CN104962366A - Connecting-rod-free high-speed gasoline engine lubricant - Google Patents

Abstract

The invention discloses a non-connecting rod high-speed gasoline engine lubricant, which uses 66% of phthalate and 34% of polyalphaolefin compounded as base oil, and mixes various additives, including: detergent, Dispersant, anti-oxidant and anti-corrosion agent, extreme pressure agent, anti-wear agent, antioxidant, anti-rust agent, anti-foaming agent, auxiliary agent. The lubricant of the present invention has the characteristics of internal combustion engine oil, hydraulic oil, good lubrication, cooling, sealing, cleaning, anti-corrosion and anti-rust properties, good anti-wear, anti-shear, anti-paint film, bearing capacity, thermal oxidation stability , Acid neutralization, alkali value retention, shock absorption, noise reduction, low emission, energy saving characteristics, and a longer oil change period; it is also suitable for long-term storage.

Description

Lubricant for non-connecting rod high-speed gasoline engine

technical field

The invention belongs to the field of engine lubricants, in particular to a lubricant for high-speed gasoline engines without connecting rods.

Background technique

A connecting rodless engine, that is, without the connecting rod arrangement that is often found in conventional engines. In fact, it adopts the effect of replacing the connecting rod mechanism by an eccentric circular slider or other devices. The connecting rodless engine has the advantages of simple structure, small size, stable operation, small vibration and low noise. Using it on many special occasions can show its superior characteristics. Its structural features: the machine parts are cast as a whole, and the process performance is good; the piston structure is quite different from the conventional piston, the two pistons are connected as a whole, and each end is a piston head, which bears the cylinder pressure; The eccentric circular slider bears the thrust that makes the piston reciprocate; the upper and lower sides play a guiding role, and the guiding parts are all located within the range of the cylinder water jacket, so that the heat dissipation is uniform, and the friction loss is small when the pressure is the same; the eccentric wheel is for the circular slider. , is a two-wheel structure. It is one of the iconic parts of a connecting rodless engine. The two eccentric wheels are respectively placed in the piston and the straight slider, which are the key components to realize the conversion of the reciprocating motion of the piston into the rotary motion of the crank; the straight slider is also another symbolic part of the connecting rodless engine, the movement of the straight slider Perpendicular to the direction of piston movement, it is an important part used to coordinate the normal operation of the non-connecting rod engine; the crank is a split type, and the crank pin must be pressed into the center hole of the eccentric circular slider. Due to the limitation of the connecting diameter of the circular slider, the crank pin The diameter is smaller than that of ordinary engines, the specific pressure is larger than that of conventional engines, and the relative movement speed is relatively high, so the crank requires intensive treatment.

Contents of the invention

The technical problem to be solved by the present invention is to provide a kind of engine oil with internal combustion engine oil characteristics, hydraulic oil characteristics, good lubrication, cooling, sealing, cleaning, anti-corrosion and rust resistance, good anti-wear, anti-shear, anti-paint film, load bearing ability, thermal oxidation stability, acid neutralization, alkali value retention ability, and shock absorption, noise reduction, low emission, energy saving characteristics, and has a long oil change period; it is also suitable for long-term storage without connecting rod high-speed Petrol engine lubricant.

The present invention adopts following technical scheme to solve the above-mentioned technical problem:

A non-connecting rod high-speed gasoline engine lubricant, using a mass ratio of 66% phthalate and 34% polyalphaolefin compound as base oil, with a variety of additives, its components and their mass percentages are :

components Mass percentage content base oil margin detergent 5%～6% Dispersant 3%～4% Antioxidant preservative 0.3%～0.5% extreme pressure agent 1%～2% antiwear agent 1%～2% antioxidant 0.3%～0.5% Rust inhibitor 0.2%～0.3% Antifoaming agent 50ppm～100ppm Auxiliary 1%～2%

The cleaning agent is a composite of 50% low alkali value synthetic calcium sulfonate and 50% high alkali value synthetic calcium sulfonate by mass ratio.

The dispersant is a composite of polymer succinimide T161A with a mass ratio of 50% and bis-succinimide at 50%.

Antioxidant preservative is bis-octyl basic zinc salt of thion.

The extreme pressure agent is phenyl phosphorothioate.

The antiwear agent is tricresyl phosphate.

The antioxidant is composed of 50% butyl octyl diphenylamine and 50% benzotriazole derivatives in mass ratio.

The antirust agent is a composite of 50% sodium petroleum sulfonate and 50% benzotriazole by mass.

The antifoaming agent is simethicone.

The additive is sulfurized calcium alkylphenate.

The remarkable advantages of the present invention are: it has the characteristics of internal combustion engine oil, hydraulic oil, good lubrication, cooling, sealing, cleaning, anti-corrosion and anti-rust properties, good anti-wear, anti-shear, anti-paint film, bearing capacity, thermal oxidation Stability, acid neutralization, alkali value retention, shock absorption, noise reduction, low emission, energy saving, and a long oil change period; it is also suitable for long-term storage.

Detailed ways

Example 1:

The components are blended according to the following mass percentages:

components Mass percentage content The mass ratio is 66% phthalate and 34% polyalphaolefin composite margin Composite of 50% low base value synthetic calcium sulfonate and 50% high base value synthetic calcium sulfonate 5% The mass ratio of 50% polymer succinimide (T161A) and 50% bis-succinimide composite 3% Phosphobisoctyl basic zinc salt 0.3% Phenyl phosphorothioate 1% tricresyl phosphate 1% 50% mass ratio of butyl octyl diphenylamine and 50% benzotriazole derivative compound 0.3% The mass ratio is 50% sodium petroleum sulfonate and 50% benzotriazole composite 0.2% Simethicone 50ppm Sulfated calcium alkylphenate 1%

The sum of the mass percentages of the above components is 100%.

Example 2:

The components are blended according to the following mass percentages:

components Mass percentage content The mass ratio is 66% phthalate and 34% polyalphaolefin composite margin Composite of 50% low base value synthetic calcium sulfonate and 50% high base value synthetic calcium sulfonate 5.5% The mass ratio of 50% polymer succinimide (T161A) and 50% bis-succinimide composite 3.5% Phosphobisoctyl basic zinc salt 0.4% Phenyl phosphorothioate 1.5% tricresyl phosphate 1.5% 50% mass ratio of butyl octyl diphenylamine and 50% benzotriazole derivative compound 0.4% The mass ratio is 50% sodium petroleum sulfonate and 50% benzotriazole composite 0.25% Simethicone 75ppm Sulfated calcium alkylphenate 1.5%

The sum of the mass percentages of the above components is 100%.

Example 3:

The components are blended according to the following mass percentages:

components Mass percentage content The mass ratio is 66% phthalate and 34% polyalphaolefin composite margin Composite of 50% low base value synthetic calcium sulfonate and 50% high base value synthetic calcium sulfonate 6% The mass ratio of 50% polymer succinimide (T161A) and 50% bis-succinimide composite 4% Phosphobisoctyl basic zinc salt 0.5% Phenyl phosphorothioate 2% tricresyl phosphate 2% 50% mass ratio of butyl octyl diphenylamine and 50% benzotriazole derivative compound 0.5% The mass ratio is 50% sodium petroleum sulfonate and 50% benzotriazole composite 0.3% Simethicone 100ppm Sulfated calcium alkylphenate 2%

The sum of the mass percentages of the above components is 100%.

The main physicochemical index of embodiment 3 products:

project Quality Index Kinematic viscosity (40℃)/mm ² /s 68.5 viscosity index 127 Flash point (opening)/℃ 226 Pour point/℃ -25 Evaporation loss/% (Noack, 250℃, 1h) 10.2 Mechanical impurities/% none Moisture/% trace Sulfated ash/% 0.81 Alkaline value/mgKOH/g 8.3 Bearing capacity P _B /N 912

Claims (10)

1. A non-connecting rod high-speed gasoline engine lubricant is characterized in that: the phthalate ester of 66% mass ratio and the polyalpha-olefin composite of 34% are used as base oil, and various additives are combined. Points and their mass percentages are: base oil balance, Detergent 5% ~ 6%, Dispersant 3% ~ 4%, Antioxidant preservative 0.3% ~ 0.5%, Extreme pressure agent 1% to 2%, Antiwear agent 1%~2%, Antioxidant 0.3%～0.5%, Rust inhibitor 0.2%～0.3%, Antifoaming agent 50ppm～100ppm, Auxiliary 1% to 2%. 2. a kind of non-connecting rod high-speed gasoline engine lubricant as claimed in claim 1, is characterized in that, detergent is the synthetic calcium sulfonate of low alkali number and 50% synthetic calcium sulfonate of high alkali number of mass ratio complex. 3. a kind of non-connecting rod high-speed gasoline engine lubricant as claimed in claim 1, is characterized in that, dispersant is the polymer succinimide T161A of mass ratio 50% and the bis-succinimide of 50% complex. 4. a kind of non-connecting rod high-speed gasoline engine lubricant as claimed in claim 1, is characterized in that, anti-oxidant preservative is sulfur phosphorus bis-octyl basic zinc salt. 5. a kind of non-connecting rod high-speed gasoline engine lubricant as claimed in claim 1, is characterized in that, extreme pressure agent is thiophosphate phenyl ester. 6. a kind of non-connecting rod high-speed gasoline engine lubricant as claimed in claim 1 is characterized in that, antiwear agent is tricresyl phosphate. 7. A kind of non-connecting rod high-speed gasoline engine lubricant as claimed in claim 1, is characterized in that, antioxidant is the compound of 50% butyl octyl diphenylamine and 50% benzotriazole derivatives by mass ratio. 8. A kind of non-connecting rod high-speed gasoline engine lubricant as claimed in claim 1, is characterized in that, antirust agent is that the sodium petroleum sulfonate of mass ratio 50% and the benzotriazole compound of 50%. 9. a kind of non-connecting rod high-speed gasoline engine lubricant as claimed in claim 1, is characterized in that, antifoaming agent is simethicone. 10. A kind of non-connecting rod high-speed gasoline engine lubricant as claimed in claim 1, is characterized in that, auxiliary agent is sulfurized calcium alkylphenate.