CN104879184A - Flow area adjusting mechanism adopting valve body capable of moving up and down - Google Patents

Abstract

A flow area adjusting mechanism adopting a valve body capable of moving up and down belongs to the technical field of mechanical design, and comprises control cavities (a first control cavity and a second control cavity), the valve body, a filling body, a fixing body, penetration pipes (a first penetration pipe and a second penetration pipe), a spring, a rotating block, a connecting plate, a rotating shaft and a first connecting pipe, wherein the lower section of the valve body is conical; four ribs are arranged on the middle section of the valve body; an external thread is formed on the upper section of the valve body; one end of the first connecting pipe is communicated with the first penetration pipe; the other end of the first connecting pipe is communicated with the exhaust pipe of an engine; one end of a second connecting pipe is communicated with the interior of the second control cavity; the other end of the second connecting pipe is communicated with the exhaust pipe of a turbine. When the pressure difference between two ends of the rotating block is relatively high, the valve body moves upwards to separate a main oil passage from an oil return pipe and ensure that the pressure of engine oil in the main oil passage is increased; when the pressure difference between two ends of the rotating block is relatively low, the valve body moves downwards to communicate the main oil passage with the oil return pipe and ensure that the pressure of the engine oil in the main oil passage is lowered. The flow area adjusting mechanism is reasonable in design, simple in structure, and suitable for optimal design of a mechanical lubrication system.

Description

Valve body moves up and down type circulation area controlling mechanism

Technical field

What the present invention relates to is a kind of lubrication regulating system of technical field of mechanical design, and particularly a kind of valve body being applicable to supercharged engine moves up and down type circulation area controlling mechanism.

Background technique

During engine operation, rotating speed is very high, and position coordinates closely between piston with casing wall, between connecting rod bearing shell with bent axle etc., if these matching parts can not get sufficient lubrication, will produce dry friction.The heat that dry friction produces at short notice is enough to make metal molten, causes the damage of parts even stuck (piston scraping, bent axle axis tile etc.), therefore must give good lubrication to the matching part in motor.After lubricant oil flows to matching part, one deck oil film can be formed at friction surface.In order to ensure that lubricant oil can arrive matching surface smoothly, engine lubricating oil must have certain pressure.Cylinder and piston, piston ring and the annular groove of motor, between valve and valve seat, all there is certain interval, can not clamping stagnation when moving between each counterpart of such guarantee, but these gaps easily cause again the mixed gas in firing chamber to scurry into crankcase, result not only accelerates the rotten of lubricant oil, also can reduce the output power of cylinder pressure and motor.Lubricant oil can form oil film in the gap of each counterpart, and these oil films can play seal action, ensure that the sealing of cylinder.The rust preventing agent contained in lubricant oil etc. have the multipurpose additive of rustless property, and these additives form the fine and close adsorption layer of marshalling in metal surface, effectively resisted the intrusion of various corrosive deposit.When larger change occurs for engine start, acceleration or load, the parts such as the large small end of wrist pin, connecting rod and crankshaft bearing liner all will bear the acute variation of vibration, and the suitable lubricant oil of viscosity can absorption portion impact energy, plays the effect of buffering.The realization of these effects of machine oil, all relevant with the charge oil pressure of main oil gallery.Ideally lower at speed operation main oil gallery engine oil pressure, higher at high-speed working condition main oil gallery engine oil pressure, the running of motor can be ensured like this, can mechanical loss be reduced again.

Through finding the retrieval of prior art document, Chinese Patent Application No. 201110044577.9, patent name: oil pressure control apparatus, this patented technology provides a kind of device for adjusting oil pressure, can realize the adjustment of engine oil pressure preferably; But it is stage to the adjustment of engine oil pressure, the continuously adjustabe of engine oil pressure can not be realized.

Summary of the invention

The present invention is directed to above-mentioned the deficiencies in the prior art, provide a kind of valve body and move up and down type circulation area controlling mechanism, make main oil gallery engine oil pressure can self-control, take into account the high and low rotating speed operating mode of motor preferably, and structure is simple, does not need special control mechanism.

The present invention is achieved through the following technical solutions, the present invention includes compressor air inlet machine pipe, gas compressor, engine air inlet tube, intake valve, exhaust valve, engine exhaust pipe, turbine, turbine steam outlet pipe, cylinder, piston, connecting rod, bent axle, oil pump, oil pump gear, chain, oil sump, fuel sucking pipe, main oil gallery, divide oil duct, catalysis bag, first control chamber, second control chamber, nut, return tube, valve body, obturator, fixed body, first runs through pipe, second runs through pipe, spring, rotating block, swivel plate, connecting plate, running shaft, first connecting tube, second connecting tube, the air inlet/outlet of gas compressor respectively with the air outlet of compressor air inlet machine pipe, the suction port of engine air inlet tube is connected, and the air outlet of engine air inlet tube is connected with engine inlets, the air inlet/outlet of turbine respectively with the air outlet of engine exhaust pipe, the suction port of turbine steam outlet pipe is connected, and catalysis bag is arranged on turbine steam outlet pipe, and the suction port of engine exhaust pipe is connected with engine exhaust road, intake valve, exhaust valve, piston is installed in cylinder, and the bottom of piston is connected with bent axle by connecting rod, and oil pump gear is arranged in oil pump, and oil pump gear is connected with bent axle by chain, the oil inlet and outlet of oil pump respectively with the oil outlet of fuel sucking pipe, the filler opening of main oil gallery is connected, the filler opening of fuel sucking pipe is arranged in oil sump, the filler opening of oil duct is divided to be connected with main oil gallery, divide the oil outlet of oil duct to be connected with the lubrication system of motor, the hypomere of valve body is coniform, and the stage casing of valve body is with four ribs, the epimere of valve body is with outside thread, nut is inner with internal thread, and the hypomere of valve body and obturator are arranged in the first control chamber, the sidewall of the first control chamber respectively with main oil gallery, return tube is connected, the upper-end surface of nut and the second control chamber is consolidated, and the stage casing of valve body is arranged in the second control chamber, and epimere and the nut of valve body link together, fixed body to be arranged in the second control chamber and to be consolidated with the internal face of the second control chamber, and first runs through pipe, second runs through pipe is arranged on fixed body, first cross sectional area running through pipe is less than the cross sectional area that second runs through pipe, rotating block is arranged in second and runs through in pipe, one end and the rotating block of swivel plate are consolidated, the other end of swivel plate stretches into first and runs through in pipe, running shaft is arranged on the axis of the second control chamber, swivel plate, connecting plate, running shaft is consolidated, the stage casing of valve body is passed in running shaft, interior of rotating shaft is with four cavitys, four ribs in valve body stage casing are arranged in four cavitys of running shaft, the top wall that rotating block runs through pipe by elastic member and second is connected, one end and first of first connecting tube is run through pipe and is connected, the other end of the first connecting tube is connected with engine exhaust pipe, one end of second connecting tube is connected with the internal cavity of the second control chamber, and the other end of the second connecting tube is connected with turbine exhaust pipe.

Further, in the present invention, the cross section of the first control chamber, the second control chamber internal cavity is circular, and first to run through the cross section that pipe, second runs through pipe be circular.

Compared with prior art, the present invention has following beneficial effect and is: the present invention is reasonable in design, and structure is simple; Main oil gallery engine oil pressure can carry out continuously adjustabe according to Stress control, and namely main oil gallery engine oil pressure can carry out continuously adjustabe according to the different rotating speed of motor and load, thus takes into account the various operating conditionss of motor.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is the structural representation of A-A section in Fig. 1;

Fig. 4 is the cross section structure schematic diagram of the second control chamber;

Fig. 5 is the structural representation of B-B section in Fig. 4;

Fig. 6 is the structural representation of C-C section in Fig. 4;

Wherein: 1, compressor air inlet machine pipe, 2, gas compressor, 3, engine air inlet tube, 4, intake valve, 5, exhaust valve, 6, engine exhaust pipe, 7, turbine, 8, turbine steam outlet pipe, 9, cylinder, 10, piston, 11, connecting rod, 12, bent axle, 13, oil pump, 14, oil pump gear, 15, chain, 16, oil sump, 17, fuel sucking pipe, 18, main oil gallery, 19, divide oil duct, 20, catalysis bag, 21, first control chamber, 22, second control chamber, 23, nut, 24, return tube, 25, valve body, 26, obturator, 27, fixed body, 28, first runs through pipe, 29, second runs through pipe, 30, spring, 31, rotating block, 32, swivel plate, 33, connecting plate, 34, running shaft, 35, first connecting tube, 36, second connecting tube.

Embodiment

Elaborate to embodiments of the invention below in conjunction with accompanying drawing, the present embodiment, premised on technical solution of the present invention, give detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.

embodiment

As shown in Figures 1 to 6, the present invention includes compressor air inlet machine pipe 1, gas compressor 2, engine air inlet tube 3, intake valve 4, exhaust valve 5, engine exhaust pipe 6, turbine 7, turbine steam outlet pipe 8, cylinder 9, piston 10, connecting rod 11, bent axle 12, oil pump 13, oil pump gear 14, chain 15, oil sump 16, fuel sucking pipe 17, main oil gallery 18, divide oil duct 19, catalysis bag 20, first control chamber 21, second control chamber 22, nut 23, return tube 24, valve body 25, obturator 26, fixed body 27, first runs through pipe 28, second runs through pipe 29, spring 30, rotating block 31, swivel plate 32, connecting plate 33, running shaft 34, first connecting tube 35, second connecting tube 36, the air inlet/outlet of gas compressor 2 respectively with the air outlet of compressor air inlet machine pipe 1, the suction port of engine air inlet tube 3 is connected, and the air outlet of engine air inlet tube 3 is connected with engine inlets, the air inlet/outlet of turbine 7 respectively with the air outlet of engine exhaust pipe 6, the suction port of turbine steam outlet pipe 8 is connected, and catalysis bag 20 is arranged on turbine steam outlet pipe 8, and the suction port of engine exhaust pipe 6 is connected with engine exhaust road, intake valve 4, exhaust valve 5, piston 10 is installed in cylinder 9, the bottom of piston 10 is connected with bent axle 12 by connecting rod 11, oil pump gear 14 is arranged in oil pump 13, and oil pump gear 14 is connected with bent axle 12 by chain 15, the oil inlet and outlet of oil pump 13 respectively with the oil outlet of fuel sucking pipe 17, the filler opening of main oil gallery 18 is connected, the filler opening of fuel sucking pipe 17 is arranged in oil sump 16, the filler opening of oil duct 19 is divided to be connected with main oil gallery 18, divide the oil outlet of oil duct 19 to be connected with the lubrication system of motor, the hypomere of valve body 25 is coniform, and the stage casing of valve body 25 is with four ribs, the epimere of valve body 25 is with outside thread, nut 23 inside is with internal thread, and the hypomere of valve body 25 and obturator 26 are arranged in the first control chamber 21, the sidewall of the first control chamber 21 respectively with main oil gallery 18, return tube 24 is connected, the upper-end surface of nut 23 and the second control chamber 22 is consolidated, the stage casing of valve body 25 is arranged in the second control chamber 22, epimere and the nut 23 of valve body 25 link together, fixed body 27 to be arranged in the second control chamber 22 and to be consolidated with the internal face of the second control chamber 22, and first runs through pipe 28, second runs through pipe 29 is arranged on fixed body 27, first cross sectional area running through pipe 28 is less than the cross sectional area that second runs through pipe 29, rotating block 31 is arranged in second and runs through in pipe 29, one end and the rotating block 31 of swivel plate 32 are consolidated, the other end of swivel plate 32 stretches into first and runs through in pipe 28, running shaft 34 is arranged on the axis of the second control chamber 22, swivel plate 32, connecting plate 33, running shaft 34 is consolidated, the stage casing of valve body 25 is passed in running shaft 34, running shaft 34 inside is with four cavitys, four ribs in valve body 25 stage casing are arranged in four cavitys of running shaft 34, the top wall that rotating block 31 runs through pipe 29 by elastic member 30 and second is connected, one end and first of first connecting tube 35 is run through pipe 28 and is connected, the other end of the first connecting tube 35 is connected with engine exhaust pipe 6, one end of second connecting tube 36 is connected with the internal cavity of the second control chamber 22, and the other end of the second connecting tube 36 is connected with turbine exhaust pipe 8, the cross section of the first control chamber 21, second control chamber 22 internal cavity is circular, and first to run through the cross section that pipe 28, second runs through pipe 29 be circular.

In working procedure of the present invention, valve body 25 can by running shaft 34 with moving up and down.When pressure reduction between engine exhaust pipe 6, turbine exhaust pipe 7 is larger, the pressure reduction on rotating block 31 both sides is also larger, rotating block 31, swivel plate 32, connecting plate 33, running shaft 34 turn clockwise and the spring 30 that stretches together, and be with moving valve 25 to move upward, aditus laryngis between valve body 25 hypomere and obturator 26 diminishes, thus the circulation area between main oil gallery 18 and return tube 24 is diminished, main oil gallery 18 inner engine oil pressure is higher; When pressure reduction between engine exhaust pipe 6, turbine exhaust pipe 7 is less, the pressure reduction on rotating block 31 both sides is also less, under the stretching action of spring 30, rotating block 31, swivel plate 32, connecting plate 33, running shaft 34 are rotated counterclockwise together, and be with moving valve 25 to move downward, aditus laryngis between valve body 25 hypomere and obturator 26 becomes large, thus making the circulation area between main oil gallery 18 and return tube 24 become large, main oil gallery 18 inner engine oil pressure is lower.

Claims (2)

1. a valve body moves up and down type circulation area controlling mechanism, comprise compressor air inlet machine pipe (1), gas compressor (2), engine air inlet tube (3), intake valve (4), exhaust valve (5), engine exhaust pipe (6), turbine (7), turbine steam outlet pipe (8), cylinder (9), piston (10), connecting rod (11), bent axle (12), oil pump (13), oil pump gear (14), chain (15), oil sump (16), fuel sucking pipe (17), main oil gallery (18), divide oil duct (19), catalysis bag (20), the air inlet/outlet of gas compressor (2) respectively with the air outlet of compressor air inlet machine pipe (1), the suction port of engine air inlet tube (3) is connected, the air outlet of engine air inlet tube (3) is connected with engine inlets, the air inlet/outlet of turbine (7) respectively with the air outlet of engine exhaust pipe (6), the suction port of turbine steam outlet pipe (8) is connected, catalysis bag (20) is arranged on turbine steam outlet pipe (8), the suction port of engine exhaust pipe (6) is connected with engine exhaust road, intake valve (4), exhaust valve (5), piston (10) is installed in cylinder (9), the bottom of piston (10) is connected with bent axle (12) by connecting rod (11), oil pump gear (14) is arranged in oil pump (13), oil pump gear (14) is connected with bent axle (12) by chain (15), the oil inlet and outlet of oil pump (13) respectively with the oil outlet of fuel sucking pipe (17), the filler opening of main oil gallery (18) is connected, the filler opening of fuel sucking pipe (17) is arranged in oil sump (16), the filler opening of oil duct (19) is divided to be connected with main oil gallery (18), the oil outlet of oil duct (19) is divided to be connected with the lubrication system of motor, it is characterized in that, also comprise the first control chamber (21), second control chamber (22), nut (23), return tube (24), valve body (25), obturator (26), fixed body (27), first runs through pipe (28), second runs through pipe (29), spring (30), rotating block (31), swivel plate (32), connecting plate (33), running shaft (34), first connecting tube (35), second connecting tube (36), the hypomere of valve body (25) is coniform, the stage casing of valve body (25) is with four ribs, the epimere of valve body (25) is with outside thread, nut (23) is inner with internal thread, the hypomere of valve body (25) and obturator (26) are arranged in the first control chamber (21), the sidewall of the first control chamber (21) respectively with main oil gallery (18), return tube (24) is connected, nut (23) is consolidated with the upper-end surface of the second control chamber (22), the stage casing of valve body (25) is arranged in the second control chamber (22), epimere and the nut (23) of valve body (25) link together, fixed body (27) to be arranged in the second control chamber (22) and to be consolidated with the internal face of the second control chamber (22), first runs through pipe (28), second runs through pipe (29) is arranged on fixed body (27), first cross sectional area running through pipe (28) is less than the cross sectional area that second runs through pipe (29), rotating block (31) is arranged in second and runs through in pipe (29), one end and the rotating block (31) of swivel plate (32) are consolidated, the other end of swivel plate (32) stretches into first and runs through in pipe (28), running shaft (34) is arranged on the axis of the second control chamber (22), swivel plate (32), connecting plate (33), running shaft (34) is consolidated, the stage casing of valve body (25) is passed in running shaft (34), running shaft (34) is inner with four cavitys, four ribs in valve body (25) stage casing are arranged in four cavitys of running shaft (34), rotating block (31) runs through the top wall of managing (29) by elastic member (30) and second and is connected, one end and first of first connecting tube (35) is run through and is managed (28) and be connected, the other end of the first connecting tube (35) is connected with engine exhaust pipe (6), one end of second connecting tube (36) is connected with the internal cavity of the second control chamber (22), the other end of the second connecting tube (36) is connected with turbine exhaust pipe (8).

2. valve body according to claim 1 moves up and down type circulation area controlling mechanism, the cross section that it is characterized in that the first control chamber (21), the second control chamber (22) internal cavity is for circular, and first to run through the cross section that pipe (28), second runs through pipe (29) be circular.