阅读说明：本技术 一种电磁控制的甲醇输送泵 (Electromagnetic control's methyl alcohol delivery pump ) 是由 欧阳玲湘 邓集春 邓飞 黄民备 龙美彪 于 2020-12-22 设计创作，主要内容包括：本发明公开的一种电磁控制的甲醇输送泵,包括进油接头、柱塞阀部件、单向阀部件、电磁铁部件和出油接头,其通过电磁力来开启和关闭柱塞阀,进而通过单向阀部件来控制甲醇燃油的流入驻车加热器内。本发明的甲醇输送泵采用电磁力控制,便于自动控制。另外本发明还具有结构简单、维修方便的优点。(The invention discloses an electromagnetic control methanol delivery pump which comprises an oil inlet joint, a plunger valve component, a one-way valve component, an electromagnet component and an oil outlet joint, wherein the plunger valve is opened and closed through electromagnetic force, and then methanol fuel oil is controlled to flow into a parking heater through the one-way valve component. The methanol delivery pump is controlled by electromagnetic force, and is convenient to automatically control. In addition, the invention also has the advantages of simple structure and convenient maintenance.)

1. An electromagnetic control methanol delivery pump is characterized by comprising an oil inlet joint, a plunger valve component, a one-way valve component, an electromagnet component and an oil outlet joint, wherein an armature mounting hole, a plunger valve mounting hole, a one-way valve mounting hole and an oil outlet hole are sequentially arranged in the oil outlet joint from a first end to a second end of the oil outlet joint; the first end of the oil inlet joint is in interference sealing connection with the first end of the oil outlet joint through an electromagnet in the electromagnet component, the one-way valve component is installed in the one-way valve installation hole, the plunger valve component is installed in the plunger valve installation hole, an armature in the electromagnetic valve component is installed in the armature installation hole and sleeved on a plunger in the plunger valve component, and an oil inlet spring is arranged between the armature and the armature sealing butt-joint hole; the hole surface of the armature sealed butt joint hole is an inner conical surface, and an outer conical surface is arranged at the butt joint part of the armature and the armature sealed butt joint hole; a radial oil hole is formed in the bottom of a plunger sleeve of the plunger valve component, a first annular oil cavity is formed between the periphery of the plunger sleeve and a hole surface of the plunger valve mounting hole, the inner end of the radial oil hole is communicated with the plunger cavity, and the outer end of the radial oil hole is communicated with the first annular oil cavity; a second annular oil chamber is arranged between the periphery of the armature and the hole surface of the armature mounting hole, the armature is opposite to the end surface of the end, at the butt joint position of the armature and the armature seal butt joint hole, of the armature and an oil storage chamber is arranged between the end surface of the plunger sleeve, the second annular oil chamber is communicated with the first annular oil chamber through the oil storage chamber, and meanwhile the first annular oil chamber is communicated with the armature seal butt joint hole through an oil chamber between the first end of the oil inlet joint and the first end of the oil outlet joint.

2. The electromagnetic control methanol delivery pump of claim 1, wherein the electromagnet assembly further comprises an electromagnet housing securing the electromagnet to the first end of the oil inlet fitting and the first end of the oil outlet fitting, wherein a connector socket is disposed on the electromagnet housing, and a pin in the connector socket is electrically connected to a coil on the electromagnet.

3. The electromagnetically controlled methanol delivery pump of claim 2, wherein an adjustment spacer is disposed between the electromagnet housing and the first end of the oil outlet fitting for adjusting the size of the oil chamber between the first end of the oil inlet fitting and the first end of the oil outlet fitting, thereby adjusting the stroke of the armature.

4. A solenoid operated methanol delivery pump according to claim 1, wherein an oil filter is provided in the inlet port of the oil inlet joint.

5. An electromagnetically operated methanol delivery pump as claimed in claim 1, wherein said check valve member comprises an oil outlet spring, a steel ball and a skeleton oil seal, an oil hole being provided in said skeleton oil seal; the plunger sleeve is provided with a framework oil seal mounting hole at the end adjacent to the one-way valve component, the framework oil seal is mounted in the framework oil seal mounting hole in an interference fit mode, an oil hole in the framework oil seal is communicated with a plunger cavity in the plunger sleeve, a sealing conical surface matched with the steel ball is arranged at the end, adjacent to the steel ball, of the oil hole, one end of the oil outlet spring acts on the steel ball, the other end of the oil outlet spring acts on the oil outlet joint, and the oil outlet spring pushes the steel ball against the sealing conical surface in the framework oil seal to realize sealing.

6. The electromagnetically controlled methanol delivery pump of claim 1, wherein an O-ring seal is disposed on an end surface of said plunger adjacent said oil inlet connection.

7. An electromagnetically controlled methanol delivery pump according to any one of claims 1 to 6, wherein said oil inlet connection is connected to a tank via an oil line, and said oil outlet connection is connected to a parking heater via an oil line.

Technical Field

The invention relates to the technical field of methanol delivery pumps, in particular to an electromagnetic control methanol delivery pump.

Background

Cold start of methanol gasoline vehicles is more difficult than gasoline vehicles, especially with a high proportion of M85, M100 methanol fuel. The cold start of the methanol fuel automobile is difficult due to two reasons, namely that the volatilization temperature of the methanol fuel is higher than that of light components in the gasoline; one is latent heat of vaporization, the latent heat of vaporization of methanol fuel is far greater than that of vaporization of gasoline, when methanol fuel is evaporated and vaporized after entering an engine cylinder, a large amount of heat is absorbed to cause temperature reduction in the cylinder, and the latent heat of vaporization has no influence on the engine with working temperature reaching a normal value, and causes difficulty in starting the engine when the engine is started at a low temperature in a cold season.

Disclosure of Invention

The invention aims to provide an electromagnetic control methanol delivery pump aiming at the problem of difficult cold start of the existing methanol gasoline vehicle, which is characterized in that methanol is sucked into a parking heater from an oil tank, combustion air sucked from the surrounding environment and methanol from the oil tank of an automobile are mixed and ignited in a combustion chamber in the parking heater, and then a cooling liquid medium in a circulating system is heated by the combustion heat exchange principle. It can be combined with auxiliary heat-radiating devices of engine, radiator and defroster in the car to form circulating system, and can provide heat source for low-temp. starting of various car engines, defrosting of windscreen and heating in car interior.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an electromagnetic control methanol delivery pump comprises an oil inlet joint, a plunger valve component, a one-way valve component, an electromagnet component and an oil outlet joint, wherein an armature mounting hole, a plunger valve mounting hole, a one-way valve mounting hole and an oil outlet hole are sequentially arranged in the oil outlet joint from a first end to a second end of the oil outlet joint; the first end of the oil inlet joint is in interference sealing connection with the first end of the oil outlet joint through an electromagnet in the electromagnet component, the one-way valve component is installed in the one-way valve installation hole, the plunger valve component is installed in the plunger valve installation hole, an armature in the electromagnetic valve component is installed in the armature installation hole and sleeved on a plunger in the plunger valve component, and an oil inlet spring is arranged between the armature and the armature sealing butt-joint hole; the hole surface of the armature sealed butt joint hole is an inner conical surface, and an outer conical surface is arranged at the butt joint part of the armature and the armature sealed butt joint hole; a radial oil hole is formed in the bottom of a plunger sleeve of the plunger valve component, a first annular oil cavity is formed between the periphery of the plunger sleeve and a hole surface of the plunger valve mounting hole, the inner end of the radial oil hole is communicated with the plunger cavity, and the outer end of the radial oil hole is communicated with the first annular oil cavity; a second annular oil chamber is arranged between the periphery of the armature and the hole surface of the armature mounting hole, the armature is opposite to the end surface of the end, at the butt joint position of the armature and the armature seal butt joint hole, of the armature and an oil storage chamber is arranged between the end surface of the plunger sleeve, the second annular oil chamber is communicated with the first annular oil chamber through the oil storage chamber, and meanwhile the first annular oil chamber is communicated with the armature seal butt joint hole through an oil chamber between the first end of the oil inlet joint and the first end of the oil outlet joint.

In a preferred embodiment of the present invention, the electromagnet component further includes an electromagnet housing for fixing the electromagnet on the first end of the oil inlet joint and the first end of the oil outlet joint, a connection socket is disposed on the electromagnet housing, and a contact pin in the connection socket is electrically connected to a coil on the electromagnet.

In a preferred embodiment of the present invention, an adjusting cushion block is disposed between the electromagnet housing and the first end of the oil outlet joint, so as to adjust a size of an oil cavity between the first end of the oil inlet joint and the first end of the oil outlet joint, thereby adjusting a stroke of the armature.

In a preferred embodiment of the present invention, an oil filter is provided in the oil inlet hole of the oil feed joint.

In a preferred embodiment of the invention, the one-way valve component comprises an oil outlet spring, a steel ball and a framework oil seal, and an oil hole is formed in the framework oil seal; the plunger sleeve is provided with a framework oil seal mounting hole at the end adjacent to the one-way valve component, the framework oil seal is mounted in the framework oil seal mounting hole in an interference fit mode, an oil hole in the framework oil seal is communicated with a plunger cavity in the plunger sleeve, a sealing conical surface matched with the steel ball is arranged at the end, adjacent to the steel ball, of the oil hole, one end of the oil outlet spring acts on the steel ball, the other end of the oil outlet spring acts on the oil outlet joint, and the oil outlet spring pushes the steel ball against the sealing conical surface in the framework oil seal to realize sealing.

In a preferred embodiment of the invention, an O-ring seal is arranged on an end face of the plunger close to the oil inlet joint.

In a preferred embodiment of the invention, the oil inlet joint is connected with the oil tank through an oil pipe, and the oil outlet joint is connected with the parking heater through an oil pipe.

Due to the adoption of the technical scheme, the methanol delivery pump is controlled by electromagnetic force, so that the methanol delivery pump is convenient to automatically control. In addition, the invention also has the advantages of simple structure and convenient maintenance.

Drawings

The invention is further illustrated with reference to the following figures and examples, without thereby restricting the invention to the described examples.

Fig. 1 is a cross-sectional view of a solenoid-operated methanol delivery pump of the present invention.

Detailed Description

The invention is described in further detail below with reference to the figures and the detailed description.

Referring to fig. 1, the electromagnetic control methanol delivery pump shown in the figure comprises an oil inlet joint 13, a plunger valve component, a check valve component, an electromagnet component and an oil outlet joint 1, wherein the second end of the oil inlet joint 13 is connected with an oil tank through an oil pipe, and the second end of the oil outlet joint 1 is connected with a parking heater through an oil pipe.

An armature mounting hole 1a, a plunger valve mounting hole 1b, a check valve mounting hole 1c and an oil outlet hole 1d are sequentially arranged in the oil outlet joint 1 from the first end to the second end of the oil outlet joint 1.

The oil inlet joint 13 is provided with an armature seal butting hole 13a, an orifice hole 13b and an oil inlet hole 13c in sequence from the first end to the second end of the oil inlet joint 13. An oil strainer 14 is provided in the oil inlet hole 13c of the oil inlet joint 13.

An oil cavity 15 is formed between the first end of the oil inlet joint 13 and the first end of the oil outlet joint 1, the first end of the oil inlet joint 13 is in interference sealing connection with the first end of the oil outlet joint 1 through an electromagnet 11 in an electromagnet part, and therefore the methanol fuel in the oil cavity 15 is guaranteed not to leak. The electromagnet component also comprises an electromagnet shell 12 which is used for fixing the electromagnet 11 on the first end of the oil inlet joint 13 and the first end of the oil outlet joint 1, a wiring socket 12a is arranged on the electromagnet shell 12, and a contact pin in the wiring socket 12a is electrically connected with a coil on the electromagnet 11.

An adjusting cushion block 7 is arranged between the electromagnet housing 12 and the first end of the oil outlet joint 13, and is used for adjusting the size of an oil chamber 15 between the first end of the oil inlet joint 13 and the first end of the oil outlet joint 1, and further adjusting the stroke of the armature 8.

The plunger valve component comprises a plunger sleeve 5 and a plunger 6, the plunger sleeve 5 is installed in the plunger valve installation hole 1b, and a first annular oil cavity 16 is arranged between the periphery of the plunger sleeve 5 and the hole surface of the plunger valve installation hole 1 b. One part of the plunger 6 is fitted in the plunger cavity 5a of the plunger sleeve 5, and the other part extends out of the plunger sleeve 5 and passes through the armature seal abutting hole 13a and the oil cavity 15.

An armature 8 in the electromagnetic valve component is arranged in an armature mounting hole 1a and is sleeved on the plunger 6 by adopting close fit, and an oil inlet spring 9 is arranged between the armature 8 and an armature seal butt joint hole 13 a; the hole surface of the armature sealed butt joint hole 13a is an inner conical surface, and an outer conical surface is arranged at the butt joint part 8a of the armature and the armature sealed butt joint hole.

And a radial oil hole 5b is formed at the bottom of the plunger sleeve 5, the inner end of the radial oil hole 5b is communicated with the plunger cavity 5a, and the outer end of the radial oil hole 5b is communicated with the first annular oil cavity 16.

A second annular oil chamber 17 is arranged between the periphery of the armature 8 and the hole surface of the armature mounting hole 1a, an oil storage chamber 18 is arranged between the end surface of the end, opposite to the butt joint part 8a of the armature and the armature sealing butt joint hole, of the armature 8 and the end surface of the plunger sleeve 5, the second annular oil chamber 17 is communicated with a first annular oil chamber 16 through the oil storage chamber 18, and meanwhile the first annular oil chamber 16 is also communicated with the armature sealing butt joint hole 13a through an oil chamber 15.

A skeleton oil seal mounting hole 5c is provided at the end of the plunger sleeve 5 adjacent to the one-way valve member. The check valve component is arranged in the check valve mounting hole and comprises an oil outlet spring 2, a steel ball 3 and a framework oil seal 4, and an oil hole 4a is formed in the framework oil seal 4. The framework oil seal 4 is arranged in the framework oil seal mounting hole 5c in an interference fit mode so as to meet the sealing requirement and ensure that methanol fuel in the plunger cavity 5a is not leaked; an oil hole 4a in the framework oil seal 4 is communicated with a plunger cavity 5a, one end of the oil hole 4a, which is adjacent to the steel ball 3, is provided with a sealing conical surface 4b matched with the steel ball 3, one end of an oil outlet spring 2 acts on the steel ball 3, the other end of the oil outlet spring acts on the oil outlet joint 1, the oil outlet spring 2 pushes the steel ball 3 against the sealing conical surface 4b in the framework oil seal 4 to realize sealing, and the oil outlet pressure is ensured through the spring force of the oil outlet spring 2 acting on the steel ball 3.

The working principle of the invention is as follows: methanol fuel enters an oil chamber 15 of the methanol transfer pump from the oil inlet joint 13 through an oil filter 14.

When the electromagnet 11 is powered off, the armature 8 is pushed open by the oil inlet spring 9, the plunger 6 is pushed to move to the lowest end, the bottom surface of the plunger 6 is completely attached to the framework oil seal 4 at the moment, and the methanol fuel enters a first annular oil cavity 16 between the plunger sleeve 5 and the plunger valve mounting hole 1b through a second annular oil cavity 17 between the armature 8 and the armature mounting hole 1 a.

When the electromagnet 11 is electrified, the electromagnetic force overcomes the spring force of the oil inlet spring 9, the armature 8 and the plunger 6 are driven to move upwards to the armature seal butt joint hole 13a of the oil inlet joint 13, at the moment, the O-shaped sealing ring 10 on the plunger 6 is in contact with the hole bottom of the armature seal butt joint hole 13a, the O-shaped sealing ring 10 plays a role in shock absorption and sealing, the armature 8 is guaranteed not to collide with the hole bottom of the armature seal butt joint hole 13a, and the methanol fuel is prevented from continuously entering the oil cavity 15. The methanol fuel in the first annular oil chamber 16 between the plunger sleeve 5 and the plunger valve mounting hole 1b enters the plunger cavity 5a of the plunger sleeve 5 through the radial oil hole 5b of the plunger sleeve 5, at the moment, the methanol fuel in the plunger cavity 5a of the plunger sleeve 5 is almost in a negative pressure state, the spring force of the oil outlet spring 2 cannot be overcome, the one-way valve component is in a closed state, and the methanol fuel cannot flow out. When the electromagnet is powered off again, the armature 8 and the plunger 6 are pushed by the oil inlet spring 9 to move downwards quickly, so that the bottom of the plunger 6 compresses methanol fuel oil in the plunger cavity 5a, when the pressure of the methanol fuel oil is greater than the spring force of the oil outlet spring 2 acting on the steel ball 3, the steel ball 3 moves downwards, the oil hole 4a in the framework oil seal 4 is opened, and the methanol fuel flows into the oil outlet hole 1d in the oil outlet joint 1 through the oil hole 4a in the framework oil seal 4 and flows out, and enters the parking heater through the oil way.