CN86205030U

CN86205030U - Oil-saving solenoid valve controlling device for stopping cylinder of diesel engine

Info

Publication number: CN86205030U
Application number: CN 86205030
Authority: CN
Inventors: 林伟清
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-07-23
Filing date: 1986-07-23
Publication date: 1988-02-10

Abstract

The utility model relates to an oil-saving solenoid valve controlling device for stopping cylinders of a diesel engine, which controls the quantity of working cylinders according to the load change in the diesel engine and in particular the automobile engine. The utility model is characterized in that a solenoid valve is installed in a high-pressure oil tube between a high-pressure branch pump and an oil nozzle, the solenoid valve circuit is switched on and off through manual control or an automatic centrifugal regulator to control the high pressure oil whether or not going into the working cylinder, and the cylinder stopping and oil saving are realized. The utility model comprises the solenoid valve, the automatic centrifugal regulator, a relay, a manual switch, a connecting wires, etc.

Description

Oil-saving solenoid valve controlling device for stopping cylinder of diesel engine

The utility model is involved in a kind of Control of Automobile, the electromagnetic valve device of motor.Particularly be applied to control the solenoid valve cylinder-down oil saver of its clutch release slave cylinder oil circuit according to diesel engine load and rotating speed thereof.

Traditional motor car engine is transformed into the change Cylinder engine of working cylinder number could vary, is one of significant technology of oil-saving effect.Chinese patent CNzl85200450 proposes to use eccentric rocking arm to control 492 type petrol engine inlet and exhaust valves, under medium and small load, closes the inlet and exhaust valve of first cylinder, stop to arrange air inlet, motor is with three cylinder workings, under big load, then with four cylinder workings, to reach significant oil-saving effect.Invention can only be adapted to petrol engine at this point, and just ineffective to diesel engine, because it is to adopt wheel cylinder high pressure oil injection work.

The purpose of this utility model provides a kind of solenoid valve cylinder-down oil saver of controlling the fuel-economizing of diesel engine cylinder deactivation.It can artificially or automatically control its clutch release slave cylinder number according to engine load and rotating speed, to reach best oil-saving effect.

Model utility is achieved in that in the high-pressure oil pipe between high pressure wheel cylinder and jet and inserts solenoid valve, and it has one often to open mouthful and an oblique normally closed port, and under the normal duty rotating speed, high pressure oil is often opened mouth and flowed to jet and make cylinder operation.When medium and small load or high rotating speed, solenoid valve action high pressure oil flows to fuel tank through oblique normally closed port, and jet can not oil spout, realizes cylinder deactivation work.The general employing of four cylinder engine stopped first cylinder, and six cylinder engine adopts and stops first cylinder and the 4th cylinder, and solenoid valve can adopt single valve or combination brake switch and proporting control.Manual and automatic centrifugal governor two methods are adopted in control electromagnetic valve work, manual control is to travel etc. according to the travel situations of automobile such as empty wagons, descending, speed limit to use the switch connection electromagnetic valve circuit by the driver, make its work, realize cylinder deactivation, fuel-economizing, centrifugal governor is according to rotating speed of automobile engine automatically, requires greater than a certain rotating speed the time, when that is to say output power greater than load, centrifugal throws away the connection circuit, makes solenoid valve work, realizes the cylinder deactivation fuel-economizing.In order to protect the working life of automatic centrifugal governor, with the circuit of solenoid valve in insert a relay.

The utlity model has simple in structure, repacking easily, solenoid valve can directly be contained in the high-pressure service pump top, centrifugal governor can be contained on the generator shaft automatically, together uses carbon brush, manual switch goes between to operator cabin from solenoid valve and directly controls.The present invention has oil-saving effect and significantly reaches more than 10%, and sufficient combustion, and exhaust pollution declines to a great extent.The present invention also has easy to use and reliable, even this device failure, motor equally can also proper functioning.

Fig. 1 is the schematic representation according to the automatic centrifugal governor that proposes in the utility model.

Fig. 2 is according to the solenoid valve schematic representation that proposes in the utility model.

Fig. 3 realizes the utility model diesel engine solenoid valve cylinder-down oil saver actuating circuit schematic representation.

Referring now to Fig. 1, Fig. 2, Fig. 3 is elaborated the utility model, at Fig. 1, Fig. 2, among Fig. 3, the 1st, an axis hole is arranged in the middle of the tubular dish, fly piece 2 usefulness and fly piece pin 8 calmly thereon, 3 is spring bearer plate, the 4th, and contact, the 5th, rotating speed is adjusted screw rod, adjust the contact gap, 6,7 is the electrode carbon brush, and 9 is collector ring, the 10th, generator shaft, the 11st, solenoid valve connects high-pressure service pump high pressure oil filler opening, 12 be the high pressure oil outlet to engine nozzle, 13 is unloading port, the 14th, return spring, 15 valve housings, 16 spools, the 17th, push rod, 18 normal open walks, the 19th, normally closed slanted channel, the 20th, electromagnet, the 21st, electromagnet lead-in wire, the 22nd, automatic centrifugal governor contact, the 23rd, manual switch, 24 is relay, the 25th, storage battery.

Automobile is loaded in the process of moving always in continuous variation, below just this device under medium and small load is realized that to motor the process of cylinder deactivation fuel-economizing is narrated: manual mode operation, when the automobile zero load, when descending or speed limit are travelled, engine load is little during this period of time, can adopt manual method to press switch 23 and connect electromagnet 20 circuit, make its work, push rod 17 promotes spool 16 high pressure oils and enters normally closed slanted channel 19 after off-load mouth 13 returns fuel tank through hydraulic fluid port 11, at this moment engine nozzle does not enter high pressure oil and stops to the clutch release slave cylinder oil spout, make this cylinder burn-out blast and realize cylinder deactivation, when the automobile load is big, draw back 23, electromagnet 20 circuit disconnect.Spool is got back to the home position under the effect of return spring 14, the frequent open walk 18 of high pressure oil this moment enters high pressure oil outlet 12, oil nozzle gets high pressure oil to the working cylinder oil spout, realize full cylinder working, the variation of loading in the engine operation process is to be difficult to prediction accurately, at this moment adopt automatic centrifugal governor to control the clutch release slave cylinder number of motor, realize the cylinder deactivation fuel-economizing.Each motor all has the rated speed of oneself, under this rotating speed, and the power ratio maximum, oil consumption rate is economized most, engine running the best.But load variations is big in owing to travel, and output work often occurs greater than load, and engine speed is increased.This not only wastes oil plant but also engine life is shortened.Automatically centrifugal governor designs according to rotating speed exactly, when rotating speed during greater than rating value, it is down fixing at pin 8 one ends to fly piece 2, the other end is outside motion compresses spring bearer plate 3 under centrifugal action, just contact 4 combinations, circuit through carbon brush 6,7 collector rings 9 and connect 9 with the lead of contact 4, that is to say 22 automatic centrifugal governors connection circuit, relay 24 adhesives.The action of electromagnet 20 power on circuitry realizes the cylinder deactivation fuel-economizing.When load increases, flying the piece 2 centrifugal force contact 4 that diminishes under spring bearer plate 3 spring actions when rotating speed diminishes throws off, relay 24 disconnects, electromagnet 20 opens circuit, the spool return, motor just can make a generator carbon brush reduce manufacture cost with full cylinder working owing to automatic centrifugal governor is contained on the engine shaft.

Claims

1, a kind of solenoid valve cylinder-down oil saver of diesel engine fuel-economizing, it is by solenoid valve and control its manual switch or automatically centrifugal governor, relay, connection lead are formed.Whether logical oil is worked to it is characterized in that adopting solenoid valve to control a certain clutch release slave cylinder of motor by described solenoid valve cylinder-down oil saver.Described solenoid valve has a normal open walk and a normally closed passage.The frequent closed walk of high pressure oil flows back to fuel tank when solenoid valve moves.When being failure to actuate.The frequent open walk of high pressure oil enters oil nozzle.Use manual switch or automatic centrifugal governor according to load and engine speed change control electromagnetic valve circuit.

2, according to the diesel engine solenoid valve cylinder-down oil saver of claim 1, it is characterized in that described automatic centrifugal governor by the tubular dish, fly piece, fly the piece pin, spring bearer plate, contact, rotating speed are adjusted screw rod, electrode carbon brush, collector ring and relay, the connection lead is formed.Its structure is to fly the piece pin to be fixed in the tubular dish flying piece one end, the other end that flies piece outwards throws away in the rotary centrifugal force effect, be fixed in the spring bearer plate pressurized contact combination of tubular web, rotating speed is adjusted screw rod and adjust contact and spring bearer plate distance on the tubular dish, and collector ring, carbon brush connect lead and form on the tube internal axle sleeve.