GB208916A - Improvements in the lubrication systems of internal combustion engines - Google Patents

Abstract

208,916. Dennis Bros., Ltd., Dennis, J. C., and Charles, C. R. Jan. 3, 1923. Controlling flow of lubricant.-The supply of lubricant to an internal-combustion engine is automatically controlled by a valve connected to a piston, diaphragm or the like subjected to the suction in the induction systems. The valva chamber has at one end a passage D<2> communicating with the induction system through a pipe B<3>, and at the other end a lubricant inlet passage B<6> with a seating around it on which a loaded valve normally seats. A lateral outlet passage B<7> is arranged adjacent the valve. As shown in Fig. 1, a piston A<2> working in the valve chamber B is coned at one end to constitute the valve A which is normally pressed by a spring C, in an axial recess in the piston, against the seating B<4>. A flange B<5> is provided for securing the device to the underside of a supply tank E. The outlet passage B<7> leads to a sight-feed F with needle valve F<2>. The, pistons may be replaced by a diaphragm or bellows. In the form shown in Fig. 2, a diaphragm G also constitutes the valve, the diaphragm being normally pressed up by a spring J against the seating H<5>. The arrangement shown in Fig. 1 may be modified so as to give an increased supply as the suction diminishes, corresponding to an increased load, by providing a second seating at the other end of the passage B<6> for a second valve secured to the valve A by a stem extending with clearance through the passage B<6>.