Expansible chamber devices – Relatively movable working members – Interconnected with common rotatable shaft
Reexamination Certificate
1999-07-13
2001-03-20
Ryznic, John E. (Department: 3745)
Expansible chamber devices
Relatively movable working members
Interconnected with common rotatable shaft
C092S140000
Reexamination Certificate
active
06202537
ABSTRACT:
TECHNICAL FIELD
The invention relates to a connecting rod and more particularly to a connecting rod for a horizontally opposed compressor engine with 2 or 4 throw cylinders.
BACKGROUND ART
Horizontally opposed compressors are conventionally designed with the opposed cylinders offset. In 2 and 4 throw cylinder compressors an unbalanced dynamic couple force is inherent due to the offset of the opposed reciprocating mass. In 6 throw cylinder compressors the unbalanced dynamic couple forces can be substantially balanced out with proper phasing of the cylinders. U.S. Pat. No. 3,474,768 describes a diametrically opposed 4 cylinder engine with two concentric shafts that only rotate 180°, the 180° rotation is converted to 360° rotation by a connecting rod transferring the 180° rotation of each of the concentric shafts to a crankshaft.
DISCLOSURE OF THE INVENTION
Among the objects of this invention may be noted the provision of a horizontally opposed engine in which the cylinders are diametrically opposed to eliminate force couples inherent when the opposed cylinders are off set.
In general, a horizontally opposed engine when made in accordance with this invention comprises a crankshaft and at least two diametrically opposed cylinders. Each opposed cylinder has a piston and a single connecting rod cooperatively associated with the piston and the crankshaft. One of the connecting rods has a crankshaft bearing portion on one end and a wrist pin bearing portion on the other end. The other connecting rod has two spaced apart legs with a crankshaft bearing portion disposed on one end of each of the legs, the other end of the legs come together to form a wrist pin bearing portion. The spacing between the legs is sufficient to allow a portion of the crankshaft cooperatively associated with the crankshaft bearing portion of the one connecting rod to rotate between the legs of the other connecting rod. Thus, the reciprocating mass forces associated with the diametrically opposing cylinders are generally equal and opposite and cancel one another producing a smoother running engine.
REFERENCES:
patent: 405150 (1889-06-01), Dodd
patent: 2052472 (1936-08-01), Hyman
patent: 3000367 (1961-09-01), Eagleson
patent: 3112658 (1963-12-01), Derlyn
patent: 3175544 (1965-03-01), Hughes
patent: 3457804 (1969-07-01), Harkness
patent: 3474768 (1969-10-01), Anesetti
patent: 4000666 (1977-01-01), Ito et al.
patent: 4408380 (1983-10-01), Schaper et al.
patent: 4481918 (1984-11-01), Morton
patent: 4530255 (1985-07-01), Haslam
patent: 5031512 (1991-07-01), Graziani
patent: 5435232 (1995-07-01), Hammerton
patent: 5529466 (1996-06-01), Tackett
patent: 2947713 A1 (1981-07-01), None
Baehr Fred J.
Caterpillar Inc.
Ryznic John E.
LandOfFree
Connecting rod for horizontally opposed compressor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Connecting rod for horizontally opposed compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Connecting rod for horizontally opposed compressor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2528842