CN210049964U

CN210049964U - Reciprocating piston type internal combustion engine

Info

Publication number: CN210049964U
Application number: CN201920816789.6U
Authority: CN
Inventors: 郭康权; 车琪; 崔轶立; 卫乃硕; 赵梓彤; 朱珈乐; 胡宸玮; 卫武权; 党小选
Original assignee: Northwest A&F University
Current assignee: Northwest A&F University
Priority date: 2019-06-02
Filing date: 2019-06-02
Publication date: 2020-02-11
Anticipated expiration: 2029-06-02

Abstract

The utility model discloses a reciprocating piston internal-combustion engine belongs to the internal-combustion engine field. The outer ring 6 is fixedly connected with the piston 9, but the axes of the outer ring and the piston are not concentric, so that the inner ring cannot drive the outer ring to rotate when rotating; the upper part of the outer ring 8 is provided with an air hole 17 to eliminate the pressure of the sealed cavity of the outer ring 6 and the inner ring 7; the lower part of the inner ring 7 is fixedly connected with the flywheel 3; the flywheel 3 is fixedly connected with the main shaft 1, and the ignition or oil injection, exhaust and air intake arc bulges are arranged on the flywheel 3 and are dynamically balanced with the main shaft 1 and the inner ring 7; the mandrel 8 is fixedly connected with the outer ring 6 and the piston 9, and the lower end of the mandrel is fixedly connected with a mandrel bearing 26; the upper end of the inner ring 7 is fixedly connected with an inner ring bearing 24; the inner ring bearing 24 is in clearance fit with the mandrel 8; dabber bearing 26 on install respectively about sealed 25 and the lower seal of filling up 27, the utility model discloses an internal-combustion engine has following advantage: 1. all moving parts are axisymmetric rotary parts, and the structure is simple; 2. the motion form is simple, only rotary motion and reciprocating motion are required, and the generated noise is low; 3. the parts have low processing requirements and are easy to manufacture.

Description

Reciprocating piston type internal combustion engine

Technical Field

The utility model relates to an internal-combustion engine device belongs to the power machinery field. In particular to a reciprocating piston type internal combustion engine based on a rotary motion and reciprocating linear motion conversion mechanism consisting of a retainer-free curved groove ball bearing and a spring.

Background

In recent 150 years, Otto, Germany, invented a reciprocating piston four-stroke internal combustion engine, which was a power machine that burned liquid or gaseous fuel in cylinders and directly converted the heat energy released into mechanical power. The common reciprocating piston type internal combustion engine mainly comprises a cylinder, a piston, a crank, a connecting rod and the like. The cylinder is a space for realizing working cycle and generating power; the piston can reciprocate in the cylinder sleeve, fuel is combusted in the cylinder, the generated power pushes the piston to reciprocate, the crankshaft is pushed to rotate through the connecting rod, and then the power is output from the flywheel end. When the connecting rod works, the small end of the connecting rod reciprocates along with the piston, the large end of the connecting rod rotates around the axis of the crankshaft along with the crank pin, and the rod body between the large end and the small end of the connecting rod does complex swinging motion. The crankshaft converts the reciprocating motion of the piston into rotary motion, and transmits the work of the expansion stroke to drive the vehicle or mechanical equipment.

Since the invention of the reciprocating piston type internal combustion engine based on the crank connecting rod mechanism, the development of industrial revolution and transportation technology is promoted, comfortable and rapid travel convenience is brought to people, and the reciprocating piston type internal combustion engine has an important influence on the improvement of the life quality of people. However, the crank structure is complex, the requirement on materials is high, the processing difficulty is high, the defect can not be overcome, and meanwhile, the connecting rod is also stressed and has a complex motion state, so that the complex inertia effect and noise are brought, and the historical proposition is required to be continuously improved in the engine industry.

The application numbers are: 201910190746.6 discloses a reciprocating piston type internal combustion engine without a crank link mechanism, which uses the push stroke action of a retainer-free curved groove ball bearing and the vacuum suction stroke action of a plunger cylinder to realize the reciprocating circulation of the engine piston. The disadvantage is that the leakage affects the reliability of the return stroke of the engine piston after the plunger cylinder is worn.

In order to overcome the above-mentioned drawback of reciprocating piston internal-combustion engine, the utility model discloses a reciprocating piston internal-combustion engine. A reciprocating piston type internal combustion engine based on a rotary motion and reciprocating linear motion conversion mechanism (patent application number: 201910459089.0) consisting of a retainer-free curved groove ball bearing (patent application number: CN 201910024162.1) and a retainer-free curved groove ball bearing and a spring comprises a cylinder, a piston, a motion form conversion mechanism consisting of a double retainer-free curved groove ball bearing and a spring, an inertia flywheel, an air inlet and exhaust system and the like. The utility model discloses a moving part of internal-combustion engine is whole to be axisymmetric type gyration part, and the operation is reliable, can overcome a great deal of drawback of above-mentioned engine.

Disclosure of Invention

The internal combustion engine of the utility model aims at realizing above-mentioned utility model purpose utilizes no retainer curved groove ball bearing can realize pushing away journey and spring and can realize reliably returning journey with great amplitude of oscillation to this rotary motion replaces crank link mechanism with reciprocal linear motion shifter. The utility model designs a no holder curved groove ball bearing that every gyration a week of an interior outer lane has two complete circulations, four round trips, pushes away its two journey and is used as compression and exhaust stroke respectively, and two return strokes are used as the burning power respectively and the stroke of breathing in. The compression and exhaust pushing stroke is realized by utilizing the principle that when the inner ring of the curved groove ball bearing rotates by utilizing the inertia force of a system, the rising inclined surface pushes the piston to move upwards and stores elastic potential energy for the spring; the return air suction stroke utilizes the resilience of a spring to pull the piston to move downwards, the return acting stroke is driven by the piston to rotate the inner ring, and power is output. The technical scheme for realizing the purpose of the utility model is as follows:

a reciprocating piston type internal combustion engine is composed of a main shaft 1, a bearing 2, a flywheel 3, an exhaust push rod 4, an air inlet push rod 5, an outer ring 6, an inner ring 7, a mandrel 8, a piston 9, a cylinder 10, a cylinder cover 11, an air inlet lever 12, an exhaust lever 13, an air inlet valve 14, an exhaust valve 15, a spark plug or an oil nozzle 16, an air hole 17, a steel ball group 18, a spring 19, a one-way valve 20, a machine body 21, a lubricating oil channel 22, a power output gear 23, an inner ring bearing 24, an upper sealing gasket 25, a mandrel bearing 26 and a lower sealing gasket 27, and is characterized: the outer ring 6 is fixedly connected with the piston 9, but the axes of the outer ring and the piston are not concentric, so that the inner ring cannot drive the outer ring to rotate when rotating; the upper part of the outer ring 8 is provided with an air hole 17 to eliminate the pressure of the sealed cavity of the outer ring 6 and the inner ring 7; the lower part of the inner ring 7 is fixedly connected with the flywheel 3; the flywheel 3 is fixedly connected with the main shaft 1, and the ignition or oil injection, exhaust and air intake arc bulges are arranged on the flywheel 3 and are dynamically balanced with the main shaft 1 and the inner ring 7; the mandrel 8 is fixedly connected with the outer ring 6 and the piston 9, and the lower end of the mandrel is fixedly connected with a mandrel bearing 26; the upper end of the inner ring 7 is fixedly connected with an inner ring bearing 24; the inner ring bearing 24 is in clearance fit with the mandrel 8; the upper sealing gasket 25 and the lower sealing gasket 27 are respectively arranged on the upper part and the lower part of the mandrel bearing 26;

the cylinder 10 is embedded on the machine body 21; the main shaft 1 is arranged on the machine body 21 through a bearing 2 and is connected with a power output gear 23;

the lower part of the inner ring 7 is provided with a one-way valve 20 and a lubricating oil passage 22;

the mandrel bearing 26 is in clearance fit with the inner ring 7;

the inner ring bearing 24 and the mandrel 8 are in clearance fit

The upper sealing gasket 25, the lower sealing gasket 27, the one-way valve 20 and the lubricating oil channel 22 are respectively arranged on the upper part and the lower part of the mandrel 8 and the mandrel bearing 26 to form a lubricating oil pump, and the lubricating oil is conveyed to the parts, needing to be lubricated, of the steel ball group 18 and the piston 9;

the curved raceways of the outer ring 6 and the inner ring 7 have 2 periods respectively, and each period has a peak and a valley.

Compare with the internal-combustion engine that traditional crank link mechanism constitutes, the utility model discloses an internal-combustion engine has following advantage:

1. all moving parts are axisymmetric rotary parts, so that the operation is reliable and the structure is simple;

2. the motion form is simple, only rotary motion and reciprocating motion are required, and the generated noise is low;

3. the parts have low processing requirements and are easy to manufacture.

Drawings

FIG. 1 is a schematic diagram of a reciprocating piston internal combustion engine;

FIG. 2 is a schematic view of the mandrel and its attachment;

the legend symbols in the figures represent the following meanings:

1-main shaft, 2-bearing, 3-flywheel, 4-exhaust push rod, 5-intake push rod, 6-outer ring, 7-inner ring, 8-mandrel, 9-piston, 10-cylinder, 11-cylinder cover, 12-intake lever, 13-exhaust lever, 14-intake valve, 15-exhaust valve, 16-spark plug or oil nozzle, 17-air hole, 18-steel ball group, 19-spring, 20-one-way valve, 21-engine body, 22-lubricating oil channel, 23-power output gear, 24-inner ring bearing, 25-upper sealing gasket, 26-mandrel bearing and 27-lower sealing gasket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. As shown in fig. 1, the utility model discloses a reciprocating piston type internal combustion engine comprises main shaft 1, bearing 2, flywheel 3, exhaust push rod 4, air inlet push rod 5, outer lane 6, inner circle 7, dabber 8, piston 9, cylinder 10, cylinder head 11, air inlet lever 12, exhaust lever 13, admission valve 14, discharge valve 15, spark plug or fuel sprayer 16, gas pocket 17, steel ball group 18, spring 19, check valve 20, organism 21, lubricating oil duct 22, power take off gear 23, inner circle bearing 24, upper seal pad 25, dabber bearing 26, lower seal pad 27.

The raceways on the outer ring 6 and the inner ring 7 form a mechanism with two cycles and four strokes per revolution, two pushing strokes of the mechanism are respectively used for compression and exhaust, and two return strokes are respectively used for combustion work and air intake; the main shaft 1 is provided with a

power output gear

23, 4 single-cylinder internal combustion engines can be connected into a unit by using the power output gear 23 and a central gear, the working strokes of the unit are mutually staggered by 90 degrees of phase, and each moment is formed to have the working stroke; or 2 internal combustion engines can be connected into a unit by using a central gear, or 1 internal combustion engine can be independently used as a power source.

The utility model discloses an internal-combustion engine that utilizes the motion form shifter of no holder curved groove ball bearing and spring constitution to realize reciprocating motion. Under the same condition of the basic concept principle of the utility model, the utility model discloses can design into the structural style that different cylinder sizes, different detailed structure change and local improvement, these all constitute the utility model discloses other embodiments.

Claims

1. The utility model provides a reciprocating piston type internal-combustion engine, by main shaft (1), bearing (2), flywheel (3), exhaust push rod (4), air inlet push rod (5), outer lane (6), inner circle (7), dabber (8), piston (9), cylinder (10), cylinder head (11), air inlet lever (12), exhaust lever (13), admission valve (14), discharge valve (15), spark plug or fuel sprayer (16), gas pocket (17), steel ball group (18), spring (19), check valve (20), organism (21), lubricating oil duct (22), power take off gear (23), inner circle bearing (24), upper seal pad (25), dabber bearing (26), lower seal pad (27) constitute, characterized by: the outer ring (6) is fixedly connected with the piston (9), and the axes of the outer ring and the piston are not concentric; the upper part of the upper outer ring (8) is provided with an air hole (17); the lower part of the inner ring (7) is fixedly connected with the flywheel (3); the flywheel (3) is fixedly connected with the main shaft (1), and arc bulges for ignition or oil injection, exhaust and air intake are arranged on the flywheel (3) and are dynamically balanced with the main shaft (1) and the inner ring (7); the lower end of the mandrel (8) is fixedly connected with a mandrel bearing (26); an upper sealing gasket (25) and a lower sealing gasket (27) are respectively arranged on the upper part and the lower part of the mandrel bearing (26); the upper end of the inner ring (7) is fixedly connected with an inner ring bearing (24); the cylinder (10) is embedded on the machine body (21); the main shaft (1) is provided with a power output gear (23).

2. A reciprocating piston internal combustion engine as claimed in claim 1, wherein: the lower part of the inner ring (7) is provided with a one-way valve (20) and a lubricating oil passage (22).

3. A reciprocating piston internal combustion engine as claimed in claim 1, wherein: the mandrel bearing (26) is in clearance fit with the inner ring (7).

4. A reciprocating piston internal combustion engine as claimed in claim 1, wherein: the inner ring bearing (24) is in clearance fit with the mandrel (8).

5. A reciprocating piston internal combustion engine as claimed in claim 1, wherein: an upper sealing gasket (25), a lower sealing gasket (27), a one-way valve (20) and a lubricating oil channel (22) are respectively arranged above and below the mandrel (8) and the mandrel bearing (26) to form a lubricating oil pump, and the lubricating oil is conveyed to the parts, needing to be lubricated, of the steel ball group (18) and the piston (9).

6. A reciprocating piston internal combustion engine as claimed in claim 1, wherein: the curved raceways of the outer ring (6) and the inner ring (7) have 2 periods respectively, and each period has a peak and a valley.