摘要:
A coupler, such as a piston pin, is pivotally coupled to a piston such that the piston can pivot about a first axis relative to the coupler. A connecting rod is coupled to the coupler for pivoting about a second axis. The relative positions of the first and second axes can be shifted by pivoting an eccentric portion of the coupler to thereby vary the compression ratio of a piston cylinder within which the piston slides. The coupler comprises a pivot member engager portion that is selectively shifted from first to second positions to vary the compression rates in response to shifting of a pivot member. The pivot member engager is shifted from first to second positions as the piston approaches the bottom dead center position. The pivot member and pivot member engager disengage from one another as the piston travels away from the bottom dead center position.
摘要:
A coupler, such as a piston pin, is pivotally coupled to a piston such that the piston can pivot about a first axis relative to the coupler. A connecting rod is coupled to the coupler for pivoting about a second axis. The relative positions of the first and second axes can be shifted by pivoting an eccentric portion of the coupler to thereby vary the compression ratio of a piston cylinder within which the piston slides. The coupler comprises a pivot member engager portion that is selectively shifted from first to second positions to vary the compression rates in response to shifting of a pivot member. The pivot member engager is shifted from first to second positions as the piston approaches the bottom dead center position. The pivot member and pivot member engager disengage from one another as the piston travels away from the bottom dead center position.
摘要:
A vehicle axle construction comprises a suspension for supporting the axle from first and second frame rail members. Elongated support members extend forwardly from respective locations along the frame rail members that are rearwardly of the axle and are clamped or otherwise coupled to the axle. A single pivot may be utilized to couple the respective rearmost end portions of the supports to the respective frame members. The forward ends of the supports may be coupled to respective air springs. Desirably, at least a portion of each air spring is positioned forwardly of the axle. In addition, at least one lateral stabilizer rigidifies the suspension. An alternative suspension utilizes leaf springs. A double acting rack-and-pinion steering mechanism may be rigidly coupled to the axle for use in steering the wheels of the vehicle.
摘要:
A coupler, such as a piston pin, is pivotally coupled to a piston such that the piston can pivot about a first axis relative to the coupler. The pivot pin can take various forms with unique combinations of features. A connecting rod is coupled to the coupler for pivoting about a second axis. The relative positions of the first and second axes can be shifted by pivoting an eccentric portion of the coupler to thereby vary the compression ratio of a piston cylinder within which the piston slides. The coupler comprises a pivot member engager portion that is selectively shifted from first to second positions to vary the compression rates in response to shifting of a pivot member. The pivot member engager is shifted from first to second positions as the piston approaches the bottom dead center position. The pivot member and pivot member engager disengage from one another as the piston travels away from the bottom dead center position.
摘要:
A piston coupler, such as a piston pin, is pivotally coupled to a piston such that the piston can pivot about a first axis relative to the piston pin. A connecting rod is coupled to the coupler for pivoting about a second axis. The relative positions of the first and second axes can be shifted by pivoting an eccentric portion of the piston pin to thereby vary the compression ratio of a piston cylinder within which the piston slides. An adjuster retainer is coupled to the piston or to the connecting rod. A combustion ratio adjuster (CRA) is coupled to the adjuster retainer. A biasing member couples the CRA to the piston pin. The CRA being selectively pivoted from first to second positions in response to shifting of a pivot member. Pivoting the CRA loads the biasing member with energy for use in turning the piston pin to adjust the compression ratio. The CRA is pivoted as the piston approaches the bottom dead center (BDC) position and the piston pin is turned after the piston travels away from the BDC position.
摘要:
Mechanisms are described for selectively closing grille and/or bumper openings. These mechanisms may be operated in response to one or more vehicle parameters. Closure mechanism control signals may be delivered to such mechanisms along a vehicle databus. In addition, vehicle parameters used in determining the control of such mechanisms may be sensed and provided along the databus to a controller which then processes the parameter information for determining whether to open or close the vehicle grille closing mechanism and/or the vehicle bumper opening closing mechanism.
摘要:
Mechanisms are described for selectively closing grille and/or bumper openings. These mechanisms may be operated in response to one or more vehicle parameters. Closure mechanism control signals may be delivered to such mechanisms along a vehicle databus. In addition, vehicle parameters used in determining the control of such mechanisms may be sensed and provided along the databus to a controller which then processes the parameter information for determining whether to open or close the vehicle grille closing mechanism and/or the vehicle bumper opening closing mechanism.
摘要:
A wind tunnel for measuring the aerodynamics of a vehicle may comprise a test section. Air moving through the test section may be collected in a plurality of individual ducts, each with a fan for moving the air through the test section and ducts. The vehicle or vehicle wheels may be supported at an incine.
摘要:
A seat suspension system includes a vibration dampener adapted to operate over less than the full range over which a seat may be raised and lowered by a seat height adjuster, such as an air spring. The dampener may apply dampening forces which vary non-linearly, depending upon the extent a seat moves as a result of seat vibration. In several specific forms, the dampening mechanism is unlatched to permit relative movement of the seat and seat support mechanism relative to the dampener during seat height adjustment, with the dampener being relatched to again apply a dampening force. A mechanically simply seat leveling system may be employed to return the seat to a desired elevation in the event loading on the seat is varied, for example if a seat occupant gets up off a seat.
摘要:
An electronic shift control lever assembly that transmits signal indicating a driver's desired gear selection to a variety of types of vehicle's transmissions in one form includes a steering column mounted shift lever. The shift lever is actuatable by the driver to signal a gear selection.