1B , figure 2 , image 3 Shown, a kind of engine lubricating system supercharging and maintaining pressure device is made up of crankshaft 3, bearing oil seal 1, crankshaft bearing 2, crankshaft oil seal 31 and main lubricating oil passage 32 arranged in crankcase left casing 4. The bearing oil seal 1 is connected with the crankshaft bearing 2 and the left crankcase body 4 in sequence with an interference fit, and the crankshaft oil seal 31 is connected with the crankshaft 3 through an interference fit. on the side.
[0024] The bearing oil seal 1 is composed of a lip 11 and a frame 12 in an integrated structure, and the lip 11 and the frame 12 are respectively fitted and connected with the bearing inner ring 21 and the bearing sealing groove 22 with an interference fit.
[0025] The materials used for the lip 11 and the frame 12 are fluorine rubber and 08F steel respectively.
[0026] The interference between the lip 11 and the bearing...
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The invention discloses a pressure boosting and maintaining device for an engine lubricating system. The pressure boosting and maintaining device comprises a crankshaft (3), a bearing oil seal (1), a crankcase bearing (2), a crankshaft oil seal (31) and a main oil gallery (32), which are arranged in a left crankshaft body (4). The bearing oil seal (1) is connected with the crankcase bearing (2) and the left crankshaft body (4) in an interference fit manner. The crankshaft oil seal (31) is connected with the crankshaft (3) in an interference fit manner. The bearing oil seal (1) and the crankshaft oil seal (31) are correspondingly arranged on two side surfaces of the main oil gallery (32). The pressure boosting and maintaining device has the advantages that the structural design is reasonable, the cost is low, the pressure of lubricating oil can be improved from 0.2 MPa to 2.5 MPa, the pressure is maintained to be 1.5-2 MPa, the lubricating and radiating effects of the variable speed part of an engine, a crankshaft assembly and a piston cylinder are effectively improved, and the operation reliability and the operation stability of the engine are ensured.
Description
technical field [0001] The invention relates to the technical field of vehicle equipment, in particular to a boosting and pressure maintaining device for an engine lubricating system. Background technique [0002] The lubrication system is like the blood of a human being to an engine, and its importance is self-evident. Any engine transmission part, crankshaft assembly and piston cylinder will inevitably generate friction and heat when it is running, and the main function of oil circulation is to reduce the friction loss and take away of the transmission part, crankshaft assembly and piston cylinder Excessive heat allows the transmission part, crankshaft assembly and piston cylinder to work stably under a suitable lubrication condition and temperature. In particular, the crank connecting rod part has always been the soul of all engines. It is because of the crank connecting rod that the reciprocating piston motion is converted into usable rotary motion. Therefore, the lubr...
Claims
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IPC IPC(8): F02F11/00F16C33/78
CPCF02F11/007F16C33/7806F16C33/7816
Inventor 张平许振王峰沈鹏
Owner JIANGSU LINHAI POWER MACHINERY GROUP