Balanced barrel-cam internal-combustion engine
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0698226
(2003-11-01)
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발명자
/ 주소 |
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인용정보 |
피인용 횟수 :
7 인용 특허 :
3 |
초록
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A multi-cylinder internal-combustion engine where translation between piston reciprocating motion and rotational motion occurs via a pair of conjugate axial cams with dual rolling followers on the piston-assemblies—one rolling follower per conjugate axial cam. A pair of conjugate axial cams f
A multi-cylinder internal-combustion engine where translation between piston reciprocating motion and rotational motion occurs via a pair of conjugate axial cams with dual rolling followers on the piston-assemblies—one rolling follower per conjugate axial cam. A pair of conjugate axial cams form a grooved or ribbed axial cam that is form-closed and is frequently referred to as a barrel-cam. Balanced operation is ensured through a series of relative constraints between the number and masses of uniformly spaced piston-assemblies about the barrel-cam cylinder, the shape of the barrel-cam's piston-assembly displacement profile, and also the valve-assemblies along with their actuation properties.
대표청구항
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1. A balanced barrel-cam internal-combustion engine comprising:(a) a rotating barrel cylinder through which rotational power can be transmitted,(b) a plurality of p reciprocating piston-assemblies in uniformly spaced planetary arrangement about said rotating barrel cylinder, each that includes a pis
1. A balanced barrel-cam internal-combustion engine comprising:(a) a rotating barrel cylinder through which rotational power can be transmitted,(b) a plurality of p reciprocating piston-assemblies in uniformly spaced planetary arrangement about said rotating barrel cylinder, each that includes a piston head at one or both of the ends, a linear bearing segment to ensure exclusively rectilinear non-rotational motion of said piston-assembly, and a dual roller axial cam follower,(c) a plurality of engine valve-assemblies per said piston-assembly,(d) a restrained fixture equivalent to an engine block which houses said rotating barrel cylinder, said engine valve-assemblies, and said plurality of p reciprocating piston-assemblies,(e) a barrel-cam, also known as a conjugate axial cam, that is attached to the cylindrical surface of said rotating barrel cylinder, that compliments each said dual roller axial cam follower such that the said barrel-cam's displacement profile for each said piston-assembly has n oscillations per revolution of said rotating barrel cylinder and consists of a set, denoted as J, of 1st and any higher harmonics,such that for all j from said set of harmonics J as well as for said values of p and n, p is not a factor of the expressions n×j−1, n×j, and n×j+1 whereby perfect balancing of aggregate piston-assembly forces and torques is achieved. 2. A balanced barrel-cam internal-combustion engine comprising:(a) a rotating barrel cylinder, a plurality of p reciprocating piston-assemblies, a plurality of engine valve-assemblies per said piston-assembly, and a restrained fixture, each as described in claim 1,(b) a barrel-cam, also known as a conjugate axial cam, that is attached to the cylindrical surface of said rotating barrel cylinder, that compliments each said dual roller axial cam follower such that the said barrel-cam's displacement profile for each said piston-assembly has an even number of n oscillations per revolution of said rotating barrel cylinder and consists of a set of fixed perturbations in addition to a set, denoted as J, of 1st and any higher harmonics,such that for all j from said set of harmonics J as well as for said values of p and n, p is not a factor of the expressions n×j−1, n×j, and n×j+1 whereby perfect balancing of aggregate piston-assembly forces and torques is achieved and furthermore such that the said perturbations balance the valve-assembly forces in the direction of said piston-amenably motion without introducing additional torque imbalances.
이 특허에 인용된 특허 (3)
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Lowi ; Jr. Alvin, Adiabatic, two-stroke cycle engine having novel scavenge compressor arrangement.
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Larsen Melvin J. (3655 W. Del Rio St. Chandler AZ 85226), Apparatus and method for a balanced internal combustion engine coupled to a drive shaft.
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Trimble ; James A. ; Crosby ; Ervin L., Multiple cylinder sinusoidal engine.
이 특허를 인용한 특허 (7)
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McNitt, Mark, Barrel cam rotating cylinder engine.
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Bonin, Walter T.; Jordan, Glenn A., Circulating piston engine.
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McLeod,Robert A, Compression ignition rotating cylinder engine.
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McKaig, Ray; Donovan, Brian, Reciprocating combustion engine.
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McKaig, Ray; Donovan, Brian, Reciprocating combustion engine.
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Raether, Bradley L., Systems and methods for facilitating conversion between reciprocating linear motion and rotational motion.
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Stephens,Thomas Glenn, Two-cycle swash plate internal combustion engine.
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