CN2319585Y - Electromagnetic automatic fuel control device of diesel engine - Google Patents

Abstract

The utility model relates to an electromagnetic automatic fuel control device for a diesel engine, which is used for the parking and the flameout control of a diesel automobile or a tractor, etc. The utility model mainly comprises a coil, a piston, and a transfer switch of electric circuit. The utility model adopts double coils which are connected in parallel, and the double coils are wound on a support frame. End covers are arranged on both ends of the support frame, and the inside of a front end cover is connected with a guide barrel. The piston is composed of a piston body and a piston head. The piston body is a convex hump-shaped cylinder, and the piston body is connected with the screw thread of the piston head, a top rod is arranged on the centre hole position of a switch base, a contact piece arranged on a top pillar of a switch spring is sheathed on a spring guide pillar, and a lower contact piece is fixed on the switch base. When the piston switches the current on, the utility model can attract; when the piston switches the current off, the utility model can bounce. Accordingly, the switch can directly control the flameout of an oil pump. The utility model has the advantages of simple structure, high safety, convenient installation, and convenient maintenance.

Description

The diesel engine electromagnetism is controlled oily device automatically

The utility model is that a kind of diesel engine electromagnetism is controlled oily device automatically, is used to control switch-offs such as diesel car or tractor, belongs to the automobile electrical appliances technical field.

Have in the existing external imported auto and use the electromagnetic type fuel cut-out device, its complex structure requires high to coil, be not suitable for the use of homemade oil pump, domesticly a kind of unicoil electromagnetism series type diesel engine cut-out device also once occurred, but its unstable properties, circuit is loaded down with trivial details, and complexity is installed, and cost is higher.

The purpose of this utility model is at the operation present situation of switch-offs such as present diesel car or tractor, provides a kind of simple in structure, safe and reliable automatic control oil device, and it is flame-out to realize that switch is directly controlled oil pump.

For realizing such purpose, the inventor has designed a kind of twin coil and connect formula diesel engine electromagnetism controls oily device automatically, mainly comprises coil, piston and circuit changing switch, and by piston energising adhesive, the action of outage bounce-back reaches the flame-out purpose of oil pump.The enameled wire loop of controlling oily device is on the hollow cylinder body support frame, by two secondary coil up and down and connect and form, this two secondary coil is respectively hauling-eye and hold-in winding, front cover and rear end cover are equipped with in the support two ends, in front cover, be connected to the hollow guide of a cylindrical body, the one end has outside thread and the oily device shell of control to join, and the other end has internal thread and oil pump to join.Piston is made up of piston body and piston head two-part, piston body is a convex shoulder shape cylindrical body, the bottom convex shoulder can slide in the endoporus of support, the top of piston body is with piston spring and joins with the piston head screw thread, can slide before and after the hollow guide inwall of cylindrical body, piston head directly withstands on the diesel engine oil pump piston.The switch pedestal of rear end cover connecting circuit conversion portion, one push rod is arranged on the central hole location of switch pedestal, both sides have two spring guide pillars to pass on a slice contact respectively to be fixedly connected on the switch bottom, be with two switch springs on the spring guide pillar and withstand contact, correspond to the contact position on contact both sides, have two following contacts to be fixed on the switch pedestal, the switch pedestal two ends have perforate to connect power line by wiring terminal.

When coil was not switched on, piston was in an initial position, after electric switch is opened energising, because last contact is former with following contact to be contact condition, two secondary coil are switched on simultaneously, attract piston and drive oil pump piston to advance push rod jack-up, make that contact separates with last contact under the throw over switch, hauling-eye is cut off automatically, hold-in winding is worked always, it is unimpeded to keep oil circuit, after the electric switch outage, coil losing electricity, piston spring ejects piston, oil pump piston is pushed up back, thereby throttle is closed.

For the purpose of clearer, the utility model is described in further detail below in conjunction with accompanying drawing.

Accompanying drawing 1 is a structural representation of the present utility model.

Among the figure, the diesel engine electromagnetism is controlled the enameled wire loop 10 of oily device automatically on hollow cylinder body support frame 4, coil 10 is by two secondary coil and connect and form, this two secondary coil is respectively hauling-eye and hold-in winding, front cover 6 and rear end cover 12 are equipped with in support 4 two ends, be connected to the hollow guide 9 of a cylindrical body in the centre of front cover 6, an end of hollow guide 9 has outside thread and the oily device shell 11 of control to join, and the other end has internal thread and oil pump to join.Piston is made up of piston body 5 and piston head 8 two-part, piston body 5 is a convex shoulder shape cylindrical body, its underpart convex shoulder can slide in the endoporus of support 4, its top is with piston spring 7 and joins with piston head 8 screw threads, can slide before and after the inwall of the hollow guide 9 of cylindrical body, and piston head 8 is plane screws, its screw mandrel position connects piston body 5, its position, plane presses closer the diesel engine oil pump piston, and the tense-lax may command automobile oil mass of its screw thread is avoided over-emitting black exhaust.The switch pedestal 3 of rear end cover 12 connecting circuit conversion portions, one push rod 2 is arranged on the central hole location of switch pedestal 3, both sides have two spring guide pillars 16 to pass on a slice contact 14 respectively to be fixedly connected on the switch bottom, be with two switch springs 15 on the spring guide pillar 16 and withstand contact 14, correspond to the contact position on contact 14 both sides, have two following contacts 13 to be fixed on the switch pedestal 3, the two ends of switch pedestal 3 have perforate to pass through wiring terminal 1 connection power line.

After electric switch is opened coil electricity, be contact condition because down contact 13 and last contact 14 are former, two secondary coil are switched on simultaneously, attract piston also to drive oil pump piston and advance, make that contact 13 separates with last contact 14 under the throw over switch, hauling-eye is cut off automatically push rod 2 jack-up, hold-in winding is worked always, it is unimpeded to keep oil circuit, after the electric switch outage, and coil losing electricity, piston spring 7 ejects piston, oil pump piston is pushed up back, thereby throttle is closed, oil pump is flame-out.Meanwhile, switch spring 16 will be gone up contact 14 and rebound, and push rod 2 is resetted, and last contact 13 also returns to initial contact condition with last contact 14.

The utility model can be directly installed on the diesel engine oil pump, and required power supply is a vehicle accumulator, does not need to set up in addition power supply, does not also need other any transmission device, and is simple in structure, easy to maintenance.Adopt twin coil and connect work, by piston energising adhesive, the action of outage bounce-back, reach the flame-out purpose of oil pump, saved flame-out backguy, be applicable to the electronic flame-out control of various diesel engine, made diesel car or dilatory function as gasoline automobile, it is flame-out to realize that switch is directly controlled oil pump, installs and uses very convenient.

Claims (1)

1, a kind of diesel engine electromagnetism is controlled oily device automatically, mainly comprise coil, piston and circuit changing switch, it is characterized in that coil 10 is by two secondary coil and connect and form, on hollow cylinder body support frame 4, front cover 6 and rear end cover 12 are equipped with in support 4 two ends, in front cover 6, be connected to the hollow guide 9 of a cylindrical body, piston is made up of piston body 5 and piston head 8, piston body 5 is a convex shoulder shape cylindrical body, the bottom convex shoulder can slide in the endoporus of support 4, top is with piston spring 7 and joins with piston head 8 screw threads, one push rod 2 is arranged on the central hole location of the switch pedestal 3 that is connected with rear end cover 12, both sides have spring guide pillar 16 to pass contact 14 to be fixedly connected on the switch bottom, be with switch spring 15 on the spring guide pillar 16 and withstand contact 14, correspond to the contact position on contact 14 both sides, have two following contacts 13 to be fixed on the switch pedestal 3, switch pedestal 3 two ends have perforate to pass through wiring terminal 1 connection power line.

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