CN2318415Y - Slide-rod high-and-low speed fuel spray nozzle for engine - Google Patents

Abstract

The utility model relates to a slide rod high-low speed oil injection nozzle for engines, which is an improvement on the basis on the prior art, and the utility model is characterized in that the oil injection nozzle is through-hole-shaped. An oil injection slide rod is arranged in the through hole of the oil injection nozzle, and the lower end of the oil injection slide rod is drilled with two rows of high-low speed injection holes in radial direction so as to communicate with a central oil duct. A spring is arranged under a big end disc of the oil injection slide rod and is sheathed together with the oil injection slide rod, and the oil injection slide rod can be lift up from the oil injection through hole with the elastic force of the spring. The high-low speed injection holes at the lower end of the oil injection slide rod are buried into an oil head middle hole for sealing and cutting off the oil duct, so the oil injection slide rod can prepare for the next oil running injection of the engine. Therefore, the utility model accomplishes the oil injection and oil cutting off work of the slide rod high-low speed oil injection nozzle. The utility model has novel design, advanced structure and good practicability, so the utility model can save oil, reduce pollution, eliminate the oil return system of the existing oil injection nozzle and extend the service life of an oil injection mechanism.

Description

The motor high low speed oil injecting nozzle of sliding rod type

The utility model belongs to engine oil mechanism technical scope, relates to a kind of motor oil injecting nozzle.

The motor oil injecting nozzle of prior art, usually all be to use the nozzle tip of three step holes to be equipped with the needle-valve of three step axles, under condition of high voltage, utilize the land of spindle end face step to seal and open oil spout, the switch friction of in the use because several thousand ground of per minute high frequency high pressure is sprayed, make the sealing strip and the needle-valve conductor of needle-valve end face be subjected to heavy wear very soon, be not closed completely when having caused the oil injecting nozzle sealing, it is bad to atomize, produced leakage of oil, therefore gas leak phenomenon makes motor over-emitting black exhaust occur, many oil consumptions, horsepower is not enough, power descends, the fault altar is many, and severe contamination environment.Centuries is not situated between well determines.The oil injecting nozzle of prior art, not only unreliable in the use, the life-span is short, and on making complex process, yield rate is low, costs an arm and a leg.

Task of the present utility model provides a kind of long service life, sealing effect is good, low-pressure oil atomizing degree height, burning is thorough, fuel saving, pollution abatement, improve engine horsepower, easy to use, with low cost, the porous height ski-running lever type engine oil injecting nozzle that high and low two-speed is arranged is to overcome the above-mentioned shortcoming that prior art exists.

The utility model is to improve realization on the basis of existing technology, it by oil injecting nozzle, oil spout slide bar, spring, end cap nut, adjusting threaded spindle, tightening nut, be equipped with jack panel and form.Oil injecting nozzle is shape of through holes, dress oil spout slide bar in the oil injecting nozzle through hole, the lower end of oil spout slide bar radially is drilled with the high low speed spray orifice of two rows and communicates with central oil passage, the big end plate of oil spout slide bar divides into spring and the oil spout jack rod sleeve is fitted together, rely on the elastic force of spring that the oil spout slide bar is upwards mentioned in the oil injecting nozzle through hole, make the high low speed spray orifice of two rows of oil spout slide bar lower end, imbed and seal and cut off oil circuit in the nozzle tip mesopore, the fuel feeding oil spout is got ready when giving engine running.The lifting height of adjusting threaded spindle restriction oil spout slide bar is tightened tightening nut, is got jack panel ready, and adjusting threaded spindle is tightened up.Motor is released first row's low speed spray orifice when little throttle fuel feeding, carries out little spray, and motor is low-speed running; When motor large throttle fuel feeding, second row's low speed spray orifice is released and is participated in injection, has formed the little spray of colony, and motor has obtained a large amount of fuel and has been high-speed running.Thereby realized the task of the high low speed oil injecting nozzle of sliding rod type porous.

Fig. 1 is a motor height ski-running rod-type oil injecting nozzle plan view, and in conjunction with the accompanying drawings the utility model is elaborated: according to shown in Figure 1: 1 is oil injecting nozzle among the figure, at oil injecting nozzle ⁽¹⁾Central through bore in, the oil spout slide bar is housed ⁽²⁾, the oil spout slide bar ⁽²⁾The lower end, the design have the two rows nozzle opening to communicate the oil spout slide bar with the center oil circuit ⁽²⁾Garden, upper end dish divide into spring and oil spout slide bar ⁽²⁾Be sleeved on together, the elastic force of spring is upwards mentioned the oil spout slide bar, makes the high low speed spray orifice of two rows of lower end imbed oil injecting nozzle ⁽¹⁾Mesopore in seal and cut off oil circuit, oil spout was got ready when next drew the running of journey for motor.Oil injecting nozzle ⁽¹⁾With sprinkler body ⁽³⁾With mother end cap sieve ⁽⁴⁾Twist into one, mother end cap sieve with the rib-loop connection ⁽⁴⁾In establish levelling sieve bolt ⁽⁷⁾Length the top dead center position of oil spout slide bar is carried out spacing, levelling levelling sieve bolt is equipped with mother sieve tightly admittedly then ⁽⁵⁾Be equipped with tight mother sieve ⁽⁶⁾When motor needs low-speed running, the low dose of fuel feeding of control throttle, oil spout slide bar ⁽²⁾At oil injecting nozzle ⁽¹⁾Release in the mesopore and expose first row's low speed spray orifice, fuel is sprayed into cylinder, make motor keep low-speed running.When large throttle heavy dose fuel feeding, low speed spray orifice instantaneous time is not drained a large amount of liquid, and pressure forces the oil spout slide bar ⁽²⁾Continue outwards to slide, exposed second row's high speed spray orifice and participated in oil spout, make motor obtain sufficient fuel and run up.Oil spout slide bar after the oil spout ⁽²⁾The decompression condition under by spring upspring with two row high low speed spray orifice manage into oil injecting nozzle ⁽¹⁾Seal and cut off oil circuit in the hole, get ready for next oil spout work.Finished the oil spout oil-break task of height ski-running rod-type oil injecting nozzle.

The present utility model modern design, rational in infrastructure, practicability is good, adopts colony's micro-spray technology to make the high fuel combustion of fuel atomization degree cut the end, horsepower is sufficient, running is stable, fuel saving, not over-emitting black exhaust, alleviated pollution, the face contact sealing that the design has changed the high pressure of prior art is the sliding valve style point sealing of low-pressure, becomes multiple ground to reduce the working pressure of high pressure oil pump, has prolonged the working life that oil pump oil is chewed.

Claims (1)

1, a kind of motor is characterized in that at oil injecting nozzle with the high low speed oil injecting nozzle of sliding rod type ⁽¹⁾Central through bore in the oil spout slide bar is housed ⁽²⁾, the oil spout slide bar ⁽²⁾Lower end design high low speed spray orifice of two rows and oil spout slide bar are arranged ⁽²⁾The mesopore oil circuit connect the oil spout slide bar ⁽²⁾The big end plate in top under, establish spring ⁽³⁾Be fitted together the oil spout slide bar with the oil spout jack rod sleeve ⁽²⁾From oil injecting nozzle ⁽¹⁾Mesopore in upwards mention the oil spout slide bar ⁽²⁾The high low speed spray orifice of two rows of lower end is imbedded in the mesopore of oil injecting nozzle.

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