CN110725744A

CN110725744A - Single-cylinder opposite-flushing type double-cavity engine

Info

Publication number: CN110725744A
Application number: CN201911054182.XA
Authority: CN
Inventors: 成立
Original assignee: Qingdao Hillock New Energy Technology Co Ltd
Current assignee: Qingdao Hillock New Energy Technology Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-01-24

Abstract

The single-cylinder opposite-impact double-cavity engine comprises a sliding cavity, a piston reciprocates in the sliding cavity, cavity covers are sealed at two ends of the sliding cavity, and working cavities are formed between the piston and the two cavity covers respectively. The invention solves the problems that the single-cylinder engine in the traditional technology can not fully utilize the reciprocating motion form of the piston due to single-stroke work, so that large output force can not be provided when the single-cylinder engine is limited to be used; and the problem that a large lubricating system cannot be added due to the limitation of the use of the working scene, so that the abrasion between the piston and the cylinder is serious along with the use is solved.

Description

Single-cylinder opposite-flushing type double-cavity engine

Technical Field

The invention relates to the technical field of engine power devices, in particular to a single-cylinder hedging type double-cavity engine.

Background

Single cylinder engines are robust and cost effective in operation. These single-cylinder engines are therefore particularly suitable for the development of combustion processes and for the testing of engine machines.

The disadvantages of a single cylinder engine are: these single cylinder engines tend to produce strong vibrations due to the fluctuating inertial forces of the crank gear. Known balance shaft systems for balancing the fluctuating inertia forces are usually arranged vertically below the crank bending. This arrangement increases the construction height of the engine. Therefore, single cylinder engines with such balancing systems generally have an unfavorable ratio of construction height to engine width.

The chinese intellectual property office discloses a patent application No. 201720484641.8, which includes a crankshaft, a connecting rod and a reciprocating piston for driving the crankshaft through the connecting rod, and a balancing device for balancing an oscillating inertial force, wherein the balancing device has a first balancing group, and a second balancing group, and wherein the crank gear is arranged in a housing between the balancing groups.

However, after analysis, the device can realize the output of power, but still has the following defects:

first, although the device can realize the transmission of power, the combustion working chamber in the cylinder body makes the piston work in a single stroke when working in the cylinder body, so that the reciprocating motion of the piston cannot be fully utilized, and a large output force cannot be provided when the device is limited to a single-cylinder engine.

Secondly, the single-cylinder engine is limited by the use of the working scene, and cannot be added with a large lubricating system, so that the abrasion between the piston and the cylinder body is serious along with the use, the service life is shortened, and the maintenance cost is increased.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a single-cylinder opposite-flushing double-cavity engine which is used for solving the problems that a single-cylinder engine in the prior art does work in a single stroke, and cannot fully utilize the reciprocating motion form of a piston, so that large output force cannot be provided when the single-cylinder engine is limited to be used; and the problem that a large lubricating system cannot be added due to the limitation of the use of the working scene, so that the abrasion between the piston and the cylinder is serious along with the use is solved.

In order to solve the above problems, the present invention provides the following technical solutions:

the single-cylinder hedging type double-cavity engine comprises a sliding cavity channel, wherein a piston reciprocates in the sliding cavity channel, cavity covers are sealed at two ends of the sliding cavity channel, and working cavities are formed between the piston and the two cavity covers respectively.

As an improved scheme, one end of the piston is further fixedly connected with a push-pull rod, one of the cavity covers is provided with a sliding hole, and the push-pull rod penetrates through the sliding hole.

As an improved scheme, the inner cavity of the piston is provided with an oil storage cavity, the outer wall of the piston is coaxially provided with first ring grooves in parallel, first sealing rings are clamped in the first ring grooves and form lubricating gaps between the first sealing rings through two adjacent sealing rings, and the peripheral wall of the piston is further provided with a communicating hole for communicating the oil storage cavity with the lubricating gaps.

As an improved scheme, a circulation cavity channel is arranged in the push-pull rod, one end of the circulation cavity channel is connected with the oil storage cavity, and the other end of the circulation cavity channel is connected with an oil supply.

As an improved scheme, a plurality of communication holes are uniformly distributed in the same lubricating gap in a radial mode.

As an improved scheme, a second ring groove is formed in the inner wall of the sliding hole, a second sealing ring is clamped in the second ring groove, and the inner ring of the second sealing ring is in friction contact with the push-pull rod.

As an improved scheme, each cavity cover is provided with an air inlet channel and an air outlet channel, and the air inlet channels and the air outlet channels on the two cavity covers sequentially and alternately act.

Compared with the prior art, the invention has the beneficial effects that:

the double-combustion working chamber is formed between the chamber cover arranged at the two ends of the sliding chamber and the piston, so that the bidirectional work doing of the single-cylinder piston is realized, the running stability of the single-cylinder engine is improved, and the working efficiency is improved by at least two times; the output power of the engine is improved when the engine is limited to the use of a single-cylinder engine; an oil storage cavity is formed by the inner cavity of the piston, and a sealing cavity is formed between the sealing ring and the inner wall of the sliding cavity channel in the oil storage cavity, so that the lubricating property of the piston in the reciprocating motion process is ensured, the abrasion is reduced, the service life is prolonged, and the maintenance cost is reduced; the oil supply to the oil storage chamber can be realized by utilizing the push-pull rod, so that the oil supply and replacement of the oil storage chamber are realized, and the running stability of the oil storage chamber is further ensured; the working efficiency is improved; the follow-up part is simplified, and the fault rate in the working process is reduced; the stability in the working process is improved; the parts are few, the working procedure is simple and convenient, and the failure rate is low; the structure is simple, and the service life is long; simple and convenient operation and control, easy large-scale manufacture and installation and wide application range.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

in the figure: 1-sliding cavity channel, 2-working cavity, 3-cavity cover, 4-air inlet channel, 5-exhaust channel, 6-push-pull rod, 7-flow cavity channel, 8-piston, 9-second sealing ring, 10-sliding hole, 11-first sealing ring, 12-lubricating gap and 13-communicating hole.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 and 2, the single-cylinder opposed-impact dual-cavity engine comprises a sliding cavity channel 1, a piston 8 reciprocates in the sliding cavity channel 1, cavity covers 3 are sealed at two ends of the sliding cavity channel 1, and working cavities 2 are respectively formed between the piston 8 and the two cavity covers 3.

One end of the piston 8 is also fixedly connected with a push-pull rod 6, one of the cavity covers 3 is provided with a sliding hole 10, and the push-pull rod 6 penetrates through the sliding hole 10.

The inner chamber of piston 8 is equipped with the oil storage cavity, has seted up first annular on the outer wall of piston 8 coaxial side by side, and first annular is interior the snap-fit has first sealing washer 11 to form lubricated space 12 between two adjacent first sealing washers 11, still offer the intercommunicating pore 13 that is used for being linked together oil storage cavity and lubricated space 12 on the perisporium of piston 8.

The inside circulation chamber way 7 that is equipped with of push-pull rod 6, the oil storage cavity is connected to the one end that circulates chamber way 7, and the other end is connected for the oil supply, has realized the supply and the change to the inside lubricating oil of oil storage cavity.

Wherein the push-pull rod 6 moves axially, and the other end of the push-pull rod 6 is connected with a power output device below, for example, the power output device is connected with a crankshaft or an eccentric wheel through a connecting rod to realize power transmission.

A plurality of communication holes 13 are uniformly distributed in the same lubricating gap 12 along the radial direction.

A second annular groove is formed in the inner wall of the sliding hole 10, a second sealing ring 9 is clamped in the second annular groove, and the inner ring of the second sealing ring 9 is in friction contact with the push-pull rod 6, so that the sealing performance of the lower combustion chamber is guaranteed.

Each cavity cover 3 is provided with an air inlet channel 4 and an air outlet channel 5, and the air inlet channels 4 and the air outlet channels 5 on the two cavity covers 3 act in turn and alternately.

Wherein, the air inlet channel 4 and the air outlet channel 5 can also be arranged on the sliding cavity channel according to the actual requirement;

the action relationship between the air inlet channel 4 and the air outlet channel 5 on each cavity cover 3 and the oil supply relationship between the air inlet channel and the oil channel adopt common working modes in daily life, and are not innovative in the scheme, so that the detailed description is omitted.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides a single cylinder offset type two-chamber engine which characterized in that: the device comprises a sliding cavity channel (1), wherein a piston (8) reciprocates in the sliding cavity channel (1), cavity covers (3) are sealed at two ends of the sliding cavity channel (1), and working cavities (2) are respectively formed between the piston (8) and the two cavity covers (3).

2. A single cylinder, opposed dual chamber engine according to claim 1, wherein: one end of the piston (8) is further fixedly connected with a push-pull rod (6), one of the cavity covers (3) is provided with a sliding hole (10), and the push-pull rod (6) penetrates through the sliding hole (10).

3. A single cylinder, opposed dual chamber engine according to claim 2, wherein: the inner chamber of piston (8) is equipped with the oil storage cavity, first annular has been seted up on the outer wall of piston (8) coaxial side by side, first annular inside callipers is equipped with first sealing washer (11), and through adjacent two form lubricated space (12) between first sealing washer (11), still seted up on the perisporium of piston (8) and be used for with the oil storage cavity with intercommunicating pore (13) that lubricated space (12) are linked together.

4. A single cylinder, opposed dual chamber engine according to claim 3, wherein: the oil storage device is characterized in that a circulation cavity channel (7) is arranged inside the push-pull rod (6), one end of the circulation cavity channel (7) is connected with the oil storage cavity, and the other end of the circulation cavity channel is connected with an oil supply.

5. A single cylinder, opposed dual chamber engine according to claim 3, wherein: a plurality of communication holes (13) are uniformly distributed in the same lubricating gap (12) along the radial direction.

6. A single cylinder, opposed dual chamber engine according to claim 2, wherein: the inner wall of the sliding hole (10) is provided with a second annular groove, a second sealing ring (9) is clamped in the second annular groove, and the inner ring of the second sealing ring (9) is in friction contact with the push-pull rod (6).

7. A single cylinder, opposed dual chamber engine according to claim 1, wherein: each cavity cover (3) is provided with an air inlet channel (4) and an air outlet channel (5), and the two air inlet channels (4) and the two air outlet channels (5) on the cavity covers (3) act in turn and alternately.