초록 ▼

A pressure testing apparatus for a cooling system of an internal combustion engine said pressure testing apparatus comprising a first air conduit (11), means (11A, 117A) for regulating air pressure associated with the first conduit (11) and an exhaust conduit (70, 120) in fluid communication with th

A pressure testing apparatus for a cooling system of an internal combustion engine said pressure testing apparatus comprising a first air conduit (11), means (11A, 117A) for regulating air pressure associated with the first conduit (11) and an exhaust conduit (70, 120) in fluid communication with the first air conduit (11) for exhausting of coolant from the cooling system after use and selectively actuatable valve means (61, 116) controlling the flow of coolant from the first air conduit (11) into the exhaust conduit (70, 120), whereby, in use, pressurized air can be supplied to the cooling system to pressurize the cooling system to facilitate the detection of any fluid leaks present.

대표청구항 ▼

[ What is claimed is:] [1.]1. An internal combustion engine cooling system pressure testing apparatus connectable to a source of pressurized air, said pressure testing apparatus comprising:a first air conduit;means for regulating air pressure associated with the first air conduit to maintain air pre

[ What is claimed is:] [1.]1. An internal combustion engine cooling system pressure testing apparatus connectable to a source of pressurized air, said pressure testing apparatus comprising:a first air conduit;means for regulating air pressure associated with the first air conduit to maintain air pressure at a predetermined value;means for switching off the flow of pressurized air from the source; and,an exhaust conduit in fluid communication with the first air conduit for exhausting of coolant from the cooling system after use and selectively actuatable valve means controlling flow of coolant from the first air conduit into the exhaust conduit,wherein the selectively actuatable valve means is a three-way valve facilitating flow of pressurized air into the first air conduit or flow of coolant into the exhaust conduit or maintaining the pressure of the pressurized air in the cooling system at a constant value and thereby functioning as said switching means.