US3884199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine valve operating system
Assignee: Honda Motor Co Ltd
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Filing: 1973-11-29
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Granted: 1975-05-20
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Expires: 1993-11-29
Abstract
Abstract A valve operating system for engines of the type including a main combustion chamber having intake and exhaust valves, an auxiliary combustion chamber having an auxiliary intake valve, a spark plug, and a torch nozzle communicating with the main combustion chamber; the valve operating system including main and auxiliary rocker arms for actuating the main and auxiliary intake valves which are operated by a common upper tappet, a push rod and a lower tappet connected by ball and socket joints, the lower tappet being cam operated. A similar cam operated assembly, including a rocker arm, is provided to operate the exhaust valve.
Inventors
- 👤 Shoichiro Irimajiri
- 👤 Masayuki Kumada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:36
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01L1/146; F01L1/26; F02; F02B; F02B19/00; F02B19/10; F02B19/1019; F02B19/1023; F02B19/1028; F02B19/1042; F02B1/00; F02B1/02; F02B1/04; F02B2275/00; F02B2275/34; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02F2001/244; F02F2001/245; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
An engine having an engine head, a main combustion chamber and an auxiliary combustion chamber connected to the main combustion chamber through a torch nozzle; the chambers having respectively, a main and an auxiliary intake valve and the main chamber also having an exhaust valve; said engine comprising: intake and exhaust passages extending into one side of the engine head to communicate with the intake and exhaust valves; intake valve and exhaust valve actuating tappets slidably disposed in immediately adjacent parallel relation passing between said intake and exhaust passages in the engine head; actuating means operatively connecting the intake valve tappet to both of the intake valves; a cam shaft; a corresponding pair of cam actuated slidable tappets disposed in parallel relation adjacent the Cam shaft; and means connecting the valve actuating tappets and cam actuated tappets.
Claim 2
Dependent Claim
137 words
An engine having an engine head, a main combustion chamber and an auxiliary combustion chamber connected to the main combustion chamber through a torch nozzle; the chambers having respectively, a main and an auxiliary intake valve and the main chamber also having an exhaust valve; said engine comprising: intake and exhaust passages extending into one side of the engine head to communicate with the intake and exhaust valves; intake valve and exhaust valve actuating tappets slidably disposed in immediately adjacent parallel relation passing between said intake and exhaust passages in the engine head; actuating means operatively connecting the intake valve tappet to both of the intake valves; a cam shaft; a corresponding pair of cam actuated slidable tappets disposed in parallel relation adjacent the Cam shaft; and means connecting the valve actuating tappets and cam actuated tappets.
Claim 3
Dependent Claim
49 words
A valve operating system, as defined in claim 1, wherein: said actuating means includes a main intake valve rocker arm and an auxiliary intake valve rocker arm, the rocker arms being mounted on separate shafts and mutually engageable to effect simultaneous operation of said main and auxiliary intake valves.
Claim 4
Dependent Claim
42 words
A valve operating system, as defined in claim 1, wherein: the connecting means between the tappets are push rods and form with the tappets ball and socket joints permitting the cam operated tappets to have greater spacing than the valve actuating tappets.
Claim 5
Dependent Claim
187 words
An engine having V-related pairs of coplanar cylinders, each cylinder having a main combustion chamber, and an auxiliary combustion chamber connected to the main combustion chamber through a torch nozzle, the chambers having, respectively, a main and an auxiliary intake valve, the main chamber also having an exhaust valve, the engine having engine heads, said engine comprising: intake and exhaust passages extending into one side of each engine head to communicate with the intake and exhaust valves; intake valve and exhaust valve actuating tappets for each cylinder sidably disposed in immediately adjacent parallel relation clearing the intake and exhaust passages in the engine heads; actuating means operatively connecting the intake valve tappet to both of the intake valves; a cam shaft common to each pair of cylinders; a pair of cam actuated slidable tappets for the valve actuating tappets of each cylinder disposed in parallel relation adjacent the cam shaft, at least one of said pair of cam actuated slidable tappets being laterally displaced from the centerline of the corresponding valve actuating tappet; and pushrods connecting the valve actuating tappets and cam actuated tappets to each cylinder.
Claim 6
Dependent Claim
187 words
An engine having V-related pairs of coplanar cylinders, each cylinder having a main combustion chamber, and an auxiliary combustion chamber connected to the main combustion chamber through a torch nozzle, the chambers having, respectively, a main and an auxiliary intake valve, the main chamber also having an exhaust valve, the engine having engine heads, said engine comprising: intake and exhaust passages extending into one side of each engine head to communicate with the intake and exhaust valves; intake valve and exhaust valve actuating tappets for each cylinder sidably disposed in immediately adjacent parallel relation clearing the intake and exhaust passages in the engine heads; actuating means operatively connecting the intake valve tappet to both of the intake valves; a cam shaft common to each pair of cylinders; a pair of cam actuated slidable tappets for the valve actuating tappets of each cylinder disposed in parallel relation adjacent the cam shaft, at least one of said pair of cam actuated slidable tappets being laterally displaced from the centerline of the corresponding valve actuating tappet; and pushrods connecting the valve actuating tappets and cam actuated tappets to each cylinder.
Claim 7
Dependent Claim
108 words
An engine comprising: an engine head; a coombustion chamber; intake and exhaust valves associated with said combustion chamber; intake and exhaust passages extending into one side of said engine head to communicate with said intake and said exhaust valves; intake valve and exhaust valve actuating tappets slidably disposed in immediately adjacent parallel relationship between the intake and exhaust passages in the engine head; actuating means operably connecting said valve tappets to said valves; a cam shaft; a corresponding pair of cam actuated slidable tappets disposed in parallel relation adjacent the cam shaft and push rods disposed in unparallel relation connecting the valve actuating tappets and cam actuated tappets.
Claim 8
Dependent Claim
108 words
An engine comprising: an engine head; a coombustion chamber; intake and exhaust valves associated with said combustion chamber; intake and exhaust passages extending into one side of said engine head to communicate with said intake and said exhaust valves; intake valve and exhaust valve actuating tappets slidably disposed in immediately adjacent parallel relationship between the intake and exhaust passages in the engine head; actuating means operably connecting said valve tappets to said valves; a cam shaft; a corresponding pair of cam actuated slidable tappets disposed in parallel relation adjacent the cam shaft and push rods disposed in unparallel relation connecting the valve actuating tappets and cam actuated tappets.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |