GB1481802A – Internal combustion engines
– Google Patents
GB1481802A – Internal combustion engines
– Google Patents
Internal combustion engines
Info
Publication number
GB1481802A
GB1481802A
GB42104/73A
GB4210473A
GB1481802A
GB 1481802 A
GB1481802 A
GB 1481802A
GB 42104/73 A
GB42104/73 A
GB 42104/73A
GB 4210473 A
GB4210473 A
GB 4210473A
GB 1481802 A
GB1481802 A
GB 1481802A
Authority
GB
United Kingdom
Prior art keywords
valve
rotor
opening
valve rotor
housing
Prior art date
1973-09-07
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB42104/73A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cross Manufacturing Co 1938 Ltd
Original Assignee
Cross Manufacturing Co 1938 Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1973-09-07
Filing date
1973-09-07
Publication date
1977-08-03
1973-09-07
Application filed by Cross Manufacturing Co 1938 Ltd
filed
Critical
Cross Manufacturing Co 1938 Ltd
1973-09-07
Priority to GB42104/73A
priority
Critical
patent/GB1481802A/en
1974-09-06
Priority to US05/504,689
priority
patent/US4010727A/en
1977-08-03
Publication of GB1481802A
publication
Critical
patent/GB1481802A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
F01L7/16—Sealing or packing arrangements specially therefor
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
F01L7/021—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with one rotary valve
F01L7/024—Cylindrical valves comprising radial inlet and axial outlet or axial inlet and radial outlet
Abstract
1481802 IC engine rotary valves CROSS Mfg CO (1938) Ltd 9 Sept 1974 [7 Sept 1973] 42104/73 Heading FIB In a rotary valve controlling the inlet to and exhaust from the combustion chamber of an I.C. engine via an opening in the valve housing and comprising a valve rotor rotatably mounted within the valve housing and subjected to a controlled loading such that a proportion of the combustion force is used to provide a self-adjusting, substantially no-clearance seal between the valve rotor and its housing and wherein the combustion force tending to lift the valve rotor from the opening is counteracted by an opposing force of at least 8% in excess of the lifting force, a copious amount of lubricant is supplied to the interface between the valve rotor and the housing at a location after the valve rotor has passed the opening to lubricate and cool the valve rotor, excess lubricant being removed from the valve rotor before it passes over the opening. The valve is of the type in which the upper part 3, Fig. 1, of the valve housing is hinged about a pin 6 to the lower part 4, the reaction from the combustion being taken by a beam 10 supported by pillars 8 and bearing against the valve housing part 3 at a point C offset at a distance Y from the pin 6 whereby the downward reaction B exceeds the combustion force A by 8% to 15%. The means for removing the excess lubricant from a cylindrical valve rotor may comprise a lip 13, Fig. 8, surrounding the opening 14 into the combustion chamber and upstanding by 1/300 to 1/1000 of the rotor diameter. The lip may be formed by an insert fitted into a relieved area 15 of the lower part of the valve housing and bevelled at 16. Instead, the lip 13 may be an integral part of the valve housing and surrounded by a relieved area (12), Fig. 9 (not shown), the depth of which may taper to zero in the direction away from the lip. In the case of a cylindrical or, as shown in Fig. 16, a spherical valve rotor 29, the seal around the opening 32 into the combustion chamber may comprise an insert 38 having a spiral groove 35 containing a continuous seal strip 36 which may be resilient and, when released before insertion into the groove, extending generally in a single plane, Fig. 17 (not shown). Packing strips 37 are provided. The depth of the groove 35 may vary from a maximum near the opening 32 to a minimum at the other end. Oil supply and drainage passages 40, 41 may be provided. As shown in Fig. 19, the strip 36 bears against the valve rotor 29 with a sharp edge to effect sealing and remove excess lubricant. The single spiral groove may be replaced by a series of concentric grooves. The strip 36 may be omitted, the groove 35 then forming a labyrinth seal. The groove may be inclined to, or parallel with, the axis of rotation. Removal of excess lubricant from a cylindrical valve rotor 43, may be effected by a scraper 49, Fig. 20, urged against the rotor by springs 50. The removed lubricant passes via a slot 57 and holes 55 in the scraper and a non-return valve 54 to a drain passage 56. The removal may be assisted by a vacuum pump. The slot 57 and holes 55 in the scraper may be replaced by grooves (58), Figs. 23, 24 (not shown) in the valve housing.
GB42104/73A
1973-09-07
1973-09-07
Internal combustion engines
Expired
GB1481802A
(en)
Priority Applications (2)
Application Number
Priority Date
Filing Date
Title
GB42104/73A
GB1481802A
(en)
1973-09-07
1973-09-07
Internal combustion engines
US05/504,689
US4010727A
(en)
1973-09-07
1974-09-06
Internal combustion engine
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB42104/73A
GB1481802A
(en)
1973-09-07
1973-09-07
Internal combustion engines
Publications (1)
Publication Number
Publication Date
GB1481802A
true
GB1481802A
(en)
1977-08-03
Family
ID=10422868
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB42104/73A
Expired
GB1481802A
(en)
1973-09-07
1973-09-07
Internal combustion engines
Country Status (2)
Country
Link
US
(1)
US4010727A
(en)
GB
(1)
GB1481802A
(en)
Families Citing this family (20)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1574056A
(en)
*
1977-03-25
1980-09-03
Cross Mfg Co
Rotary valves
US4444161A
(en)
*
1980-03-21
1984-04-24
Williams Thomas V
Rotary valve for inherently balanced engine
US4989576A
(en)
*
1981-07-30
1991-02-05
Coates George J
Internal combustion engine
DE3367651D1
(en)
*
1982-07-27
1987-01-02
Guy Negre
Sealing element for a gas-cycle control device for a combustion chamber
FR2531174A1
(en)
*
1982-07-27
1984-02-03
Guy Negre
Sealing element for a rotary ball-cock.
ES2008996A6
(en)
*
1988-06-06
1989-08-16
Ocana Triguero Felix
Improvements to an intake and exhaust system with a rotating port shaft for four-cycle internal combustion engines.
EP0673471B1
(en)
*
1992-11-06
1998-05-13
A.E. Bishop Research Pty. Limited
Lubrication system for rotary valve
US5579730A
(en)
*
1996-02-09
1996-12-03
Trotter; Richard C.
Rotary valve head assembly and related drive system for internal combustion engines
US5908016A
(en)
*
1996-03-06
1999-06-01
The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration
Carbon fiber reinforced carbon composite rotary valves for internal combustion engines
US5711265A
(en)
*
1996-07-22
1998-01-27
Duve; Donald A.
Rotary valve drive mechanism
US6098579A
(en)
*
1997-03-06
2000-08-08
The United States Of America As Represented By The United States National Aeronautics And Space Administration
Carbon fiber reinforced carbon composite rotary valve for an internal combustion engine
CA2324102C
(en)
*
1998-03-17
2007-12-04
Tecat Engineering, Inc.
High power density, diesel engine
ES2249068B1
(en)
*
2002-06-10
2007-06-01
Antonio Ferreres Lopez
ROTARY DISTRIBUTION VALVE.
AU2003254658A1
(en)
*
2002-07-25
2004-02-16
Jung Wook Lee
Spherical rotary engine valve assembly
GB2393216A
(en)
*
2002-09-19
2004-03-24
Takis Sozou
I.c. engine with rotary, eg part-spherical, valves
WO2006069503A1
(en)
*
2004-12-31
2006-07-06
Yamin Liu
Multiple-combustion chamber two-stroke engine
US8714120B2
(en)
*
2008-01-04
2014-05-06
Illinois Tool Works Inc.
Single component intake/exhaust valve member, fuel distribution system, and cooling system for combustion-powered fastener-driving tool
CN104884763B
(en)
*
2013-01-08
2018-10-16
博格华纳公司
Oil discharge outlet for turbo-charger bearing shell
US20140338631A1
(en)
*
2013-05-17
2014-11-20
Benjamin Ellis
Internal combustion engines and related methods
US20180156209A1
(en)
*
2016-12-02
2018-06-07
Harris Corporation
Rotary Valve for a Reversible Compressor
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB423474A
(en)
*
1934-04-20
1935-02-01
Roland Claude Cross
Improvements in rotary valves for internal combustion engines, pumps, and the like
GB451917A
(en)
*
1936-02-21
1936-08-13
Roland Claude Cross
Improvements in rotary valve internal combustion or other engines or pumps
1973
1973-09-07
GB
GB42104/73A
patent/GB1481802A/en
not_active
Expired
1974
1974-09-06
US
US05/504,689
patent/US4010727A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
US4010727A
(en)
1977-03-08
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Legal Events
Date
Code
Title
Description
1977-12-14
PS
Patent sealed [section 19, patents act 1949]
1993-05-05
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19920909
