CN2811572Y

CN2811572Y - Intake valve and exhaust valve co-used engine

Info

Publication number: CN2811572Y
Application number: CN 200520097499
Authority: CN
Inventors: 黄克明
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-01
Filing date: 2005-08-01
Publication date: 2006-08-30
Anticipated expiration: 2015-08-01

Abstract

The utility model discloses an inlet valve and exhaust valve co-used engine, an air inlet and an air exhaust of each cylinder of which commonly use one or a plurality of valves; the air inlet and the air exhaust port of each cylinder are communicated, and the air inlet and the air exhaust port are provided with a throttle valve. The utility model has advantages that compared with a foreign four valve engine, air inlet and air exhaust effects of the utility model have absolute advantages; although the four valve engine is added with two valves than the common two valve engine, because of positional influence of a cylinder cap, the size of each valve can be limited, and accordingly, increased magnitude of air inlet and exhaust quantity can not be very large. A single valve engine uses the air inlet and exhaust co-used valve, corresponding to the four valve engine, air inlet and exhaust area is almost twice of the four valve engine, and since increase of the air inlet quantity, combustion is completer. Accordingly, power can also increase in a corresponding manner; a discharge index of end gas can be also superior to the four valve engine; compared with the four valve engine, the engine power can increase in a corresponding manner and oil burning economical efficiency can be also increased.

Description

The shared motor of inlet and outlet door

Technical field

The utility model relates to a kind of motor, the shared motor of especially a kind of inlet and outlet door.

Background technique

The motor that current techniques is produced, have one very important problem fail to solve, be exactly the input that how to increase engine air, the speed of toxic emission makes the Economy of fuel oil obtain a lifting.When common two-air valve engine is worked, engine speed is high more, under the big more situation of supplying fuel, the input of air is but in each work cycle during than the slow-speed of revolution, this is because rotating speed is high more, piston is short more to following time by last point in the intake stroke, then the time of air inlet is short more, be subjected to the constraint of air inlet area, rotating speed is high more, and piston is in descending process simultaneously, because the space in the cylinder body can not obtain replenishing as early as possible, and the negative pressure that produces makes descent of piston need expend more energy, and in the process of exhaust, because waste gas is subjected to the influence of exhaust valve leaving area, can not discharge the firing chamber as soon as possible, directly limit the rate of climb of piston, also can expend more energy thereby make in the exhaust process.In sum, the area that increases the inlet and outlet of motor is an important topic of present engine development, promptly increase the intake and exhaust amount of motor, in the foreign technology, the method that solves this difficult problem has two now, one turbocharging technology: the design aim of this technology make exactly air (or mixed gas) before entering the firing chamber under the effect of suction booster, produce certain pressure, make motor in intake stroke, being become initiatively by passive suction, air feed combines with passive inspiratory phase, thereby the increase air inflow has improved the usefulness of motor greatly.(general diesel engine is after installing supercharging device additional, and power can improve 15% to 20%).Two increase the valve number.Cylinder 16 valves as sedan car.24 Valves Technology of six cylinder engine are produced with regard to being based on the area consideration that increases the inlet and outlet mouth.Effect is also fine, as for improving many power per liter, remains reference.

Summary of the invention

The purpose of this utility model is to provide a kind of inlet and outlet door shared motor, and this motor effect is fine, can improve power.

The technical solution of the utility model is: the shared motor of a kind of inlet and outlet door, and the shared one or more valves of the every cylinder inlet and outlet of this motor, the air inlet and the relief opening of every cylinder communicate, and respectively are provided with a closure on suction port and relief opening.

Advantage of the present utility model is: advance, the external four-valve engine of effect contrast of exhaust has absolute advantage, though this is because four-valve engine has increased by two valves than common two-air valve engine, but be subjected to the influence of cylinder cap position, the size of each valve is also restricted, so advance, the increasing degree of air displacement can be very not big because of this, single air valve engine then advances, the exhaust shared air valve, relative four-valve engine, advance, the area of exhaust is almost its twice, because air inflow increases, it is more complete to burn, so power also can correspondingly improve, the exhaust index of tail gas also can be better than four-valve engine, and engine power is than the also corresponding improve of four-valve engine, and the Economy of fuel oil is also self-evident.

Description of drawings

Fig. 1 is the shared engine structure schematic representation of the utility model valve.

Embodiment

A kind ofly advance, the shared motor of exhaust valve, the shared one or more valves 1 of every cylinder intake and exhaust, the air inlet and the relief opening of every cylinder communicate, just on suction port and relief opening, respectively design a closure 2 in the similar gasoline engine carburetor, 3 structure, this structure can substantially effectively cut off into, the air exhaust air circulation, because it is not the work of directly participating in motor, seal requirement to it can not be very strict, because work cycle of motor (720 ° on crankshaft rotating two circles), closure 2,3 with valve 1 all be a folding once, so can a shared camshaft, in the development of motor, can be general with former cylinder body, as long as cylinder cap and wheel shaft are improved, if be used with suction booster, then effect can be more obvious.

During engine operation: intake stroke: valve 1 is opened, and air inlet shutter 2 is also opened, exhaust throttle 3 is closed, and piston 4 to lower dead center, produces negative pressure, with air (or mixed gas) inspiration firing chamber by last.Compression stroke, valve 1 is closed, and air inlet shutter 2 is closed, and exhaust throttle 3 is opened, piston stroking upward, pressurized air (or mixed gas).Expansion space stroke, valve-closing, air inlet shutter is closed, and exhaust throttle is opened, spark plug 5 igniting or oil nozzle oil spouts, burning back gas fiercely expands, and produces pressure, forces descent of piston, rotates through connecting rod promotion bent axle and produces power.Exhaust stroke, valve 1 is opened, and air inlet shutter 2 has been closed, and exhaust throttle 3 is opened in advance, and piston 4 is up, and the smooth and easy discharge of waste gas is finished a work cycle, and so forth.

Claims

1, the shared motor of a kind of inlet and outlet door is characterized in that: the shared one or more valves of the every cylinder inlet and outlet of this motor (1), the air inlet and the relief opening of every cylinder communicate, and respectively are provided with a closure (2,3) on suction port and relief opening.