Patent GB-463215-A (GB)
Title: Improvements relating to internal combustion and other engines and pumps having driving-mechanism of the swash-plate type
IPC: F16H23/08
Filed: 1935-12-21
Abstract: 463,215. Swash - plate mechanism. REDRUP, C. B. Dec. 21, 1935, No. 35442. [Class 80 (iii)] Swash-mechanism for covering reciprocatory motion into rotary motion as in an internalcombustion engine or vice versa as in a pump, comprises a swash-member, such as the member 21, Fig. 4, mounted on the crank-pin 12 of a Z-shaft rotatable about an axis X ... X, a stabilizer, such as the member 26, having a part which is constrained always to oscillate in a plane containing the axis X ... X and about the intersection M of the axis of the pin 12 and the axis X ... X, with an amplitude equal to half the amplitude of oscillation of the member 21 about that point, and means for limiting relative rotational movement between the member 21 and said part of the stabilizer about the axis X ... X to an oscillation with respect to said plane. The swash-member is so constrained by the stabilizer that all points on the swash-member lying in a plane which is transverse to the axis of the pin 12 and passes through the point M trace paths of similar figure-of-eight forms. The member 21 is a double cone connected by ball joints 24 to the connecting rods 25 of seven cylinders 13 arranged about the axis X ... X. The axis of the pin 12 is at an angle of 22¢‹ to the axis X ... X and is in two parts between which is a crank-pin 14 on which is mounted a bush 27 carrying the member 26, the pin 14 being inclined at 11“‹ to both axes. A square block rotatably mounted on the lower end of the member 26 is slidably mounted in vertical guides 30, and guides 36 fixed to the member 21 and arranged symmetrically with respect to the line joining the point M with the lowest point on the member 21 are slidable with respect to a block 38 rotatable on the member 26. The result is that the plane containing the axis GM of the pin 12 and a line MP joining the point M with the lowest point on the swashmember 21 always contains the axis Mp of the stabilizer 26, the guides 36 allowing the necessary relative movement between the members 21, 26 in the plane XMp and also bodily movement of the member 21 into and out of that plane. In the modification of Fig. 8, the pin 26 is carried by a stirrup 61 having trunnions engaging bearings formed in the swash-member 21, and the pin is oscillated from side 'to side by cams 57, 58 engaging tappets 65, 66, the arrangement allowing the necessary relative motion about the axis of the pin 26. In a modification of this form, Fig. 10 (not shown), the tappets are replaced by rings encircling the cams, the rings being carried by a bush rotatable about the axis of the pin 26. In a further modification, Fig. 11 (not shown), the pin 26 is T-shaped, the ends of the crosspiece being slotted to accommodate slidable blocks in which engage trunnions on the swashmember 21. In Fig. 13, the stabilizer is a T-shaped bar 80 having trunnions 81 mounted in bearings in the swash-member 21 and passing through a ball 83 universally movable in a block 84 slidable in guides 85 and passing also through a ball 86 movable in a block 87 sliding in guides at right angles to the guides 85. Stabilizers may be provided at several points round the axis X-X; also, the stabilizer crank may be outside the main crank so that the main swash-member is inside the stabilizer. Specification 398,553 is referred to.