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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11300020 B1

PDFFull Text
Date of Patent:
Apr. 12, 2022

Filed:

Jan. 31, 2018

Quantitative one-way oil gas lubricant system and method for 4-stroke engine

Applicant:

Zhejiang Yat Electrical Appliance Co., Ltd, Zhejiang, CN;

Inventors:

Zhijun Li, Zhejiang, CN;

Jian Yu, Zhejiang, CN;

Assignee:

ZHEJIANG YAT ELECTRICAL APPLIANCE CO., LTD, Zhejiang, CN;

Attorney:

JCIPRNET

Primary Examiner:

Grant Moubry

Int. Cl.
CPC ...
F01M 11/06 (2006.01); F01M 11/00 (2006.01); F01M 1/04 (2006.01); F01M 1/12 (2006.01); F02F 1/42 (2006.01); F02F 7/00 (2006.01); F02B 63/04 (2006.01);
U.S. Cl.
CPC ...
F01M 11/062 (2013.01); F01M 1/04 (2013.01); F01M 1/12 (2013.01); F01M 11/0004 (2013.01); F01M 11/06 (2013.01); F02B 63/04 (2013.01); F02F 1/4214 (2013.01); F02F 7/0065 (2013.01); F02F 2007/0075 (2013.01);
Abstract

A quantitative one-way oil gas lubricant system and a method for a 4-stroke engine, including a preceding stage quantitative oil intake orifice that is connected to a lubricant case on a wall of a crankcase of the 4-stroke engine, and a final stage quantitative airflow orifice disposed at a cylinder cover of the 4-stroke engine, are provided. A diameter of the preceding stage quantitative oil intake orifice Dand a diameter of the final stage quantitative airflow orifice satisfy an equation: D/D=0.8-1.5, wherein a one-way connected oil gas lubricant channel is disposed between the preceding stage quantitative oil intake orifice and the final stage quantitative airflow orifice. A lubricant oil sucked from the preceding quantitative oil intake orifice by the crankcase flows along the oil gas lubricant channel and lubricates the engine parts that the channel passes through in turns. Finally, a minute quantity of waste oil gas that flows out from the final stage quantitative airflow orifice is introduced into a cylinder of the 4-stroke engine and is to be burned completely. The supply quantity of the lubricant oil may be controlled, and no extra lubricant oil gas may flow out from the final stage quantitative airflow orifice, therefore, the quantitative and one-way lubricating is realized.

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