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公开(公告)号:JPH0466704A
公开(公告)日:1992-03-03
申请号:JP18100090
申请日:1990-07-09
Applicant: KITAGUCHI HIROMASA
Inventor: KITAGUCHI HIROMASA
Abstract: PURPOSE:To obtain a valve mechanism that is of a simple structure and conducts a high performance operation, by providing one valve at one cylinder, and conducting both operations of air intake and exhaust by means of a cam, and at the same time operating by means of the cam changeover valve whose purpose is to conduct the changeover of air intake and exhaust at the outside of the cylinder. CONSTITUTION:An eccentric drum 3 is fixed at an output shaft 1, and a gear 3 is made to make an eccentric movement. Also, an internal gear 4 fixed at a case 22 is meshed with the gear 3, and also an eccentric pin 5 is inserted into a carrier 6 in a rotatable state, and inserted into the hole of the gear 3. In addition, a bevel gear 7 is fixed at the carrier 6 and drives a small bevel gear 8, and at the same time the gear 8 is directly connected to a cam shaft 9. And one cam shaft 9 is provided at each one of cylinders, and at the same time a valve 11 also is provided at each cylinder, and both air intake and exhaust are conducted with one valve. Meanwhile, the changeover of air intake and exhaust is conducted by means of a main vane 12 and a sub vane 13, and air intake and exhaust are better conducted at the cam portion of the shaft 9 at timing with the valve 11.
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公开(公告)号:JPS6436905A
公开(公告)日:1989-02-07
申请号:JP19199287
申请日:1987-07-31
Applicant: MITSUBISHI HEAVY IND LTD
Inventor: FUKUYOSHI TADASHI , TAKAISHI TAKEO , TAKASAKI KIYOSHI
IPC: F01L1/28
Abstract: PURPOSE:To aim at the promotion of high speed and high output in an engine by setting up a feed-exhaust valve doubling as a feed valve and an exhaust valve, in a cylinder head. CONSTITUTION:One feed-exhaust valve 101 doubling as a feed valve and an exhaust valve is set up in a cylinder hear 4 upward a combustion chamber 2. A check valve 107 is installed in the midway of an air charging passage 6 to be connected to a feed pipe 7. In addition, an exhaust control valve 109 is installed in the midway of an exhaust passage 14 to be connected to an exhaust pipe 15. Since it is set down to a single valve system, a valve area can be made larger and, what is more, feed-exhaust efficiency is improvable. With this constitution, an engine can be promoted to higher speed and output than ever before.
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公开(公告)号:JPS61178518A
公开(公告)日:1986-08-11
申请号:JP1899385
申请日:1985-02-03
Applicant: NOGUCHI YUJI
Inventor: NOGUCHI YUJI
Abstract: PURPOSE:To improve suction efficiency by also carrying out suction through an exhaust valve which has been used for only exhausting. CONSTITUTION:In an intake stroke, a switching valve 2 is pressed down to shut an exhaust pipe 5 in the lower part of a switching chamber 1. In this case, an exhaust valve 6 is also pressed down, and suction is carried out through the exhaust valve 6 as well as an intake valve 7. In a compression-explosion stroke, the intake and exhaust valves are closed, and the switching valve 2 has already returned to the upper part of the switching chamber 1. In an exhaust stroke, the switching valve 2 shuts an intake pipe 4 to prevent exhaust gas from entering the intake pipe 4, thus exhaust is carried out through the exhaust valve 6.
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公开(公告)号:JPS5828408B2
公开(公告)日:1983-06-15
申请号:JP569875
申请日:1975-01-11
Applicant: DAIHATSU MOTOR CO LTD
Inventor: MYAJIMA KEITARO
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公开(公告)号:JPS57200609A
公开(公告)日:1982-12-08
申请号:JP8639881
申请日:1981-06-04
Applicant: FUJI HEAVY IND LTD
Inventor: KADOI NORIAKI
Abstract: PURPOSE:To improve efficiency of suction and exhaust by making suction and exhaust valve a double mechanism capable of a double action. CONSTITUTION:Main valve 11 having air vent 21 is opened in successive motion with sub-valve 19 after the opening motion of sub-valve 19 which opens and closes air vent 21 of main valve 11. Therefore, actual opening area is enlarged, so that efficiency of suction and exhaust can be improved. Such effect as improvement of combustion speed in the sucked mixing air and distribution promotion of exhaust gas between the sucked and exhausted air is then mixed up by circling current which passes the air vent.
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