A four-cylinder horizontally opposed engine with variable compression ratio

A horizontally opposed, compression ratio technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problem that there is no way to change the compression ratio, and achieve the effect of lowering the center of gravity, increasing the speed, and lowering the noise

Active Publication Date: 2020-11-24
HEILONGJIANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For example, the patent number is CN201520163078.5 opposed electromagnetic drive engine, which includes a crankcase and a cylinder made of non-magnetic material. Each cylinder is provided with a permanent magnet piston, which is connected to the crankshaft through a connecting rod; the cylinder is Even number, evenly distributed on the left and right sides of the crankcase and misplaced, the permanent magnet piston in the cylinder moves left and right in the horizontal direction, and the end of each cylinder where the cylinder head is installed is equipped with a piston driving device, and the piston drives The device has a winding coil, a permanent magnetic core and a power supply amplification and shaping circuit. The magnetic poles on the opposite side of the permanent magnetic piston and the permanent magnetic core are the same, so that the permanent magnetic piston and the permanent magnetic core repel each other, and the two stop positions of the permanent magnetic piston reciprocating motion There are inner and outer sensors respectively, but the disadvantage of this device is that there is no way to change the compression ratio

Method used

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  • A four-cylinder horizontally opposed engine with variable compression ratio
  • A four-cylinder horizontally opposed engine with variable compression ratio
  • A four-cylinder horizontally opposed engine with variable compression ratio

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specific Embodiment approach 1

[0036] Combine below Figure 1-12 Describe this embodiment, a four-cylinder horizontally opposed variable compression ratio engine, including an upper frame 1, a lower frame 2, a gradient gear 3, a crankshaft 4, a piston connecting rod-5, a control connecting rod-6, and a fixed long axis- 7. Control link 2 8, link positioning connector 1 9, control arm right 10, servo motor 11, control arm connector 1 12, control arm left 13, link positioning connector 2 14, control link 3 15 , VCR crank connector one 16, fixed long axis two 17, control connecting rod four 18, VCR crank connector two 19, VCR crank connector three 20, VCR crank connector four 21, piston cylinder one 22, piston cylinder two 23 , piston cylinder three 24, piston cylinder four 25, piston connecting rod two 26, piston connecting rod three 27, piston one 28, piston two 29, piston connecting rod four 30, control arm connector two 31, piston four 32 and piston three 33. The upper frame 1 includes an upper frame body ...

specific Embodiment approach 2

[0042] Combine below Figure 1-12 Describe this embodiment, this embodiment will further explain Embodiment 1. The variable compression ratio control system includes a servo motor 11, a control arm connector 12, a control arm left 13, a control arm right 10, and a piston 3 33, so that the piston 1 The effective compression stroke of piston 28 in piston cylinder two 23 changes, so that the ratio between the effective compression stroke of piston one 28 in piston cylinder two 23 and the effective stroke of piston one 28 in piston cylinder two 23 changes (effective compression Ratio), and then realize the adjustment of the effective compression ratio of the device, through the variable compression ratio control system, the engine can adjust the optimal effective compression ratio according to the different driving conditions of the vehicle, reduce the fuel cost of the vehicle, and improve the fuel economy of the vehicle .

specific Embodiment approach 3

[0044] Combine below Figure 1-12 Describe this embodiment, this embodiment will further explain Embodiment 1, the first piston connecting rod 5 and the second piston connecting rod 26 or the third piston connecting rod 27 and the fourth piston connecting rod 30 are horizontally opposed, so that the first piston 28, the piston Two 29, piston four 32 and piston three 33 move left and right in the horizontal direction, so that the center of gravity of the engine is lowered, and it is easier to achieve overall balance. The moments cancel each other out.

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Abstract

The invention relates to an engine, in particular to a four-cylinder horizontal opposed variable compression engine. The compression ratio can be changed. The engine comprises an upper frame, a lowerframe, a gradient gear and a crankshaft, a variable compression ratio control system comprises a servo motor, an adjusting rod connecting piece I, a left control arm, a right control arm and a third piston, so that the effective compression stroke of a piston I in a piston cylinder II changes, the ratio of the effective compression stroke of the piston I in the piston cylinder II to the effectivestroke of the piston I in the piston cylinder II is changed (the effective compression ratio), so that the effective compression ratio of the engine is adjusted; the piston connecting rod I and a piston connecting rod II or a piston connecting rod III and a piston connecting rod IV are horizontally opposite, so that the gravity center of the engine is lowered, and the overall balance is easier toachieve; and a limiting boss is fixedly connected to the inner end of a lower frame body, so that damage to a motor due to overload caused by excessive deflection when a servo motor controls the maximum peak value and the minimum peak value during compression ratio changing can be prevented.

Description

technical field [0001] The invention relates to an engine, more specifically a four-cylinder horizontally opposed engine with variable compression ratio. Background technique [0002] For example, the patent number is CN201520163078.5 opposed electromagnetic drive engine, which includes a crankcase and a cylinder made of non-magnetic material. Each cylinder is provided with a permanent magnet piston, which is connected to the crankshaft through a connecting rod; the cylinder is Even number, evenly distributed on the left and right sides of the crankcase and misplaced, the permanent magnet piston in the cylinder moves left and right in the horizontal direction, and the end of each cylinder where the cylinder head is installed is equipped with a piston driving device, and the piston drives The device has a winding coil, a permanent magnetic core and a power supply amplification and shaping circuit. The magnetic poles on the opposite side of the permanent magnetic piston and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B75/24F02B75/04F02D15/02
CPCF02B75/048F02B75/24F02D15/02
Inventor 徐兵刘财勇宋俊杰王兆龙徐锦红左林东
Owner HEILONGJIANG INST OF TECH
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