Check valves, gas engine pre-chambers and gas engines
A one-way valve, pre-chamber technology, applied in combustion engines, internal combustion piston engines, engine components, etc., can solve problems such as seal cone failure, and achieve the effect of extending service life, avoiding damage and improving performance.
Active Publication Date: 2018-01-16
中国船舶集团有限公司第七一一研究所
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Problems solved by technology
refer to figure 1 , the installation of the existing one-way valve is screwed into the pre-combustion chamber through the thread 8'. During the installation process, the sealing cone surface of the one-way valve will be twisted, squeezed and torn with the sealing cone surface of the pre-chamber, and it will be disassembled many times. It is very easy to cause the sealing cone to fail
Method used
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[0017] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0018] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0019] refer to figure 2 and image 3 The main structure of the one-way valve provided by the present invention is similar to the structure of the prior art one-way valve. Specifically, the one-way valve provided by the present invention includes: valve body 9, valve seat 12 and steel ball 11, s...
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The invention discloses a one-way valve, a gas engine prechamber and a gas engine. The one-way valve comprises a valve body, a valve seat and a steel ball. The steel ball is arranged between the lower end of the valve body and the valve seat. The valve seat comprises a steel ball supporting part and an air flow guide part, wherein the steel ball supporting part is provided with a through hole, the air flow guide part is provided with an air flow channel, and the through hole is communicated with the air flow channel. An included angle is formed between the longitudinal axis of the through hole and the longitudinal axis of the air flow channel. The invention further provides the gas engine prechamber provided with the one-way valve and the gas engine provided with the prechamber. The one-way valve can make the steel ball circumferentially rotate in the ascending process, abrasion to the steel ball, the valve seat and the valve body is reduced, and the service life of the one-way valve is prolonged. A disc spring is arranged at the upper end of the valve body of the one-way valve to press the sealing conical faces of the one-way valve and the prechamber, and the performance of the gas engine prechamber and the gas engine comprising the gas engine prechamber is remarkably improved.
Description
technical field [0001] The invention relates to the field of gas engine mechanical equipment, in particular to a check valve suitable for a gas engine gas system. In addition, the present invention also relates to a gas engine pre-combustion chamber provided with the check valve, and a gas engine with the gas engine pre-combustion chamber. Background technique [0002] Natural gas is the cleanest energy among fossil energy sources, and its main component is methane, endowed with nature's "green energy". Natural gas engines can reduce 90% of nitrogen oxides and 20% of carbon dioxide emissions compared with diesel engines, and can eliminate sulfur oxides and particulate matter emissions. [0003] Natural gas engine (commonly known as: multi-point gas engine) generally adopts the pre-combustion chamber ignition method. Among them, the function of the check valve is to provide an appropriate amount of natural gas to the pre-combustion chamber of the natural gas engine. The nat...
Claims
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IPC IPC(8): F16K15/04F16K27/02F02B19/18F02B19/12
CPCF02B19/12F02B19/18F16K15/04F16K27/0209F16K27/0245Y02T10/12
Inventor 浦卫华平涛李翔郭立君
Owner 中国船舶集团有限公司第七一一研究所